Renovation
189 sources in the library on renovation, 13 on this page cited in a published note. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 3 of 5.
- supplier figure RN-P3V2FA cited
Knauf Insulation
Knauf Insulation's product page for Loft Roll 44, a standard glass mineral wool loft roll for ceiling-level insulation, giving its thermal conductivity of 0.044 W/mK.
Cited in Renovating a 1930s House.
- supplier figure RN-DOEIIO cited
Lincolnshire Lime
A lime supplier's product page for a 25 kg tub of mature lime putty at £19.00 plus VAT, £22.80 including VAT, inside the note's £20–£25 tub price.
Cited in Lime Plaster & Lime Mortar Explained.
- supplier figure RN-XEERPR cited
Mike Wye & Associates
A lime supplier's product page for 25 kg bags of natural hydraulic lime, listing NHL 3.5 at £12.00 plus VAT (£14.40 with VAT), the bottom of the note's £14–£21 bag price.
Cited in Lime Plaster & Lime Mortar Explained.
- supplier figure RN-87UV88 cited
Pilkington (NSG Group)
A glass maker's product page for a soft-coat low-E glass. It gives centre-pane U-values of 1.0 W/m²K in a double-glazed unit and as low as 0.5 W/m²K triple-glazed.
Cited in Replacing Windows: uPVC vs Timber vs Aluminium Costs.
- supplier figure RN-MVHSAB cited
Radiators4u
Specialist retailer's product page reproducing Carron's technical data for a 16-section 760 mm Victorian 4-column radiator: 1,435 W (4,896 BTU) at ΔT50.
Cited in Restoring Cast Iron Radiators.
- supplier figure RN-F7WC5W cited
Reclaimed Brick Company
A reclaimed brick supplier's product page: a pack of 250 reclaimed London yellow stocks with free delivery at £720 including VAT, about £2.88 a brick.
Cited in Reclaimed Materials: Buying & Using.
- supplier figure RN-MRDMWI cited
Rustins
Rustins' product page for its high heat black paint for stoves, fireplaces and grates. It gives the product's heat resistance as 600 degrees Celsius, correcting the note's 200 to 300 degree figure.
Cited in Restoring Period Features.
- supplier figure RN-2WLOLC cited
Safeguard Europe
The manufacturer's product and application page for Dryzone, a silane/siloxane DPC injection cream. It gives the drill hole diameter, 120 mm hole intervals and depths by wall thickness for a remedial chemical DPC.
Cited in Damp Proofing: Methods, Costs & When You Need It, DPC Injection vs Membrane for Rising Damp.
- supplier figure RN-TFKNM3 cited
Stelrad
Radiator maker's Delta T correction factor table: at ΔT30 a radiator delivers 0.513 of its ΔT50 output, about half.
Cited in Restoring Cast Iron Radiators, Room-by-Room Radiator Sizing.
- supplier figure RN-XQ0TOD cited
Triton Showers
Shower maker's cable-sizing guidance: 6 mm² is typically suitable up to 8 kW in favourable conditions, and 10 mm² is generally required above 8 kW, such as for a 9.5 kW shower.
- supplier figure RN-5QDLYP cited
Vaillant
Vaillant's terms for its domestic boiler guarantees. It sets the 30-day registration rule, the annual service condition and what the guarantee covers.
- supplier figure RN-NG4WJU cited
Warmup
Manufacturer product page for electric UFH. It lists mat outputs of 150 and 200 W/m2 and a foil heater at 140 W/m2, the range the sentence gives for full-load ratings.
Cited in Underfloor Heating: Costs, Types & Is It Worth It?.
- supplier figure RN-TVF1W9 cited
Worcester Bosch
Worcester Bosch's page on guarantee lengths for its boiler ranges. It gives standard and extended terms and the filter and accredited installer conditions.
