Buying a flat is the most common first property purchase in London, and a survey is one of the most commonly skipped steps in the process. The reasoning buyers give is usually some version of the same thing: the building is managed, so surely someone else is responsible for it. That logic misses the point of why a flat survey is worth commissioning in the first place.
A RICS Level 2 survey on a leasehold flat is not a survey of the whole building. It’s an assessment of the specific unit you are purchasing — the part that becomes your responsibility as the incoming leaseholder. What happens within the walls of your flat, and what enters those walls from outside, is largely your problem once you exchange. A survey tells you what you’re inheriting before you’re legally committed to it.
Somerset & Sinclair is a RICS-regulated chartered surveying firm based in Covent Garden, London. We carry out Level 2 surveys on flats across Greater London and the Home Counties, including purpose-built blocks, ex-council properties, and converted period buildings. This guide covers what a Level 2 survey on a flat actually examines, what it doesn’t, and why the distinction between flat types matters when commissioning a survey.
What Does a Level 2 Survey Cover on a Flat?
A RICS Level 2 survey on a flat is a professional visual inspection of all accessible and visible elements within and immediately relating to the demised property. The surveyor works through a standardised inspection using the RICS condition rating system, assigning every element a rating of one, two, or three. Rating one means no action required. Rating two means repairs or maintenance are needed but not urgently. Rating three flags serious defects requiring immediate specialist investigation.
What the Surveyor Examines
The inspection covers the internal fabric of the flat and any elements that fall within the leaseholder’s responsibility. This typically includes:
- Internal walls, ceilings, and floors
- Windows and external doors within the demised area
- Bathroom and kitchen fixtures where visible
- Signs of damp, condensation, and water ingress from adjacent or upper properties
- The condition of services within the flat where visible, including pipework and electrical installations
- Any communal areas that the surveyor can observe from the property
Where water ingress has occurred from a roof or a flat above, this is noted and flagged. The surveyor will recommend further investigation where the source of moisture appears to be external to the flat’s demise.
What the Survey Does Not Cover
The survey does not extend to the fabric of the building as a whole. The roof, external envelope, foundations, communal areas, and structure of the block are the responsibility of the freeholder or management company, not the individual leaseholder. The surveyor will comment on what can be seen from the flat’s windows and entrance, but a full assessment of the building’s external condition falls outside the scope of a standard flat survey.
If you have concerns about the building’s overall condition, it is worth requesting recent service charge accounts and any major works notices served on leaseholders, which your solicitor should be obtaining as part of the conveyancing process. These can indicate whether significant expenditure is planned that will fall to you as the incoming leaseholder.
RICS guidance on leasehold property
Purpose Built Flats — What to Expect From the Survey
Purpose-built residential blocks are the most straightforward flat type to survey. They tend to be constructed using consistent materials throughout, they haven’t been converted from a different use, and the demise of each individual flat is usually well-defined in the lease.
Older Purpose-Built Blocks (Pre-1980s)
Blocks built in the 1960s and 1970s in particular can present specific issues. Concrete construction common to that era can suffer from carbonation over time, which affects the corrosion protection of steel reinforcement. Flat roofs on blocks of this age may be reaching or past the end of their serviceable life. Services, including communal heating systems and electrical installations, can be outdated. These issues affect the building as a whole rather than your specific flat, but they have implications for service charges and for the ease of obtaining a mortgage.
Modern Purpose-Built Blocks
More recently constructed blocks generally present fewer structural concerns at the unit level, but they carry their own survey considerations. Where the block is still within its warranty period, the surveyor will note any defects that should be raised with the developer under the warranty scheme. Issues with sound transmission between units, inadequate ventilation in bathrooms and kitchens, and the quality of finishes are all areas the Level 2 survey will examine.
Ex-Council Flats — Additional Considerations
Ex-local authority flats, often referred to as ex-council properties, are one of the most common flat types available to buyers in London. They’re generally sold on long leases granted when the original tenant exercised their right to buy, and they sit within larger blocks that remain predominantly in social housing or mixed-tenure ownership.
The Survey Scope Stays the Same
The survey of an ex-council flat covers the same elements as any other leasehold flat — the internal condition of the unit within the demised area. The surveyor will assess the flat’s fabric, look for signs of damp and water ingress, examine visible services, and check windows and doors where these fall within the leaseholder’s responsibility.
What Makes Ex-Council Properties Different
The main additional considerations for ex-council flats relate to the building rather than the individual unit, and these fall outside the survey’s scope. Construction type is one of the most significant. Many ex-council blocks in London were built using non-standard methods, including large panel system construction, which has specific structural and regulatory implications. A surveyor will note if the block appears to be of non-standard construction based on what can be observed from the flat, but a detailed assessment of the block’s structural system is a specialist matter.
Mortgage lenders also apply specific restrictions to certain types of ex-council construction. Properties in blocks above a certain height, or built using specific construction types, can be difficult to mortgage or may require specialist lenders. This is worth confirming with your mortgage broker before commissioning a survey, as the survey itself does not address mortgage lender restrictions.
UK Finance guidance on property types and mortgage lending
Leasehold Considerations Your Solicitor Should Be Covering
A survey examines the physical condition of the flat. It does not cover legal matters, and there are several leasehold-specific issues that fall within your solicitor’s scope rather than the surveyor’s.
The length of the remaining lease is one of the most significant. Leases below 80 years remaining become increasingly difficult to mortgage and expensive to extend. Service charge history and accounts should be reviewed to understand what has been spent on the building and what is planned. Any major works notices served on leaseholders indicate upcoming expenditure that you will inherit as the buyer. Ground rent terms matter too, particularly for leases granted before the Leasehold Reform (Ground Rent) Act 2022, which banned ground rent escalation clauses on new leases but left existing leases in place.
