The complete guide to property surveys

Key takeaways

• A property survey is an independent inspection of a home's condition, separate from the mortgage valuation your lender arranges.
• There are three main RICS Home Survey levels: Level 1, Level 2 and Level 3, each appropriate to different property types and ages.
• Costs typically range from around £400 for a basic report to £1,500 or more for a full building survey on a larger or older home.
• Common issues surveyors flag include damp, roof defects, movement or cracking, and outdated electrics.
• Survey findings can be used to renegotiate price, request repairs, or in some cases walk away from a purchase entirely.
• A poor survey result can affect your mortgage offer and, in certain circumstances, your buildings insurance.

Buying a home is an exciting milestone, but it can also feel overwhelming. Once your offer is accepted, you are suddenly faced with unfamiliar terms such as Level 2 and Level 3 surveys, retentions and snagging.

This guide explains what property surveys involve, the different options available and how the findings can influence your next steps. Whether you are buying your first home or have moved several times before, understanding the survey process can help you avoid unexpected costs and unnecessary stress later on.

Disclaimer: This guide mainly covers the home-buying process in England and Wales. Scotland has a different system, where sellers generally provide a Home Report that includes a Single Survey.

What is a property survey?

A property survey is an independent, professional inspection of a home's structural and physical condition, carried out by a qualified surveyor. It identifies defects, risks and maintenance issues that aren't obvious during a standard viewing.

Unlike a mortgage valuation, which only tells your lender what the property is worth for lending purposes, a survey is commissioned by you, the buyer, and works entirely in your interest. It looks past the surface: roof spaces, damp readings, structural movement, drainage and more, depending on the level of survey chosen.

Pro tip: Read our survey vs mortgage valuation guide for a more detailed explanation of the key differences. A mortgage valuation is different from a property survey. Your lender arranges it to check that the property provides suitable security for the mortgage, rather than to assess its condition for you as the buyer. It may not identify defects such as damp, roof problems or other maintenance issues.

The RICS Home Survey Standard sets out three levels of survey and applies to residential property surveys carried out by RICS members and regulated firms across the UK. Introduced in 2021, it was designed to improve consistency and make it easier for buyers to understand the different levels of survey available.

What types of property survey are available in the UK?

There are three main RICS Home Survey levels: Level 1, Level 2 and Level 3. Level 2 was previously commonly known as a Homebuyer Report, while Level 3 is often referred to as a Building Survey. Each offers a different depth of inspection, suited to different property types and budgets.

Here's how they compare at a glance.

What is a Level 1 survey (Condition Report)?

A Level 1 survey, or Condition Report, is the most basic RICS survey. It gives a simple traffic-light rating of the property's condition without offering advice, valuation or repair costs.

A Level 1 survey is usually the quickest and most affordable option. It is generally suited to newer, conventional properties that appear to be in good condition and gives an overview of any visible issues using a simple condition-rating system. However, it does not provide detailed advice on repairs or likely costs, so it is less suitable for older, unusual or visibly defective properties.

What is a Level 2 survey (Homebuyer Report)?

A Level 2 survey, known as the Homebuyer Report, is the most commonly chosen survey in the UK. It provides detailed condition ratings alongside practical advice on repairs, risks, and issues that could affect the property's value.

A Level 2 survey offers more detail than a Level 1 survey without going into the same depth as a Level 3 Building Survey. It usually includes a visual inspection of key areas such as the roof, walls, floors, windows and visible services, as well as checks for signs of damp. Some Level 2 surveys can also include a market valuation, giving you an additional view of the property’s value.

It is generally best suited to conventional properties of standard construction that appear to be in reasonable condition. Older, extensively altered, unusual or visibly defective properties may be more suitable for a Level 3 survey.

What is a Level 3 survey (Building Survey)?

A Level 3 survey, or Building Survey, is the most comprehensive RICS inspection available. It provides a detailed structural analysis, explains the likely causes of any defects found, and outlines repair options with indicative costs.