- very strong RN-LNQ9GJ
Revenue Scotland
The Scottish replacement for Stamp Duty Land Tax, which every England-written renovation note gets wrong for Scottish readers. LBTT replaced UK Stamp Duty Land Tax in Scotland from 1 April 2015 and is collected by Revenue Scotland, not HMRC. Its structure is progressive in the same way as SDLT: the percentage rate for each band applies only to the part of the price above the relevant threshold and up to the next, and nothing is payable below the first threshold. Separate rate and band tables exist for residential properties, residential property with the Additional Dwelling Supplement, non-residential properties and commercial leases. The Additional Dwelling Supplement is the Scottish equivalent of the higher rates for additional properties. Revenue Scotland also administers the Scottish Landfill Tax, the Scottish Aggregates Tax and the Scottish Building Safety Levy, and publishes a tax calculator and legislation guidance.
- very strong RN-JHFWQB
World Health Organization Regional Office for Europe
Published 15 October 2009, ISBN 9789289041737, the health-based benchmark for night-time noise that a soundproofing or acoustic glazing note can cite for what level of quiet is worth achieving. Using Lnight,outside as defined in the Environmental Noise Directive 2002/49/EC, it sets an Lnight,outside of 40 dB as the target of the night noise guideline to protect the public including the most vulnerable groups, named as children, the chronically ill and the elderly. It recommends an Lnight,outside of 55 dB as an interim target for countries that cannot achieve the guideline in the short term and adopt a stepwise approach. The guidelines were agreed by a working group of experts with industry, government and non-governmental stakeholders in December 2006, and extend and update the WHO Guidelines for community noise of 1999.
- very strong RN-BPHKK9
Cadw, Welsh Government
WALES, and it imposes a documentary requirement England does not. A heritage impact statement MUST be submitted with every Welsh listed building consent application alongside detailed plans. Consent is administered by local planning authorities and may be needed for relatively minor work such as replacing an external door, painting or repainting the exterior or interior, or even cleaning. Replacement of traditional windows with UPVC will not normally be acceptable. Routine or like-for-like repairs do not normally need consent, but the criteria are exacting, and demolition always needs consent. Where the authority is minded to grant consent Cadw is normally notified and assesses whether the authority had proper regard to preservation, rather than the merits. The framework is Managing Change to Listed Buildings in Wales, which supplements Planning Policy Wales and Technical Advice Note 24: The Historic Environment, alongside Cadw's Conservation Principles.
- very strong RN-XHXJR2
Cadw, Welsh Government
WALES. It is a criminal offence to demolish, alter or extend a listed building in any way that affects its character as a building of special architectural or historic interest without listed building consent. Like-for-like repairs such as replacing roof slates with the same size and type of slate do not normally need consent, but cleaning stonework or replacing windows is likely to. A certificate of immunity from listing can be applied for from Cadw and prevents listing for FIVE YEARS from issue, during which a local planning authority may not serve a building preservation notice. A building preservation notice protects an unlisted building as if listed for up to six months while Cadw assesses it, with compensation potentially payable for loss caused by interim protection if it is not listed. Delisting proposals are consulted on with the owner, occupier, local planning authority and other interested parties, allowing 28 days for written responses. Authorities can carry out urgent works to preserve a listed building and recover the cost from the owner, issue a repairs notice, and ultimately pursue compulsory purchase.
- very strong RN-C20YEY
Department for Energy Security and Net Zero
A closed scheme that still binds new owners, which is a trap for anyone buying a property to renovate. The Green Deal is closed to new applicants, but where a property carries a Green Deal loan the liability travels with the property: whoever moves in is responsible for repaying it, through a charge added to the electricity bill, and can change electricity supplier only to one participating in the scheme. A seller or landlord is legally required to tell a buyer or tenant that a Green Deal loan exists, that they will be responsible for it, and to show them the Energy Performance Certificate before they move in; the EPC states what improvements were made and how much remains to be repaid. Early repayment is possible but may attract extra costs, notified by the company managing the loan. Complaints go to the Green Deal provider first, whose details are on the EPC, or to the DESNZ Green Deal team if the provider has ceased trading; if unresolved within 8 weeks the complaint goes to the Financial Ombudsman Service for mis-selling and other financial issues, or to the Energy Ombudsman for poor installation work or non-disclosure by a seller or landlord.
