Do I need listed building consent for an extension?
Almost certainly. Historic Environment Scotland's guidance is that listed building consent is almost certainly needed for an extension, for structural alterations, for partial or total demolition, for internal alterations that affect the building's character, and for changing windows and doors. Consent is needed for any work that affects the character of the building as one of special architectural or historic interest.
Listing covers more than the front elevation. Unless the listing says otherwise, it covers the interior and exterior, later extensions and attached structures, and unattached structures within the curtilage, such as boundary walls or outbuildings. There are about 47,000 listed buildings in Scotland.
An extension to a listed house needs listed building consent from the council, usually planning permission too, and a Building Warrant. Listed building consent has no application fee. Doing the work without consent is a criminal offence.
What do the listing categories mean?
| Category | Meaning |
|---|---|
| A | Outstanding examples of a particular period, style or building type |
| B | Major examples of a particular period, style or building type |
| C | Representative examples of a period, style or building type |
The categories are advisory and have no separate legal status: the same consent rules apply to all three. They do affect how an application is handled. The council must consult Historic Environment Scotland (HES) on listed building consent applications for works to category A and B buildings, and on any application to demolish a listed building. Category C applications are decided by the council without that statutory consultation.
Which approvals does an extension to a listed home need?
| Approval | What it covers | Fee |
|---|---|---|
| Listed building consent | The effect on the building's special interest | No fee |
| Planning permission | Use, siting, scale and appearance, and effects on neighbours | £371 for a householder application (April 2026) |
| Building Warrant | Structure, fire, energy, ventilation and drainage | Set from the value of the work |
Permitted development rights are much more limited for listed buildings, so assume a householder planning application is needed alongside listed building consent. The two are usually submitted together with the same drawings. See planning fees and Building Warrant fees.
What makes an extension to a listed building acceptable?
Historic Environment Scotland's Managing Change in the Historic Environment: Extensions guidance sets out the principles councils use. In summary, an extension should:
- protect the character and appearance of the building;
- be subordinate in scale and form, and not dominate the original through its size, materials or position;
- sit on a secondary elevation, usually the rear or side, rather than overlaying a principal elevation;
- be designed to a high quality, in appropriate materials.
Contemporary design is not ruled out. The guidance accepts that a well-designed modern addition, which doesn't pretend to be part of the original, can affect the building's appearance less than a poor copy. New work can replicate, complement, defer to or contrast with the old, as long as it is clearly designed in response to it.
Councils also look closely at how much historic fabric is lost where the extension joins the building, at the effect on the interior plan, and at the setting, including gardens and views.
What if the house is in a conservation area but not listed?
Then you don't need listed building consent, but other controls apply. Permitted development rights for extensions are more limited in conservation areas, so most extensions need planning permission, and demolishing a building in a conservation area can need conservation area consent. The council will judge the extension on whether it preserves or enhances the character and appearance of the area. Councils publish conservation area appraisals that describe what they consider important.
What are the common mistakes?
- Assuming only the front of the building is protected, when the interior and curtilage are listed too.
- Designing a pastiche that copies the original, rather than a clearly designed addition.
- Removing more historic fabric than needed to make the connection.
- Starting enabling works, such as stripping out, before consent is granted.
- Treating conditions as a formality: details and samples often need approval before work starts.
- Leaving the Building Warrant until consent is granted, when the warrant details may need further listed building approval.
How do you apply for listed building consent?
- Check the listing. Look up the building on Historic Environment Scotland's portal for its category and listing description, and confirm with the council what the listing includes.
- Understand the building. A short statement of significance, explaining which parts of the building matter most and why, shapes a design that can be approved.
- Take pre-application advice. Talk to the council's conservation officer early. For category A and B buildings, HES may also give advice.
- Submit drawings that show the existing and proposed building, with details of junctions, materials and any historic fabric to be removed, and a design statement explaining the approach.
- Agree conditions. Consent often comes with conditions requiring samples of materials or details to be approved before work starts.
Listed building consent applications are decided by the planning authority, normally within the same two-month period as a local planning application. Allow longer where HES is consulted or details need to be negotiated.
What about the Building Warrant and energy standards?
The extension itself must meet the Building Standards, including the energy standards for new work. Where the work also alters the existing building, there is some flexibility to protect historic fabric, and the Scottish Government and HES publish guidance on balancing compliance with conservation, including a Guide to Conversion of Traditional Buildings updated in August 2026. Agree the approach to insulation, ventilation and damp management early: modern materials can trap moisture in traditional solid walls.
Is there any VAT relief on work to a listed building?
Not for alterations to a listed home. Until 1 October 2012, approved alterations to listed buildings could be zero-rated. That relief was removed, so building work on an extension to a listed house is now normally charged at the standard rate of VAT. Some other reliefs, such as the reduced rate for certain conversions and long-empty homes, can still apply in specific cases. Check with your builder and adviser.
What happens if you extend without consent?
Carrying out works that need listed building consent without it, or breaching its conditions, is a criminal offence under the Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997. On summary conviction the penalty can be up to six months' imprisonment, a fine of up to £50,000, or both, and on indictment up to two years or an unlimited fine. The council can also require the work to be reversed. Unauthorised works also cause problems when you sell, because buyers' solicitors will ask for the consents.
How we help
ED Design is an architectural design studio in Stirling. We design extensions and alterations to traditional and listed homes, prepare listed building consent and planning applications, and work with conservation officers to agree the details. See our extensions and renovations service and our work across Perth and Kinross and Stirling.
Sources: Historic Environment Scotland: listed building consent; Historic Environment Scotland: listed buildings; HES: designation policy, Annex 2; Historic Scotland: Managing Change in the Historic Environment, Extensions; Planning (Listed Building Consent and Conservation Area Consent Procedure) (Scotland) Regulations 2015, regulation 7; Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997, section 8; HMRC: approved alterations to protected buildings, changes from 1 October 2012; Scottish Government and HES: Guide to Conversion of Traditional Buildings. Last reviewed November 2026.
Questions
Do I need listed building consent for an extension in Scotland?
Almost certainly. Any work that affects the character of a listed building needs consent, and HES guidance lists extensions among the works that almost always do. You will usually need planning permission and a Building Warrant as well.
Is there a fee for listed building consent?
No. Listed building consent applications have no fee, although a planning application submitted alongside it does.
Can I build a modern extension on a listed building?
Often, yes. HES guidance accepts well-designed contemporary additions, provided they are subordinate, sit on a secondary elevation and use high-quality materials.
Who decides listed building consent in Scotland?
The planning authority. It must consult Historic Environment Scotland on applications for category A and B buildings and on any demolition.
Is VAT charged on an extension to a listed house?
Usually at the standard rate. The zero rate for approved alterations to listed buildings was removed on 1 October 2012.
General guidance for Scotland, not legal, tax, financial or planning advice for your project. Rules change, so check current official guidance and take advice specific to your site before acting.