This is the survey to choose for period properties, such as Victorian houses, as well as listed buildings, homes with extensions or unusual construction, or any property you're planning to renovate. Surveyors spend longer on site, inspecting accessible areas like the loft and looking closely for structural movement, defects, and historic repairs. Unlike Level 1 and 2 surveys, a Building Survey does not include a market valuation as standard, since the focus is on condition rather than price.

Our guide to structural surveys for older homes explains when a more detailed Level 3 survey may be worthwhile.

Pro tip: If you are buying a period property, choose a surveyor with experience of buildings from that era and construction type. Someone familiar with older homes is more likely to recognise issues associated with features such as solid walls, traditional materials and historic alterations.

Are there other types of survey beyond the RICS levels?

Yes, specialist surveys are available to investigate specific concerns such as damp, structural movement, drainage problems or Japanese knotweed. These are often recommended when a general property survey identifies an issue that needs further investigation by a specialist.

These include damp and timber surveys (often from a specialist rather than a general surveyor), structural engineer reports for suspected subsidence or movement, drainage CCTV surveys, and asbestos surveys for pre-1990s properties undergoing renovation. If your Level 2 or Level 3 survey recommends "further investigation," it's generally not something to skip. It's the surveyor's way of saying they've seen enough of a red flag to want a specialist opinion before you commit.

Our 10 common house survey problems guide offers some insight on the most common issues found during house surveys.

How much does a property survey cost?

A property survey in the UK typically costs between £300 and £1,500, depending on the survey level chosen, the property's size and value, and its location. Larger or more complex properties cost more at every level.

These figures are approximate and can differ markedly depending on the region (London and the South East tend to sit at the higher end), property size, and individual surveying firms. A five-bedroom Victorian house will cost considerably more to survey than a two-bedroom new build flat, purely because there's more to inspect and report on.

Our guide to surveying costs offers a deep dive into the cost ranges for each survey type. It's worth comparing surveying quotes rather than accepting the first one, since pricing between firms for the same survey level can differ by a few hundred pounds.

Pro tip: Don’t base your decision on price alone. Compare what each quote includes, the surveyor’s experience with similar properties and the expected scope of the inspection before making your choice.

Do I need a survey if I'm getting a mortgage?

Technically no, a survey isn't a legal requirement, but it's strongly recommended even with a mortgage. Your lender's valuation protects their interests, not yours, so skipping a survey leaves you exposed to unknown defects.

Mortgage lenders arrange a basic valuation to confirm the property is adequate security for the loan. This is often confused with a survey because a surveyor may carry it out, but it's a different exercise. It usually involves a brief visit, sometimes just a drive-by or desktop valuation using comparable sales data, and the report isn't shared with you in detail — read our survey vs mortgage valuation for more insight.

What does a surveyor check during a property inspection?

A surveyor inspects the roof, walls, floors, windows, and visible services like plumbing, heating and electrics, looking for signs of damp, movement, decay, visible defects, safety concerns and alterations that may need further investigation.

A typical Level 2 or Level 3 inspection covers:

• The roof structure, coverings, chimneys and guttering, usually assessed from ground level with binoculars or from a loft hatch.
• External walls, render, brickwork and pointing, checking for cracks, bulging or damp penetration.
• Windows and doors, including frames, glazing and evidence of rot in timber.
• Floors and ceilings, checking for unevenness, sagging or signs of movement.
• The loft space, insulation levels and any evidence of past leaks or pest activity.
• Checking for signs of damp, with moisture readings taken where the surveyor considers them appropriate.
• Visible plumbing, heating and electrical installations, though surveyors don't test these systems in operation.
• External areas including drainage, boundaries, outbuildings and any signs of subsidence.