- very strong RN-8XFMI0
Department of Finance (Northern Ireland)
The Northern Ireland index of technical booklets, which take the place of England's Approved Documents under the Building Regulations (Northern Ireland) 2012. Current editions: B materials and workmanship (July 2013), C site preparation and resistance to contaminants and moisture (October 2012), D structure (October 2012), E fire safety (October 2012), F1 conservation of fuel and power in dwellings and F2 in other buildings (both June 2022), G resistance to the passage of sound (October 2012), H stairs, ramps, guarding and protection from impact (October 2012), J solid waste (October 2012), K ventilation (October 2012), L combustion appliances and fuel storage (October 2012), M physical infrastructure for high-speed communications networks (January 2017), N drainage (October 2012), P sanitary appliances, unvented hot water storage and reducing the risk of scalding (October 2012), R access to and use of buildings (October 2012) and V glazing (October 2012). Note for any electrical note: there is no Northern Ireland technical booklet covering electrical safety, so there is no Part P equivalent and no electrical competent person self-certification regime there. Ventilation is Booklet K, drainage Booklet N and glazing Booklet V, not F, H and K as in England.
- very strong RN-33L9HJ
GOV.UK
The council grant for adapting a home, and what work it can pay for. Eligibility covers physical disability, learning disability, age-related needs, autism, cognitive impairment such as dementia, a progressive condition such as motor neurone disease, terminal illness and mental health conditions. The listed works are wide enough to cover substantial building work: widening doors and installing ramps or grab rails, improving access to rooms and facilities with a stairlift or level access shower, improving access to the garden, building an extension such as a downstairs bedroom, providing a heating system suitable for the applicant's needs, and adapting heating or lighting controls. Confirms a Disabled Facilities Grant does not affect any other benefits the applicant receives.
- very strong RN-JPYSJ1
GOV.UK
Carries the maximum grant by nation, which differs across the UK and is the figure most articles quote wrongly. England up to 30,000 pounds, Wales up to 36,000 pounds, Northern Ireland up to 25,000 pounds, and in Scotland Disabled Facilities Grants are not available at all, with support instead provided through equipment and adaptations schemes. Some councils may give more. The award is means tested on household income and household savings over 6,000 pounds, but disabled children under 18 can get a grant without their parents' income being taken into account, and landlords can get one without their income and savings being assessed, though the council may require the property to be let to another disabled person if the tenant moves within 5 years. Warns that starting work before the council approves the application may mean no grant at all. Payment is either in instalments as work progresses or in full on completion, paid to the contractor directly or through the applicant, and where the applicant or a relative does the work the council will normally only accept invoices for materials or services bought.
- very strong RN-DMB7DI
GOV.UK
Sets out that councils may charge a second homes premium of up to 2 times the normal Council Tax, and an empty home premium once a property has been empty for a year, rising to up to 4 times the normal bill after 10 years empty. Both premiums can be waived for up to 12 months where the property is being marketed, is in probate, or is undergoing major repairs, and derelict homes are exempt.
- very strong RN-PPKIQ6
Health and Safety Executive
HSE's task sheet library for building, maintenance and allied trades carrying out non-licensed work with asbestos. Includes equipment and method sheets EM0 to EM10 covering risk assessments and plans of work, what to do on accidental disturbance, information instruction and training, building and dismantling a mini-enclosure, using a class-H vacuum cleaner, wetting asbestos materials, PPE and RPE, damp rag cleaning of minor contamination, personal decontamination, disposal of asbestos waste, and a statement of cleanliness after textured coating removal. Task sheets A9 to A16, A35 and A36 cover non-licensed work with asbestos cement such as drilling, cleaning gutters, removing debris, cleaning weathered roofing and cladding, repairing damage, removing sheets and dismantling small structures. Sheets A26 to A29 cover textured coatings including drilling, inserting screws and removing a small area of about 1 square metre. Sheets A1 onward cover strictly controlled minor work on asbestos insulating board. This is the source for what a competent contractor should actually be doing on a small asbestos job.
