The most thorough survey available - ideal for older homes, period properties, and complex buildings








If you're buying a property in the London Borough of Merton, a RICS Level 3 Building Survey is the most comprehensive inspection available. Unlike a basic valuation, our survey examines the property's condition in detail, identifying defects, potential structural issues, and the repairs that may be needed now or in the future. With average property prices in Merton reaching over £620,000, making an informed decision before you commit is essential.
Our team of RICS-registered surveyors operate throughout Merton, covering Wimbledon, Mitcham, Morden, Colliers Wood, Raynes Park, and the surrounding areas. We inspect properties of all types, from modern flats in new developments to Victorian and Edwardian terraced houses, giving you the confidence to proceed with your purchase or renegotiate based on our findings.
We have inspected homes across every corner of this borough, from period properties in the Wimbledon Village conservation area to modern apartments near South Wimbledon underground station. Our local experience means we understand exactly what to look for in Merton's diverse housing stock.

£621,670
Average House Price (Feb 2026)
£2,195,786
Detached Properties
£950,033
Semi-Detached Properties
£692,136
Terraced Properties
£414,043
Flats
7,000+
Properties at Flood Risk
~250
Statutory Listed Buildings
215,219
Borough Population
Merton's housing stock is remarkably diverse, spanning from charming period properties built in the mid-seventeenth century through to modern apartments in recent developments. This variety means that a thorough structural survey is particularly valuable. Properties in areas like Wimbledon Village, Cricket Green, and Hillside often feature listed buildings or sit within conservation areas, where understanding the condition of historic fabric is crucial before undertaking any renovation work. With approximately 250 statutory listed buildings across the borough, many properties will have specific considerations that a Level 3 survey addresses.
The underlying geology of Merton presents particular challenges for property owners. The borough sits on London Clay deposits, which are prone to shrink-swell movement as moisture levels change. This can lead to subsidence issues, particularly where trees are close to foundations. Our surveyors are familiar with these local ground conditions and will pay particular attention to signs of movement, cracks, and structural stress that may indicate foundation problems. Combined with the significant surface water flood risk affecting over 7,000 residential properties, particularly in low-lying areas near the River Wandle and Beverley Brook, a comprehensive survey helps you understand the full picture of your potential purchase.
Wimbledon brings additional considerations, with the annual Championships creating peak demand periods and influencing property values in the area. Properties in prestigious postcodes can command premium prices, making the investment in a detailed survey even more valuable. purchasing a family home in a quiet residential street or a period property with original features, our Level 3 survey provides the information you need to proceed with confidence.
The borough's housing market has seen significant activity in recent years, with property types ranging from the substantial detached homes in Wimbledon and Raynes Park to the more affordable terraced properties in Mitcham and Morden. This diversity means that every survey we undertake is unique, requiring our surveyors to apply their full expertise to identify property-specific issues.
Source: HM Land Registry / ONS 2026
Merton Council is undertaking a significant new build program to deliver affordable council homes across the borough. Several developments are underway, including 18 new council homes at Farm Road in Morden, a mixture of one and two-bedroom apartments and larger family homes. Additional sites at Elm Nursery Car Park in Mitcham and Raleigh Gardens Car Park are also part of this Phase One programme, with properties designed using 'Passive House' principles for energy efficiency and sustainability.
While new builds often come with the perception of being problem-free, they can still benefit from a Level 3 survey. Modern construction methods and materials may present different issues than traditional builds, and our surveyors are experienced in identifying defects in recently constructed properties. The Land at Canons, Madeira Road in Mitcham represents another significant new development where our services prove valuable for prospective buyers.
Even if you're purchasing a brand-new property, a Level 3 survey provides and ensures that any defects are identified before you complete the purchase. Given the premium prices commanded by new developments in this desirable borough, the investment in a thorough survey makes sound financial sense.
A RICS Level 3 Building Survey provides a thorough inspection of all accessible parts of the property. Our surveyors examine the roof structure, walls, floors, windows, doors, and built-in fixtures, identifying both obvious defects and hidden issues that could cost significantly to repair. The survey includes an assessment of the property's construction, materials, and condition, with clear ratings that help you understand the severity of any problems found.
