Demolishing a building: when you need permission first
Demolition is development. Most of it is permitted subject to a prior approval on method, but conservation areas, listed buildings and dwellings each work differently.
Demolition planning permission is required more often than people assume and less often than the paperwork suggests. Section 55(1A) of the Town and Country Planning Act 1990 includes demolition within building operations, so demolition is development. A national direction then takes certain descriptions of building outside that definition altogether, and Part 11 of Schedule 2 to the GPDO 2015 grants permitted development rights for most of the rest, subject to a prior approval on the method of demolition and the restoration of the site.
The exceptions are where the trouble is. Demolishing an unlisted building in a conservation area without permission is a criminal offence, and demolishing a listed building without consent is too.
When demolition is development and when it is not
Start by identifying the building. Small buildings, certain agricultural structures, gates, fences, walls below specified heights and some other descriptions are excluded from the definition of development by the national demolition direction, so their removal needs nothing at all.
Everything else is development, and for most buildings Part 11 Class B of the GPDO grants permitted development rights for the demolition itself. That right is conditional. Where demolition is not urgently required on safety grounds, you must apply to the council for a determination as to whether its prior approval is needed for the method of demolition and the proposed restoration of the site, and you must not begin before the council responds or the statutory period expires.
The right is also disapplied in several situations, including where the building is a dwellinghouse, where it adjoins a dwellinghouse, and where the building sits on land where the right has been withdrawn by direction. In those cases a full planning application is needed for the demolition, or the demolition forms part of the application for what replaces it.
There is a separate route worth knowing. Class ZA of Part 20 permits the demolition of certain vacant buildings and their replacement with new dwellings, subject to a detailed prior approval covering a long list of matters. It is tightly drawn and the conditions are exacting, so read the class in full before assuming it applies.
The prior approval route for method of demolition
Where prior approval applies, the application is narrow. The council is considering how you will take the building down and what the site will look like afterwards. It is not reconsidering whether the building should go.
Submit a method statement covering the sequence of demolition, the plant to be used, how the structure will be made safe at each stage, protection of adjoining buildings and the highway, dust and noise control, hours of working, and the arrangements for removing material from site.
The restoration element matters as much and is frequently thin. Say what the site will look like: level, cleared, capped, hoarded, seeded, or hard surfaced, with boundary treatment and any drainage left in a safe condition. A statement that says the site will be left tidy invites a condition you will later struggle to discharge.
Where the demolition is part of a redevelopment, the practical arrangements normally sit in a Construction Management Plan covering both phases together, which is easier for the officer and for you.
Conservation areas: why unlisted buildings still matter
This is the trap. Since the Enterprise and Regulatory Reform Act 2013 changes, demolition of an unlisted building in a conservation area is controlled through planning permission for what the legislation calls relevant demolition, and carrying it out without permission is a criminal offence under the Town and Country Planning Act 1990.
The test the council applies is whether the building makes a positive contribution to the character or appearance of the conservation area, and whether its loss is justified. A modern infill garage usually goes without argument. A Victorian outbuilding that forms part of the historic grain of a street does not.
Prepare a Heritage Statement that identifies the conservation area, describes its significance, assesses the contribution the building makes, and sets out the justification for removal along with the merits of the replacement. Councils will often condition that demolition may not begin until a contract for the redevelopment has been let, so that the site is not left as a gap.
Check for Article 4 directions too. Some cover demolition of specific structures such as boundary walls, chimney stacks and outbuildings within a conservation area.
Listed buildings and scheduled monuments
Demolition of a listed building, in whole or in part, requires listed building consent under the Planning (Listed Buildings and Conservation Areas) Act 1990, and that includes structures within the curtilage that were in place before 1 July 1948. Removing a rear extension from a listed house is demolition of part of a listed building.
The statutory duty on the decision maker is to have special regard to the desirability of preserving the building and its features of special architectural or historic interest. Total demolition of a listed building is granted very rarely, and the case has to address structural condition, the availability of alternative uses, the efforts made to find one, and the public benefits of the replacement.
Scheduled monuments are controlled separately under the Ancient Monuments and Archaeological Areas Act 1979, and scheduled monument consent comes from the Secretary of State rather than the council. Works to a scheduled monument without consent is a criminal offence.