- very strong RN-DWSXF9
Health and Safety Executive
The HSE leaflet a decorating or period-property note should cite on lead paint. Names the highest-risk activities as blast removal and burning of old lead paint, stripping old lead paint from doors and windows, hot cutting in demolition and dismantling, some painting of buildings, and soldering. Corrects a common misconception: lead is not absorbed through the skin, except as lead alkyls and lead naphthenate, so the routes of entry are breathing in lead dust, fume or vapour and swallowing lead by eating, drinking, smoking or nail-biting without washing hands and face first. Absorbed lead circulates in the blood and is stored mainly in the bones, where it can remain for years without symptoms. Early effects are headaches, tiredness, irritability, constipation, nausea, stomach pains, anaemia and weight loss; continued uncontrolled exposure can cause kidney damage, nerve and brain damage and infertility. Flags that an unborn child is at particular risk, especially in the early weeks before a pregnancy is known. Where exposure is significant as defined in law, the employer must supply protective clothing, launder it, measure airborne lead, supply respiratory protective equipment if the occupational exposure limit cannot be met, and arrange blood-lead medical surveillance.
- very strong RN-XZVPDF
Historic Environment Scotland
The most useful of the HES INFORM guides for a retrofit note, because it addresses the failure mode that insulation guides skip. Published 31 August 2020 by Historic Environment Scotland, INFORM Guide, 2.82 MB PDF, audiences Planners and Owners and Conservation and Heritage enthusiasts. Scope stated on the page: the causes and risks of condensation in traditional buildings, how to identify the source of condensation and how to reduce it, with a PARTICULAR FOCUS ON THE RISK OF INCREASED CONDENSATION AFTER THERMAL IMPROVEMENTS. That last point is the citable one: a public body stating that insulating a traditional building can increase condensation risk, which contradicts the common claim that insulation simply cures damp.
- very strong RN-MMEX1T
Historic Environment Scotland
A free public-body technical guide on damp in traditional buildings, and the accessible route to heritage-grade damp advice because Historic England blocks scripted fetches. Published 1 July 2007 by Historic Environment Scotland, publication type Technical, Advice and Guidance, INFORM Guide, audiences Planners and Owners and Conservation and Heritage enthusiasts, subjects Architecture and Climate Change, downloadable as a 288 KB PDF from the page. Scope stated on the page: recognising the causes and early signs of damp, and guidance on rectifying damp problems. Use it as the counterweight to damp-proofing sales literature, since HES guidance for solid-walled traditional buildings does not start from the chemical injected damp proof course assumption that dominates UK damp articles. Note the jurisdiction: it is Scottish guidance, so the building science transfers but any regulatory reference does not.
- very strong RN-HIUMHY
Historic Environment Scotland
The public-body source for why cement mortar on a traditional stone or soft brick wall causes decay, published 13 October 2016 by Historic Scotland (now HES), INFORM Guide, 377 KB PDF. Scope stated on the page: it focuses on the two commonly used mortar types, lime mortars and cement mortars, gives an overview of the physical properties of both, and indicates their technical suitability for use with traditional stone masonry, on the basis that selecting a suitable mortar for repair works matters for conservation and for PREVENTING MASONRY DECAY ASSOCIATED WITH THE USE OF INCOMPATIBLE MATERIALS. Pair it with the HES Short Guide: Lime Mortars in traditional buildings (1 March 2013, 2.16 MB PDF), which covers the history and use of lime mortars, sourcing of raw materials, preparation of mortars for repairs and how to recognise and reduce the risk of failure, and with the INFORM Guide: Hot-Mixed Lime Mortars (1 April 2015, 4.41 MB PDF), which explains how hot-mixed lime mortars differ from other lime mortars and how they are prepared on site.