Unlike simpler surveys, the Level 3 provides detailed advice on repairs, maintenance options, and the likely costs involved. This is particularly valuable for older properties where hidden defects are more common, or for properties that have been extended or altered over the years. In Merton, where many homes have been modified over decades, understanding the full scope of any work needed helps you budget accurately and avoid unexpected expenses after moving in.
Our report includes specific advice on urgent repairs that should be addressed immediately, as well as recommendations for future maintenance that will protect your investment over the long term. We also highlight any potential legal or planning issues, such as whether the property is in a conservation area or whether any alterations may require planning permission.

Choose your property type and select a convenient date for the survey. We'll confirm your appointment within hours. Our online booking system makes it simple to schedule your survey at a time that suits you.
A RICS-registered surveyor inspects the property thoroughly, examining all accessible areas and noting any defects or concerns. The inspection typically takes between 2-4 hours depending on property size. Our surveyor will move through every room, examine the roof space where accessible, and assess the condition of the exterior walls, foundations, and boundaries.
Within 3-5 working days, you receive a comprehensive written report with photographs, defect descriptions, and repair recommendations. The report is clear and easy to understand, with a traffic light rating system that quickly shows you which issues require urgent attention.
If you have questions about the report, our team is available to explain the findings and advise on next steps. We can help you understand what the results mean for your purchase decision and whether you should renegotiate with the seller.
In Merton, where properties range from period terraces in Mitcham to modern apartments in Wimbledon, a Level 3 survey is recommended for any property over 70 years old, all listed buildings, or any property where you're considering significant renovations. Given the average property value in Merton exceeding £620,000, the survey cost represents excellent value relative to the investment you're making.
Surface water flooding is a significant concern in parts of Merton, particularly in flat, low-lying areas and near the borough's watercourses. The River Wandle, Beverley Brook, Pyl Brook, and River Graveney all pose flood risks, with Raynes Park identified as an area of particularly high risk. Our surveyors will note any signs of previous flooding, water staining, or drainage issues that could indicate problems. Understanding these risks helps you make informed decisions about insurance requirements and potential property modifications. Merton Council, as the Lead Local Flood Authority, is actively developing strategies to manage flood risk from surface water, groundwater, and ordinary watercourses throughout the borough.
The presence of London Clay beneath much of Merton means that properties may be susceptible to ground movement. This shrink-swell activity is most pronounced where trees are present near foundations, as trees draw moisture from the soil. Our surveyors examine walls, ceilings, and external areas for signs of structural movement, including cracking patterns that can indicate subsidence or heave. Properties in areas with mature trees, such as those near Wimbledon Common, benefit particularly from this detailed assessment. The geology at Wimbledon Common specifically features the London Clay Formation, Claygate Member (a sandier London Clay), and the Black Park Gravel Member (oldest Thames Gravels), creating varied ground conditions across the borough.
For properties in conservation areas, which are scattered throughout Merton, there are additional planning constraints to consider. Any works to listed buildings require Listed Building Consent, and alterations to properties in conservation areas may need specific approval. Our survey reports highlight these considerations, helping you understand not just the current condition but also the future flexibility of the property. With properties in areas like Wimbledon Village and Cricket Green being particularly affected, where concentrations of listed buildings reach 22 and 29 respectively in these wards alone, this expertise is invaluable.
The borough's proximity to major transport links, including multiple tube and rail stations serving Wimbledon, Mitcham, Morden, and Raynes Park, makes it highly desirable for commuters. This demand drives property values but also means that properties may have been converted or modified to maximise rental potential, which our surveyors will assess carefully.
The Level 3 survey includes a comprehensive inspection of all accessible parts of the property, covering the roof, walls, floors, windows, doors, and utilities. You'll receive a detailed report with photographs, defect descriptions, and clear ratings. The report also includes advice on repairs, maintenance priorities, and estimated costs. It's the most thorough survey option available and is particularly suitable for older properties, listed buildings, and homes where you plan to make changes. Our surveyors will specifically look for issues common to Merton's housing stock, including signs of movement in properties built on London Clay and any flood damage history in susceptible areas like Raynes Park or near the River Wandle.
