Skip to content
Flettons SurveyorsFlettons Surveyors
blank
blank
Flettons Surveyors
blank
blank
  • Home
  • Services
    • ROOF REPORT (DRONE SURVEY)
    • HOMEBUYER REPORT (LEVEL 2)
    • BUILDING SURVEY (LEVEL 3)
    • BUILDING SURVEY (LEVEL 3+)
    • Sample Reports
    • Party Wall Matters
  • FAQ’s
  • Knowledge Base
    • PAST PROJECTS
    • SYSTEM-BUILT HOUSING
      • IN SITU CONCRETE HOUSES
      • METAL FRAMED HOUSES
      • TIMBER FRAMED HOUSES
      • PRECAST CONCRETE HOUSES
  • Contact Us
  • About us
RICS-Regulated · Building Survey

Level 3 Building Survey.
Buy with confidence.

Our most detailed structural survey — a thorough inspection of a property’s construction and condition, in plain English, ideal for older, larger or altered homes.

Get Instant Quote →View Sample Report
From £550
~10 daysTurnaround
RICSRegulated
Flettons Level 3 report on a phone
10 Summary of Condition Ratings
1No repair2Maintenance3Urgent repairNINot inspected
3Windows, Frames & CillsRepair required
2Rainwater GoodsMaintenance
1Roof StructureNo repair needed
3Damp Proof CourseRepair required
Google Reviews★★★★★5.0
What’s included

What a Level 3 Building Survey inspects

A thorough inspection of the structure, fabric and services — with clear advice on condition and the repairs that matter.

Detailed structural inspectionA thorough assessment of the structure and how the property is built.
Fabric & materialsWalls, roofs, floors and finishes — inside and out.
Damp, timber & movementWoodworm, rot, damp and signs of movement investigated.
Building servicesGas, electrical, heating, plumbing and drainage checked.
Older & altered homesIdeal for period, extended or non-standard properties.
Repairs & consequencesWhat’s wrong, why, and what happens if it’s ignored.
RICS Level 3 reportThe most comprehensive RICS survey report available.
~10-day turnaroundYour full report is typically delivered within about ten working days.
Overview

The Level 3 Building Survey

The Level 3 (Building) Survey is our most comprehensive RICS survey — a detailed inspection of a property’s construction and condition. It’s the right choice for older, larger, altered or unusual properties, or any home where you want the fullest picture before you buy.

We examine the structure, fabric and services in depth, explaining defects, their likely causes and the repairs they need.

Is it right for you?

Who the Level 3 survey suits

Ideal for period homes, properties that have been extended or altered, or buildings in variable condition. If you’re planning works or want maximum reassurance, this is the survey to choose.

For a conventional, modern home in reasonable condition, a Level 2 Homebuyer Survey may be all you need — we’re happy to advise.

Your report

What your report gives you

We inspect the structure, fabric and services in depth — then explain what we found, what it means, and what to do next.

You’ll also receive an email summary within 48 hours of the inspection, and you can always speak to your surveyor directly.

01

Defects & their causes. We report on defects and the most likely cause for each one we find.

02

How to put it right. We explain how to fix it — and what could happen if you don’t.

03

Who to call. We recommend where to find suitable contractors to carry out the work.

04

Clear & photo-rich. Detailed, photo-rich and easy to understand, written in plain English.

05

Traffic-light ratings. Every defect is rated with our simple traffic-light system, so priorities are clear.

Upgrade options

Optional add-ons

Tailor your Level 3 survey with any of these optional extras:

£300

Estimated repair costs

A breakdown of estimated costs and recommended trades for budgeting and negotiating.

£200

Aerial drone images

A closer look at roofs, chimneys and the surrounding area from above.

£150

Reinstatement valuation

The rebuild cost for insurance, so your investment is properly protected.

The fullest picture, priced up front

We take the time to inspect thoroughly and write your report in plain English. Level 3 Building Surveys start at £550, subject to the property.

~10working days
48 hrsemail summary
£550from,
Get your instant quote →Check our FAQsInstant online quote — no obligation.
Explore more

Need something else?

Take a look at our other RICS survey levels.

Level 2 Homebuyer Survey sample

Level 2 Homebuyer Survey

A clear condition report for conventional, modern homes.

Learn more →
Level 3+ Building Survey sample

Level 3+ Building Survey

Everything in Level 3, plus valuation, repair costs and aerial images.

Learn more →
Drone Roof Survey sample

Drone Roof Survey

A focused, aerial inspection of the roof, chimneys and coverings.