Surveyors don't move furniture, lift carpets, or access areas that aren't reasonably reachable, so a survey report reflects what is visible on the day, not a guarantee that nothing else is wrong. This is why a good surveyor often recommends further checks (like a damp specialist or drainage survey) rather than guessing causes they can't confirm. Our what does a house survey actually check guide is a good start to learn more about what happens during a survey.

Once you receive your report, learn how to read a home survey report with our guide which explains the condition ratings, common findings and what to look at first.

What are the most common issues found in a house survey?

The most frequently reported issues in UK property surveys are damp, roof defects, structural movement or cracking, outdated electrics, and problems with drainage or guttering. Older properties tend to show more of these than newer builds.

• Damp, particularly rising or penetrating damp, is often caused by a failed or missing damp-proof course, blocked airbricks, or high external ground levels against a wall.
• Roof issues, including slipped or missing tiles, worn flashing around chimneys, and sagging roof timbers
• Structural movement, shown through cracking in walls, which can range from harmless settlement to genuine subsidence demanding further investigation
• Timber decay and woodworm, particularly in older properties with original floor joists or roof timbers
• Outdated or unsafe electrics, especially in homes that haven't had a rewire in decades
• Drainage problems, including blocked or damaged pipework, which is increasingly checked via CCTV drainage surveys in older properties
• Japanese knotweed, where its presence and location may call for further investigation or a management plan and, in some circumstances, affect mortgage lending.

Not every defect is a deal-breaker. Most homes, even new ones, have some findings. The key is understanding the difference between routine maintenance and serious structural or safety concerns, which a good Level 2 or Level 3 report should help you do.

When should I book a survey during the home buying process?

You should book your survey as soon as your offer has been accepted and you've instructed a conveyancing solicitor, ideally within the first week or two, since delays here can hold up your entire transaction.

Property surveys are usually carried out after your offer has been accepted and before exchange of contracts, alongside the conveyancing process. This gives you time to consider any issues raised, renegotiate the price if necessary or decide not to proceed before you become legally committed. If you are buying at auction, you will usually need to arrange a survey before bidding, as the sale becomes legally binding once the auction ends.

It’s worth booking early because surveyors can be booked up several weeks in advance, while the wider conveyancing process can take several months. Our conveyancing timeline guide explains how the survey fits alongside the other stages of your purchase.

How can survey findings affect price negotiations?

Survey findings that reveal previously unknown defects can be used to renegotiate the purchase price, request the seller carries out repairs before completion, or ask for a reduction to cover future repair costs.

There is no set formula for renegotiating after a survey. If significant defects are identified, you may ask the seller to reduce the price, carry out repairs before completion or contribute towards the cost of the work. The seller is not obliged to agree, so the outcome will depend on the severity of the issue, the local property market and both parties’ willingness to negotiate. For more advice on approaching the seller and using repair estimates as evidence, read our guide to negotiating after a home survey.

In practice, surveyors report that damp, roofing and structural concerns are among the most common issues that lead buyers back to the negotiating table. It's worth approaching this conversation calmly and with evidence in hand, using the surveyor's exact wording and, where relevant, repair estimates from a tradesperson, rather than a vague sense that "something's wrong."

Pro tip: Before you renegotiate, try to get quotes for any repairs the survey has identified. This gives you a clearer idea of the costs involved and can help support your request to the seller.

Can a survey affect my mortgage offer?

Yes. If a serious issue comes to light, it can affect how much your lender is willing to lend. Problems such as subsidence, significant structural movement or major disrepair may lead the lender to ask for a specialist report, impose conditions, reduce the mortgage amount or hold back part of the loan until certain repairs are completed. In rare cases, the lender may decide to withdraw the mortgage offer altogether.

If your survey does throw up something serious, it's worth speaking to your mortgage broker or lender early rather than waiting to see what happens. Being upfront tends to smooth the process considerably compared to letting the lender discover it independently through their own valuation.

Does a property survey affect my home insurance?

A survey itself doesn't directly affect your insurance. Still, defects it uncovers, such as a history of subsidence or flood risk, may need to be declared to insurers and could affect premiums or availability of cover.