In the London Borough of Merton, RICS Level 3 Building Surveys typically cost between £750 and £1,500, depending on the property's size, age, and complexity. Larger properties, period homes, and those with unusual construction will be at the higher end of this range. A small flat in Mitcham or Morden might cost around £700-£900, while a large Victorian terrace in Wimbledon Village or a detached family home in Raynes Park could reach £1,200-£1,500. Given that the average property price in Merton exceeds £620,000, the survey cost represents a small percentage of your investment but provides essential information for one of the largest purchases you'll make.
While a Level 2 survey may be suitable for modern flats in good condition, a Level 3 survey is recommended if the flat is in an older building, has been significantly altered, or shows any signs of structural issues. Even as a leaseholder, understanding the condition of the building's common parts and any potential issues with the structure, roof, or foundations is valuable. Flats in converted Victorian or Edwardian properties throughout Mitcham and Wimbledon often reveal hidden defects that a detailed survey will uncover. Our surveyors can advise on the most appropriate survey type for your specific flat.
The on-site inspection typically takes between 2-4 hours, depending on the property size and complexity. A small flat in a modern block might take around 2 hours, while a large detached house in Wimbledon or a period property with multiple extensions could require 4 hours or more. Our surveyor will need access to all rooms, the roof space, and any outbuildings. You'll receive your written report within 3-5 working days of the survey date, though we can often expedite this if needed for time-sensitive purchases.
Yes, our surveyors are trained to identify signs of subsidence and structural movement. In Merton, where London Clay deposits are prevalent throughout most of the borough, this is particularly important. We look for cracking patterns, uneven floors, doors and windows that don't close properly, and signs of ground movement around the property. Our experience with properties in areas like Wimbledon Common, where the Claygate Member creates specific ground conditions, means we know exactly what patterns to watch for. If we identify potential subsidence, we'll recommend further investigation by a structural engineer and explain what this means for the property's long-term stability.
If significant defects are identified, the survey report will explain the issue, its severity, and recommended next steps. This might include obtaining quotes for repairs, negotiating with the seller to reduce the price, or requesting that certain repairs be completed before completion. In some cases, we may recommend a follow-up inspection by a structural engineer. The report gives you leverage to renegotiate or walk away, depending on your priorities. In Merton's competitive market, having this detailed information puts you in a stronger position to make informed decisions about your purchase.
Properties in Merton face several area-specific challenges that our surveyors are trained to identify. The London Clay beneath much of the borough causes foundation movement, particularly where mature trees are present near properties. Surface water flooding affects thousands of properties, especially near the River Wandle and Beverley Brook. Many properties are in conservation areas or are listed, requiring special consideration for any future works. Properties near Wimbledon Common may have additional issues related to the varied geology in that area. Our detailed survey will assess all these factors and provide you with a complete picture of the property's condition.
We can usually accommodate survey appointments within 3-5 working days of your booking, depending on availability. During peak periods such as the spring buying season or immediately after the Wimbledon Championships when the market typically sees increased activity, we recommend booking as early as possible. Our flexible scheduling means we can often arrange inspections to fit around your conveyancing timeline, and we work with all the major conveyancing firms active in the Merton area.
Our surveyors have extensive experience inspecting properties throughout Merton, from the Victorian terraces of Mitcham and Morden to the Edwardian houses in Raynes Park and the period properties in Wimbledon Village. We understand the local construction methods, the common defects found in different property types, and the specific environmental risks that affect properties in this area. This local knowledge means we know what to look for and can provide relevant, practical advice.
Whether your property is a new build in one of Merton's modern developments or a historic home with original features, our detailed approach ensures you have all the information needed to make an informed decision. With the borough's average property prices being among the highest in the UK, understanding exactly what you're buying before you commit is simply good practice. We've surveyed properties across every ward in Merton, from the bustling centre of Wimbledon to the quieter residential streets of Colliers Wood and Hillside, giving us unparalleled local knowledge to draw upon.

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The most thorough survey available - ideal for older homes, period properties, and complex buildings
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Homemove is a trading name of HM Haus Group Ltd (Company No. 13873779, registered in England & Wales). Homemove Mortgages Ltd (Company No. 15947693) is an Appointed Representative of TMG Direct Limited, trading as TMG Mortgage Network, which is authorised and regulated by the Financial Conduct Authority (FRN 786245). Homemove Mortgages Ltd is entered on the FCA Register as an Appointed Representative (FRN 1022429). You can check registrations at NewRegister or by calling 0800 111 6768.