- very strong RN-Z55Y2I
Historic Environment Scotland
Free HES guidance on how a traditional house was designed to breathe, useful whenever a note explains why blocking air bricks or sealing a chimney causes damp. Published 1 October 2008 by Historic Scotland (now HES), INFORM Guide, 653 KB PDF, audiences Planners and Owners and Conservation and Heritage enthusiasts. Scope stated on the page: the importance of ventilation in a traditionally built structure, then the various ways ventilation is provided, specifically SUB-FLOOR VENTILATION and CHIMNEYS, and issues surrounding masonry walls and plastered surfaces. Cite it alongside Approved Document F when a note covers suspended timber floors, chimney capping or draught-proofing an older house.
- very strong RN-3KFYDM
Historic Environment Scotland
SCOTLAND, and it contradicts England directly on one point: conservation area consent still exists in Scotland for the demolition of unlisted buildings, whereas England abolished it in 2013 and folded relevant demolition into planning permission. As at March 2026 Scotland had more than 46,500 listed building records and more than 600 conservation areas. Listed building consent must be applied for from the planning authority before any change that may affect the character of the property, and is almost certainly needed for an extension, structural alterations, partial or total demolition, internal alterations affecting character, and changing windows and doors; cleaning stonework, changing external paint colour and new signage may also need permission. The owner is responsible for repair and maintenance. Planning authorities may hold a character appraisal explaining a conservation area's designation. HES and the Scottish Government Building Standards Division jointly publish the Guide to Conversion of Traditional Buildings to reconcile building standards with conservation.
- very strong RN-RC60U0
Historic Environment Scotland
SCOTLAND. Listed buildings are designated by Historic Environment Scotland under the Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997, not England's 1990 Act, and the first statutory listing in Scotland dates to 1957. There are around 47,000 listed buildings in Scotland, graded in three categories A, B and C by relative importance according to period, style or building type; the categories are advisory and affect how the building is managed in the planning system. Scotland's grading letters differ from England's Grade I, II* and II. Unless the statutory address explicitly says otherwise, a listing always covers the interior as well as the exterior, extensions and any attached structures, and unattached structures within the curtilage are also listed. Each building has an online Listed Building Record whose Statutory Address is the legal part of the listing. Listed Building Consent may be required for change, and designation decisions follow the HES Designation Policy and Selection Guidance.
- very strong RN-LAXEYE
HM Revenue & Customs
Form VAT431C and notes for reclaiming VAT when converting an existing non-residential building into a dwelling. Published 5 December 2023, updated 25 January 2024. Requires the building regulations completion certificate, planning permission evidence and conversion plans; claims must be made within 6 months of completion (3 months for conversions completed before 5 December 2023). Postal claims go to BT&C VAT, HMRC, BX9 1WR and original documents should not be sent.
- very strong RN-TBNA5T
HM Revenue and Customs
The single most useful correction for any derelict-property or doer-upper note. HMRC states flatly that there is no tax relief and no lower rate of SDLT for uninhabitable properties, that a very high proportion of repayment claims in this area are wrong, and that buyers should be cautious about being misled by repayment agents. Being suitable for use as a dwelling is not the same as being ready for immediate occupation, and if a building retains the character or identity of a residential property it is wholly residential for SDLT despite disrepair. Lists the defects that expressly do not make a property unsuitable for use as a dwelling, even in combination: temporary removal of bathroom or kitchen facilities before sale, substantial repair or replacement of windows, floors, doors or roof, replacement boiler and pipework, unsafe electrical wiring, services switched off, pest infestation, damp proofing needed or plasterboard damage, flood damage, the presence of asbestos, and structural defects that can be repaired. Past use as a dwelling is a strong indicator of suitability. Cites the Court of Appeal in Amarjeet and Tajinder Mudan [2025] EWCA Civ 799 as now legally binding, upholding the Upper Tribunal at [2024] UKUT 307 (TCC). Manual published 19 March 2016, updated 1 September 2026.