Common issues found in homebuyer surveys
Conclusion
A homebuyer survey on a purpose-built flat, an ex-council property, or any other leasehold flat assesses what matters most: the condition of the specific unit you’re buying. The building’s wider condition is a separate matter handled through the conveyancing process, but the survey gives you the independent professional assessment of your flat that no amount of due diligence on the lease can replace.
If you’re buying a flat in London and want to discuss whether a Level 2 survey is right for your property, call us on 020 4587 3343 or email info@somersetsinclair.co.uk. Somerset & Sinclair carries out RICS Level 2 surveys on flats across Greater London and the Home Counties.
FREQUENTLY ASKED QUESTION
Frequently Asked Questions
Do I need a homebuyer survey for a purpose-built flat?
Yes. A homebuyer survey on a purpose-built flat assesses the condition of the individual unit you are purchasing, which is the part that becomes your responsibility as the incoming leaseholder. The building’s common areas and structure are the freeholder’s or management company’s responsibility, but defects within your flat are yours from the point of completion. A survey before exchange gives you the information to make an informed decision or to negotiate on the basis of what’s found.
What does a Level 2 survey cover on a leasehold flat?
A RICS Level 2 survey on a leasehold flat covers all accessible and visible elements within the flat’s demised area. This includes internal walls, ceilings, and floors, windows and external doors where these fall within the lease, signs of damp and water ingress from adjacent or upper properties, the condition of visible services, and bathroom and kitchen fixtures where accessible. Every element is assigned a condition rating of one, two, or three using the RICS traffic light system.
Does a Level 2 survey cover the whole building or just the flat?
A Level 2 survey on a leasehold flat covers the specific unit being purchased, not the building as a whole. The roof, external walls, foundations, and communal areas are the freeholder’s or management company’s responsibility and fall outside the individual leaseholder’s demise. The surveyor will comment on what can be observed from the flat, including any visible signs of building-level issues, but a full assessment of the building’s condition is a separate matter.
What are the common issues found in a survey of a purpose-built flat?
Common findings in purpose-built flat surveys include damp and water ingress from adjacent or upper flats, condensation in bathrooms and kitchens with inadequate ventilation, defective windows or doors where these are the leaseholder’s responsibility, and the condition of visible services such as pipework and electrical installations. In older blocks, issues relating to the building’s services, construction type, or roof can also affect the flat indirectly through service charges and major works notices.
Should I get a survey on an ex-council flat?
Yes. A survey on an ex-council flat assesses the internal condition of the unit in the same way as any other leasehold property. Ex-council properties can present specific considerations relating to construction type, which may have implications for mortgage lending and structural matters at the building level. The survey covers the flat itself; the building’s construction type and any mortgage lender restrictions should be confirmed with your solicitor and mortgage broker separately.
What is the difference between a survey for a flat and a survey for a house?
The scope of a flat survey is largely limited to the demised area of the individual unit, whereas a survey for a freehold house covers the whole building including the roof, external structure, and grounds. A flat survey focuses on internal condition, water ingress from neighbouring properties, and visible services within the flat. Issues relating to the building as a whole, such as the roof, external envelope, or communal services, fall outside the flat leaseholder’s demise and are therefore outside the survey’s scope.
Can a flat survey identify damp from the flat above?
Yes. Identifying water ingress from adjacent or upper properties is one of the key elements of a flat survey. The surveyor uses a moisture meter to check wall and floor readings throughout the flat, and elevated readings consistent with penetrating damp from above or alongside will be noted with a condition rating. The report will recommend specialist investigation to confirm the source if the origin is not clear from the inspection.
Does a Level 2 survey flag service charge or lease issues?
No. The Level 2 survey assesses the physical condition of the flat. Lease terms, service charge history, major works notices, ground rent provisions, and the remaining lease length are all legal and financial matters that fall within your solicitor’s scope during the conveyancing process. The survey and the conveyancing are separate processes, and both are needed to build a complete picture before exchange.
How much does a RICS survey on a flat cost in London?
A RICS Level 2 survey on a standard one or two-bedroom flat in London typically starts from around £400 to £500, with fees rising for larger or more complex properties. At Somerset & Sinclair, your fee is confirmed before you book with no additions after the fact. Contact us with details of the property and we’ll provide a clear quote.
Is a Level 2 survey enough for an ex-council flat?
A Level 2 survey is appropriate for the internal assessment of an ex-council flat in the same way as any other leasehold property. Where the block is of non-standard construction, such as large panel system or concrete frame, this may have implications at the building level that the survey will note but not fully investigate. The survey of the flat itself is an important and valuable step; decisions about the building’s construction type and any mortgage lender requirements should be confirmed separately.
Do I need a survey on a new-build flat?
Yes, a survey is still worth commissioning on a new-build flat, though it looks different in practice. For a flat within its developer’s warranty period, a snagging inspection is often more appropriate than a full Level 2 survey. This focuses on defects and finishes that the developer should address under the warranty. For a flat that is newly built but where the warranty has expired or you have concerns, a Level 2 survey is the appropriate instruction. We can advise on the right approach before you book.
How do I book a RICS survey on a flat in London?
Contact Somerset & Sinclair by phone on 020 4587 3343, by email at info@somersetsinclair.co.uk, or through the website at somersetsinclair.co.uk. We’ll discuss the property with you, confirm the right survey level, and provide a clear fee before you commit. We carry out RICS Level 2 surveys on flats across Greater London and the Home Counties. We’re available Monday to Saturday 9am to 5:30pm and Sunday 10:30am to 4:30pm.