Where a listed or locally listed building or a building of some age is coming down, expect a condition requiring a record of it before works begin.
Asbestos, party walls and site controls
Three separate regimes sit alongside planning and are commonly forgotten until the week before demolition.
Section 80 of the Building Act 1984 requires you to give notice to the local authority before demolishing most buildings, and the authority may serve a counter-notice imposing requirements about shoring adjoining buildings, sealing services, weatherproofing exposed surfaces and making good. This is a building control process, entirely separate from planning, and it has its own notice period.
Asbestos in any building predating the 2000 ban must be identified before demolition, through a refurbishment and demolition survey under the Control of Asbestos Regulations 2012. Licensed removal is required for higher-risk materials and the timescales are not short.
The Party Wall etc. Act 1996 applies where demolition affects a party structure or excavation is close to a neighbouring building. It requires notice, produces an award, and takes weeks. It is not a planning matter and the council will not enforce it.
Add the Construction (Design and Management) Regulations 2015, which put duties on the client from the outset. On a demolition project those duties are not a formality.
Recording buildings before they go
Where a building has heritage interest, the council will usually condition a record before demolition, prepared to the recognised recording levels used in England. Level 1 is a basic visual record and Level 4 is a full analytical record with measured drawings and documentary research.
Get the level agreed before commissioning, because the cost difference between levels is large and a report at the wrong level has to be redone. A Historic Building Recording at the specified level, deposited with the local historic environment record, discharges the condition. Councils normally expect a suitably qualified author, and professional review is strongly advised.
There is a second kind of record worth doing even where nothing is conditioned. A Pre-redevelopment Audit identifies materials and components that can be reused or recycled, which supports the waste and circular economy sections of a later application and reduces disposal costs.
Sequencing demolition with the replacement
The order in which you do things decides whether the site sits empty for two years.
- Establish the constraints: conservation area, listed status, Article 4 direction, protected species in the building, asbestos.
- Commission the ecology inspection early. Bats and nesting birds are protected, the survey seasons are limited, and finding a roost after the scaffold is up is expensive.
- Apply for permission for the redevelopment including the demolition, rather than demolishing first, unless you are certain the replacement will be approved.
- Serve the Building Act notice and start the party wall process in parallel with determination.
- Discharge any recording condition before works begin, since it will be worded that way.
- Demolish, then implement the restoration or the replacement as approved.
The most expensive mistake is demolishing before the replacement has permission. A cleared site has no fallback, no existing building to argue from, and nothing to bargain with if the council later refuses what you intended to build.
Enter your postcode on PlanScope to see which supporting documents a demolition and redevelopment scheme is likely to need.
This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.
Frequently asked questions
Do I need planning permission to demolish a building?
Demolition is development under section 55(1A) of the Town and Country Planning Act 1990, but a national direction excludes some descriptions of building, and Part 11 of the GPDO permits most other demolition subject to a prior approval on method and site restoration. Dwellinghouses, buildings adjoining dwellings and conservation areas are treated differently.
Can I demolish an unlisted building in a conservation area?
Not without planning permission. Demolition of an unlisted building in a conservation area is controlled as relevant demolition, and carrying it out without permission is a criminal offence. The council will assess whether the building contributes positively to the character of the area and whether its loss is justified.
What is a prior approval for demolition?
It is an application asking the council to determine whether its approval is needed for the method of demolition and the proposed restoration of the site. The council cannot reconsider whether the building should be demolished. You must not begin work before the council responds or the statutory period has passed.
Do I need to tell building control before demolishing?
Yes, for most buildings. Section 80 of the Building Act 1984 requires notice to the local authority, which may serve a counter-notice imposing requirements about shoring adjoining buildings, sealing services and making good exposed surfaces. This is separate from planning and has its own notice period, so allow time for it.
Do I need a bat survey before demolition?
Very often. Bats and nesting birds are legally protected, and older buildings, roof voids and outbuildings are common roosts. Commission an inspection early, because emergence surveys are restricted to the summer season and discovering a roost after work has started can halt the project and expose you to prosecution.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.