Learn more →

Useful Articles

  • Unit System 67 House
    TIMBER FRAMED HOUSES

    Unit System 67 Houses

    Byflettons TIMBER FRAMED HOUSES
    A Unit System 67 house is a non-traditional, timber-framed property built between 1967 and 1971 as part of the post-war housing programme. Understanding its construction, materials, and potential risks is essential when assessing condition, maintenance needs, and suitability for purchase.
  • The Enigmatic Unicorn House: A Comprehensive Guide for UK Home Buyers and Investors
    KNOWLEDGE BASE

    The Enigmatic Unicorn House: A Comprehensive Guide for UK Home Buyers and Investors

    Byflettons KNOWLEDGE BASE
    Understanding the Unicorn House The Unicorn House, a unique architectural marvel, stands as a testament to mid-20th-century British innovation in residential construction. Designed by A E Hadley and manufactured by Cruden Houses Ltd, these properties were…
  • The Trybo House: A Comprehensive Guide for UK Home Buyers and Investors
    KNOWLEDGE BASE

    The Trybo House: A Comprehensive Guide for UK Home Buyers and Investors

    Byflettons KNOWLEDGE BASE
    Understanding the Trybo House The Trybo house, a unique architectural marvel, stands as a testament to the innovative construction techniques of the 1960s. Manufactured by the Norwegian Log Construction Co. Ltd, these properties are a rare…
  • TRADA Type II Houses: A Comprehensive Guide for UK Home Buyers and Investors
    KNOWLEDGE BASE

    TRADA Type II Houses: A Comprehensive Guide for UK Home Buyers and Investors

    Byflettons KNOWLEDGE BASE
    Understanding the TRADA Type II House The TRADA Type II house, a distinctive system-built property, emerged during the 1970s as part of the UK’s post-war housing boom. Designed by the Timber Research and Development Association (TRADA),…
  • Unveiling the TRADA Type I House: A Comprehensive Guide for UK Home Buyers and Investors
    KNOWLEDGE BASE

    Unveiling the TRADA Type I House: A Comprehensive Guide for UK Home Buyers and Investors

    Byflettons KNOWLEDGE BASE
    Understanding the TRADA Type I House The TRADA Type I house, a unique architectural design, emerged during a transformative period in the UK’s housing history. Developed by the Timber Research and Development Association (TRADA), these homes…
  • Understanding the Terrapin House: A Comprehensive Guide for UK Home Buyers and Investors
    KNOWLEDGE BASE

    Understanding the Terrapin House: A Comprehensive Guide for UK Home Buyers and Investors

    Byflettons KNOWLEDGE BASE
    The Origins of the Terrapin House The Terrapin house, a unique architectural marvel, emerged during the 1960s, a period marked by innovation and experimentation in the construction industry. Manufactured by Terrapin Ltd, these homes were part…

Level 3 Building Survey – frequently asked questions

What is a RICS Level 3 Building Survey?

A RICS Level 3 Building Survey (formerly a Full Structural Survey) is the most detailed standard survey. It's a thorough inspection suited to older, larger, altered or unusual properties, describing defects, their likely cause, and the repairs and maintenance needed.

How much does a Level 3 Building Survey cost?

At Flettons, a RICS Level 3 Building Survey starts from £550. The exact price depends on the property's size, type, age and location – enter your details for an instant, tailored quote.

What does a Level 3 Building Survey include?

It is an in-depth inspection of the accessible parts of the property, describing the condition of each element, identifying defects and their likely cause, assessing structural movement and dampness, and setting out the repairs and ongoing maintenance required.

Level 2 or Level 3 – which do I need?

Choose a Level 2 Homebuyer Report for a modern, conventional property in reasonable condition, and a Level 3 Building Survey for an older, extended, larger or non-standard home. If you're unsure, we'll advise based on the property.

Do I need a Level 3 survey on a period or non-standard property?

Yes – older, listed, timber-framed, concrete or otherwise non-standard properties carry a higher risk of hidden defects, so a Level 3 Building Survey is strongly recommended. Flettons has particular expertise in period and non-standard construction.

How long does a Level 3 survey take and when do I get the report?

A Level 3 Building Survey is typically ready in around 10 working days, with an email summary of the key findings within 24 hours of the inspection. We keep you updated by email and SMS throughout.

Does a Level 3 survey include a valuation?

A Level 3 Building Survey focuses on the condition of the property. It is not the same as a mortgage valuation, which is carried out for the lender. If you need a market valuation, ask us and we'll advise.

Is a Level 3 Building Survey worth it?

Yes – for the right property it routinely pays for itself, giving you the facts to renegotiate, budget for repairs, or walk away. It protects what is usually your largest single investment.

Connect with us

Flettons Surveyors was founded with one clear purpose: to provide expert, high-quality advice to investors and homeowners, giving you the confidence to make fully informed decisions about your property.

contact us

Flettons Surveyors Ltd

Registered Office

20-22 Wenlock Road

London N1 7GU

Phone: 0330 043 4650

Opening Times

Monday 09:00 - 17:00

Tuesday 09:00 - 17:00

Wednesday 09:00 - 17:00

Thursday 09:00 - 17:00

Friday 09:00 - 17:00

Closed on Bank Holidays and Weekends
Flettons Surveyors is a trading name of Flettons Surveyors Ltd, a company registered in England and Wales. Registered number 16215569 
© 2025 Flettons Surveyors. All Rights Reserved. www.flettons.com | Privacy Policy | Site Map
blank
Flettons Surveyors
Manage Consent
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behaviour or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
  • Manage options
  • Manage services
  • Manage {vendor_count} vendors
  • Read more about these purposes
View preferences
  • {title}
  • {title}
  • {title}
Scroll to top Get Instant Quote →