Buildings insurance is usually arranged from exchange of contracts, when you become legally responsible for the property. If your survey reveals issues such as past flooding, subsidence, underpinning or structural repairs, make sure you answer any related questions from the insurer fully and accurately. Providing incorrect or incomplete information could affect your cover or a future claim.

This is a genuinely useful reason to read your full survey report rather than skimming the summary, since it's the source you'll draw on when answering an insurer's questions honestly and accurately.

Do new build homes need a survey?

Yes, new build homes benefit from a snagging survey, which checks for construction defects and finishing faults that may not be identified in a standard RICS Level 1, Level 2 or Level 3 survey.

Most new-build homes are sold with a 10-year new home warranty and insurance policy, such as NHBC Buildmark or an equivalent scheme. The protection provided changes during the warranty period and does not replace the value of identifying snagging defects. A snagging survey, usually carried out just before or shortly after completion, creates a list of these issues for the developer to fix.

Pro tip: Worth reading our guide on what to do if a developer refuses to fix snags to understand what steps to take.

Do I need a survey for a leasehold flat?

Yes, a survey is just as important for a leasehold flat as a freehold house. However, it will focus on the flat's condition and any shared building elements rather than the lease terms, which your conveyancer reviews separately.

Surveyors on flats generally focus on the internal condition, and, where accessible, communal areas like roofs, external walls, and shared services if they form part of the building's overall structure. What a survey won't cover is the legal side: ground rent, service charges, remaining lease length, or the building's management arrangements. That's firmly the territory of your conveyancing solicitor, and it's one of several reasons buying a leasehold property tends to involve more legal legwork than a straightforward freehold purchase. Our freehold vs leasehold guide covers what to expect on that side of things.

How do I choose the right surveyor?

Choose an appropriately qualified RICS surveyor and check whether RICS regulates the surveying firm. Find someone with experience of the property's age, construction type and local area.

Here are some tips:

• Check they're listed on the RICS Find a Surveyor directory, which confirms regulation and qualifications.
• Ask about their experience with similar properties, particularly for period, listed or unusually constructed homes.
• Confirm they carry professional indemnity insurance, which protects you if something significant is missed.
• Compare at least two or three quotes, since pricing varies more than people expect for broadly the same service.
• Ask how long the inspection will take on site, since a rushed visit tends to produce a thinner report.

Comparing quotes from regulated surveyors doesn't need to mean hours of research and phone calls. Our surveying comparison service matches you with RICS-accredited surveyors local to the property, so you can compare pricing and turnaround times without chasing quotes individually.

What's the difference between a surveyor and a conveyancer?

A surveyor assesses the physical condition of a property, while a conveyancer handles the legal process of transferring ownership, checking things like title, boundaries, searches and the lease if applicable.

They work on entirely different sides of the same transaction. Your surveyor tells you whether the roof needs replacing; your conveyancer tells you whether the boundary lines match the title plan, whether there's a right of way across the garden, or whether local authority searches reveal a planned road scheme next door. Both are essential, and neither substitutes for the other.

If you haven't yet instructed a solicitor, Moving Compared enables you to compare quotes from licensed conveyancers regulated by the Council for Licensed Conveyancers and solicitors or law firms regulated by the Solicitors Regulation Authority.

Final thoughts

A property survey gives you a clearer picture of the home you are buying before you become legally committed. Choosing the right level of survey, understanding any issues it identifies and knowing what to do next can help you avoid unexpected costs and reduce stress later in the process.

Your survey is only one part of buying a property. Our complete guide to conveyancing explains what happens on the legal side, from instructing your conveyancer through to completion.

If you're at the stage of booking a survey, comparing RICS-regulated surveyors through Moving Compared takes the guesswork out of finding someone qualified, local, and fairly priced. And once your survey's done, our removals comparison tool and conveyancing comparison tool can help you keep the rest of your move moving just as smoothly.