Buying a listed building: which survey do you need?

For a listed building you almost always need a RICS Level 3 Building Survey, ideally from a surveyor with experience of historic buildings and traditional construction. Listed homes use materials and methods that behave very differently from modern houses, and inappropriate past repairs or unauthorised alterations can be costly and, in some cases, a legal problem for you as the new owner.

Key points

• A Level 3 Building Survey is the right level for most listed homes.
• Choose a surveyor who understands lime, timber frame, solid walls and other traditional construction.
• Unauthorised works can leave the new owner facing enforcement action, so consent history matters.
• Your surveyor looks at condition; your conveyancer checks listed building consents and planning history.

What does listing mean for a buyer?

In England, buildings of special architectural or historic interest are listed in three grades:

• Grade I - buildings of exceptional interest.
• Grade II* - particularly important buildings of more than special interest.
• Grade II - buildings of special interest. The large majority of listed homes are Grade II.

Wales has its own listing system run through Cadw with similar grades. Listing covers the whole building, inside and out, along with certain fixtures and structures within its curtilage. Most alterations that affect its character, including some internal work and repairs using different materials, need listed building consent from the local planning authority.

Why a Level 3 survey suits listed buildings

A Level 3 Building Survey is designed for older and more complex properties. For a listed home, it lets the surveyor:

• Inspect the structure and fabric in more depth, including roof timbers, floors and walls.
• Explain defects, their likely causes and appropriate repair approaches.
• Identify where previous repairs may have damaged the building, such as cement mortar or render on soft brick or stone.
• Flag works that appear to be recent alterations, so your conveyancer can check consents.

A Level 2 Home Survey is generally not designed for listed or unusual buildings. Our Level 2 vs Level 3 guide explains why depth matters here.

What should a surveyor look for in a listed building?

Experienced surveyors focus on the issues that commonly affect historic buildings:

• Moisture and breathability. Solid walls and traditional materials need to breathe. Modern cement renders, plastic paints and impervious floors can trap moisture and cause damp and decay.
• Timber. Beams, floor joists, roof structures and timber frames can suffer from rot and wood-boring insects, and earlier repairs may have been poor.
• Roofs. Thatch, handmade clay tiles, slate and lead all have their own lifespans and specialist repair needs.
• Structural movement. Many old buildings have moved over centuries. A surveyor will try to judge if movement is historic and stable or ongoing.
• Chimneys and stacks. Often tall, exposed and prone to weathering.
• Services. Older wiring, plumbing and heating are often retrofitted in ways that may need updating sensitively.

Choosing the right surveyor

Not every surveyor is comfortable with historic buildings. When booking, ask:

• How much experience they have with listed or period properties of this age and type.
• Whether they hold any building conservation accreditation or specialist training.
• Whether they know the local building traditions and materials.

Surveyors regulated by RICS or the RPSA both carry out residential surveys. Our guide to RICS vs RPSA surveyors explains the difference, but for listed buildings the individual's experience matters most.

Listed building consent: what your conveyancer checks

Your surveyor reports on the condition of the building. Checking whether past works had the right consent is your conveyancer's job, though a good surveyor will point out anything that looks like a recent alteration.

This matters because carrying out works to a listed building without consent, where consent is needed, is a criminal offence. Enforcement action can be taken against the current owner even when a previous owner did the work, and not knowing the building was listed is not a defence. Unlike most planning breaches, there is no time limit after which unauthorised listed building works become immune from enforcement.

Things to ask the seller for include:

• Listed building consents and planning permissions for any alterations.
• Building regulations sign-off where relevant.
• Any correspondence with the council's conservation officer.

Indemnity insurance is sometimes offered for missing consent. It may cover the cost of enforcement action but does not protect against prosecution, so get legal advice before relying on it.

Budgeting for a listed building

Listed homes often cost more to maintain. Repairs need to use appropriate materials and may need consent, and specialist trades can charge more. Your Level 3 report should help you understand:

• Which repairs are urgent (condition rating 3).
• Which are maintenance items you can plan for.
• Where specialist reports, such as a timber or structural engineer's report, are needed.

Ask the surveyor for a rough sense of costs or the type of specialist needed, so you can budget and, if necessary, renegotiate the price.

Buildings insurance and valuation

Listed buildings can be expensive to rebuild because like-for-like materials and craftsmanship may be required. If you want a valuation or a reinstatement cost for insurance, ask whether your surveyor can add one to the Level 3. Our valuation page explains the options.

Conservation areas and period homes

If the home is not listed but is in a conservation area, or is simply old, many of the same principles apply. See our guide to surveys for Victorian and period homes.

Get a Level 3 survey booked

A listed building can be a wonderful home, but it pays to know exactly what you are taking on. Book A Surveyor finds a local regulated independent surveyor, agrees a fixed price, liaises with the estate agent for access and takes payment, so you get a booked survey rather than a list of quotes. Mention that the property is listed when you request your survey. See how it works or get a fixed-price survey booked.

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