- very strong RN-YP8R7O
HM Revenue and Customs
The five conditions that must all be met for a sale to be free of Capital Gains Tax under Private Residence Relief, two of which renovation choices can break. You must have one home and have lived in it as your main home for the whole period of ownership; you must not have let part of it out, though having a lodger does not count; you must not have used part of the home exclusively for business purposes, and using a room as a temporary or occasional office expressly does not count as exclusive business use; the grounds including all buildings must be less than 5,000 square metres, just over an acre; and you must not have bought it just to make a gain. Where all apply the relief is automatic and no tax is due; where any fails there may be tax to pay. Married couples and civil partners can only count one property as their main home at any one time. The exclusive-business-use point is what a dedicated garden office or converted consulting room can trigger.
- very strong RN-6V9WLL
HM Revenue and Customs
The duties that attach to anyone who pays subcontractors for construction work, which matters for a homeowner acting as their own main contractor and for judging whether a builder is operating properly. Registration as a contractor is required if you pay subcontractors to do construction work, or if your business does not do construction work but has spent more than 3 million pounds on construction in the 12 months since the first payment. The six rules are: register before taking on the first subcontractor; check whether the person should be employed rather than subcontracted, with a penalty if they should be an employee; verify with HMRC that subcontractors are registered with CIS; make deductions from payments and pay them to HMRC, the deductions counting as advance payments towards the subcontractor's tax and National Insurance; file monthly returns and keep full CIS records, with a penalty for failing to; and notify HMRC of changes to the business.
- very strong RN-WAUO83
Homes England
Establishes what the government's housing and regeneration agency actually does, which matters because renovation articles often name Homes England as a source of homeowner grants when its remit is different. Its stated functions are to use its powers, expertise, land, capital and influence to form partnerships bridging public and private sector delivery of new homes and regeneration; to champion sustainable, well-designed homes and places; and to support a more resilient, diverse and innovative housing sector by helping new market entrants and small and medium-sized enterprises grow, encouraging greater use of modern methods of construction, and promoting attention to building safety. It names its partners as local authorities, housebuilders, investors and developers, not individual homeowners, and it now also operates the National Housing Bank. Its strategic plan sets out its mission and strategic objectives.
- very strong RN-2E60JR
Ministry of Housing, Communities and Local Government
The shortest Approved Document, covering requirement D1 of Schedule 1 to the Building Regulations 2010: if insulating material is inserted into a cavity in a cavity wall, reasonable precautions must be taken to prevent the subsequent permeation of toxic fumes into any part of the building occupied by people. The stated performance is that formaldehyde fumes given off by urea formaldehyde (UF) foams must not reach occupied parts at an irritant concentration, and paragraph 1.1 permits formaldehyde-emitting insulants only where a continuous barrier minimises the passage of fumes to occupiable parts. Paragraph 1.2 sets five conditions for filling a cavity with UF foam: the inner leaf must be masonry (brick or block); suitability must be assessed beforehand to BS 8208-1:1985; the installer must hold or operate under a current Certificate of Registration of Assessed Capability; the material must comply with BS 5617:1985; and installation must follow BS 5618:1985. The 2010 amendments were regulation renumbering only and the 2013 amendments changed only the materials and workmanship guidance, with no change to Part D of Schedule 1.
- very strong RN-DSFI2B
Ministry of Housing, Communities and Local Government
This is the part of the Building Regulations that catches a whole-house renovation and is almost never mentioned in renovation guides. Requirement R1 of Schedule 1 applies to the erection of buildings AND to major renovation works to buildings, including existing dwellings, except where requirement RA1 (new dwellings) applies. Regulation 44C of the Building Regulations 2010 defines major renovation works as works at the end-user location encompassing structural modifications of the entire in-building physical infrastructure, or of a significant part of it. The duty is to provide in-building physical infrastructure from the service provider access point to the occupier network termination point capable of hosting copper, fibre or wireless delivering broadband speeds greater than 30 Mbps (paragraph 1.2); no cabling, equipment or anything beyond the network termination point is required (paragraph 1.4), and a multi-dwelling building undergoing major renovation must also have a common access point. Paragraph 1.5 exempts Schedule 2 Classes 2 to 7 work (sheds, domestic greenhouses, garages, conservatories and other small detached buildings with no sleeping accommodation), scheduled monuments under section 1 of the Ancient Monuments and Archaeological Areas Act 1979, listed buildings and buildings in conservation areas under sections 1 and 69 of the Planning (Listed Buildings and Conservation Areas) Act 1990 where compliance would unacceptably alter character or appearance, and major renovation works where the cost of compliance would be disproportionate to the benefit, which must be demonstrated to the building control body.
