Home Surveys Level 3 — Building Survey
RICS Regulated Surveyors

Level 3 Building Survey

The most comprehensive inspection available — a full structural picture with defect causes, repair options and estimated costs.

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RICS Home Survey Standard

What is a Level 3 Survey?

The RICS Home Survey — Level 3 (formerly the Building Survey, sometimes called a full structural survey) is the most thorough survey RICS offers. It provides a detailed assessment of the property’s construction and condition, identifying both major and minor defects.

Unlike a Level 2 survey, the surveyor describes the cause of each defect, explains the options for repair, outlines the consequences of leaving issues unattended, and provides estimated costs of repairs where agreed. The surveyor follows the trail of any defect to understand its full extent.

A Level 3 survey is essential for older properties (typically pre-1940s), listed buildings, properties of non-standard or unusual construction, homes that have been significantly extended or altered, and any property you plan to renovate.

The Report

What's Included

All accessible parts of the building inspected
Major and minor faults identified
Cause of defects explained, with repair options
Estimated costs of repairs
Consequences of not addressing defects outlined
Damp, timber and drainage checks
Extensive technical information on construction and materials
Bespoke or RICS standard report format

Not included at this level

Market valuation (available as an add-on, +£100)
Opening up of concealed areas beyond the agreed scope
Specialist tests (drainage CCTV, electrical EICR) — available as add-ons
Suitability

Who is it For?

Older properties, typically built before 1940
Listed buildings and properties of non-standard construction
Homes that have been significantly extended or altered
Renovation projects and properties in poor condition
Starting from
£700 inc VAT
Final price based on property value — calculated instantly in your quote
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FAQs

Frequently Asked Questions — Level 3 Building Surveys

How much does a Level 3 Building Survey cost?
Our Level 3 Building Surveys start from £700 inc VAT. The price increases with property value due to the additional time required for a thorough inspection. Get an instant quote online.
What’s the difference between a Level 2 and a Level 3 survey?
A Level 3 Building Survey is the most comprehensive inspection available. Unlike the Level 2, it includes estimated repair costs, assessment of concealed and inaccessible areas, detailed structural analysis, and is the right choice for any property that is older, listed, unusual in construction, or that you plan to renovate.
How long does a Level 3 Building Survey take?
A Level 3 survey typically takes 3–6 hours depending on the size, age and complexity of the property. The detailed written report usually takes 5–7 working days to produce after the inspection.
Does a survey cover cladding and external wall systems?
Yes. Our surveyors inspect all visible external wall surfaces including cladding, render and brickwork. If the property has composite or rainscreen cladding, the surveyor will note the type and any visible concerns. For properties affected by the cladding crisis, we recommend a Level 3 Building Survey for the most thorough assessment. An EWS1 form is a separate specialist assessment — please contact us if you need guidance.
Does the survey include the garden and external areas?
The surveyor will inspect the garden boundaries, outbuildings, paths, driveways and drainage where visible. They will note any significant issues such as subsidence risk from trees, retaining wall defects, or Japanese knotweed. However, a standard survey does not include a full land or soil survey.
How does the age of the property affect which survey I need?
For properties built within the last 50 years in conventional construction, a Level 2 HomeBuyer Survey is usually appropriate. For older properties, listed buildings, thatched roofs, timber-framed buildings, properties built before 1900, or any non-standard construction, we strongly recommend a Level 3 Building Survey.
What does the surveyor check for damp?
The surveyor uses a calibrated electronic damp meter to test internal walls at ground floor level and any areas of concern. They check for rising damp, penetrating damp and condensation. If significant damp is found, the report will recommend further specialist investigation from a damp and timber specialist.
Will the survey check the roof?
The surveyor inspects the roof from ground level and from any accessible vantage point. Internal roof spaces are inspected where safely accessible.
What happens if serious problems are found?
If significant defects are identified, the report will clearly flag them with a condition rating of 3 (urgent). We recommend you use the findings to renegotiate the purchase price, request the seller makes repairs, or in some cases reconsider the purchase. Our team is available to discuss the findings and advise on next steps.
Is a survey worth it on a new build?
Yes. New build properties can have snagging issues, incomplete finishes and construction defects that a professional survey will identify. We recommend a Level 2 HomeBuyer Survey as the appropriate starting point for most new build purchasers.

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