- very strong RN-M9H2XK
Ministry of Housing, Communities and Local Government
Non-statutory guidance published 13 July 2026 and updated 31 July 2026 when the PDF was replaced by an HTML version, applying to England, issued as an annex to the Awaab's Law Phase 2 guidance for social landlords. Its key date is that Phase 2 of Awaab's Law comes into effect on 30 November 2026, which extends the duty beyond the damp and mould and emergency hazards of Phase 1 to a wider set of hazards. The document sets the thresholds a social landlord uses to triage each hazard, which is the practical test of whether a reported defect starts the statutory repair clock. Useful for distinguishing what social tenants can require of a landlord from what a private homeowner or private tenant can, since Awaab's Law applies to the social rented sector.
- very strong RN-0RWQTJ
Ministry of Housing, Communities and Local Government
Statutory guidance published 23 June 2026, applying to England, issued under section 9 of the Housing Act 2004, which local authorities must have regard to when assessing hazards, and which replaces the previous operating guidance issued in 2006. The critical correction it carries is the hazard count: the HHSRS now covers 21 potential hazards, not the 29 in the 2006 guidance, and Part 2 contains a hazard profile for each of the 21. Confirms that a local authority must take enforcement action where it finds a category 1 hazard and has a power, not a duty, to enforce category 2 hazards. Issued in three parts: Part 1 an introductory guide (24 pages) on the theory, principles and assessment process; Part 2 a technical guide for assessors (174 pages) with the hazard profiles; Part 3 a supplementary guide to the hazard of fire and explosions (66 pages).
- very strong RN-6MMER0
Ministry of Housing, Communities and Local Government
The current NPPF, published 17 August 2026 (130 pages), replacing the framework first published March 2012 and revised July 2018, February 2019, July 2021, September 2023, December 2023 and December 2024, and also replacing Planning policy for traveller sites. The single most important thing about this edition for anyone citing it: the framework has been completely restructured from continuously numbered paragraphs into lettered and numbered policies, so every existing citation of an NPPF paragraph number is now stale. The chapters are Plan-making (PM1 to 17), Decision-making (DM1 to 10), Achieving sustainable development (S1 to 6), Climate change (CC1 to 3), Homes (HO1 to 13), Economy (E1 to 4), Town centres (TC1 to 4), Communications (CO1 to 2), Clean energy and water (W1 to 4), Minerals (M1 to 6), Making effective use of land (L1 to 3), Green Belt (GB1 to 8), Well-designed places (DP1 to 4), Transport (TR1 to 8), Healthy communities (HC1 to 8), Pollution (P1 to 6), Flood risk (F1 to 9), Natural environment (N1 to 6) and Historic environment (HE1 to 10). Policy GB7(1)(b) is the one homeowners meet: the reuse, extension, alteration or replacement of an existing building is not inappropriate development in the Green Belt provided the existing building is of permanent and substantial construction, is lawful in planning terms, and any extension or alteration will not result in a disproportionate increase in size compared to the original building, with footnote 40 defining the original building as the building that existed on 1 July 1948 or, if later, as it was originally built. Policy HE5(2)(c) now defines substantial harm expressly, as where a development proposal would seriously affect a key element of a heritage asset significance, and HE4(2) requires clear and convincing justification for any harm to a designated heritage asset.