LEASEHOLD / FLATS AND CONVERSIONS
A flat survey
can’t cover the whole building.
And it isn’t supposed to. Here is what a survey on a flat actually checks, what falls to the lease and management pack instead, and how to make sure nothing drops between the two.
Buying new-build? See snagging vs a home survey →THE ANSWER / READ THIS FIRST
The flat is surveyed. The building is a paperwork question.
A leaseholder doesn’t own the roof, the structure or the common parts, and can’t get invasive access to them — so a survey on a flat focuses on what you’re actually buying: the demise itself. Whether the wider building is well managed and financially sound is a separate question, answered by the lease and the management pack rather than a physical inspection.
01 / TWO CHECKS, TWO SOURCES
What the survey covers, and what it doesn’t.
- 01The flat’s own condition — finishes, damp, joinery, visible services and any alterations
- 02Evidence a defect originates outside the demise — flagged, even though it can’t be inspected directly
- 03Lease length, ground rent and service charge structure — a solicitor question, not a survey one
- 04Reserve fund, planned major works and building-level disputes — found in the management pack
02 / WHERE THE REAL RISK USUALLY SITS
The flat is fine.
The building might not be.
The costliest surprises in leasehold buying rarely come from the flat itself — they come from a major works bill for cladding remediation, roof replacement or lift refurbishment landing after completion because nobody read the management pack closely enough. A survey cannot substitute for that document review; treat both as required, not either-or.
03 / CONVERSIONS ADD A THIRD LAYER
Converted buildings
hide their history.
A period house split into flats can have original structure and fabric behind modern linings, inconsistent soundproofing, and shared responsibility for elements that were once a single owner’s problem. A surveyor experienced with conversions reads for exactly this — it is one of the reasons a Level 2, tailored to a converted or period flat, is worth more than a generic checklist inspection.
04 / HOW SURVEYCHOICE DOES IT
The right depth for the flat, plus the questions to hand your solicitor.
Your matched surveyor tailors the inspection to a flat or converted property and flags exactly what to raise with your legal adviser about the wider building. Get your price →
STRAIGHT ANSWERS
Before you ask.
01Can you get a full structural survey on a flat?+
You can survey the flat itself — its condition, fixtures, any alterations and visible issues — but a leaseholder generally can't get invasive access to the roof, structure or other flats. For serious concerns about the whole building, a specialist building survey commissioned by the freeholder or management company is the right tool, not an individual buyer's inspection.
02What does a survey on a flat actually check?+
The accessible condition of the flat itself: internal finishes, damp, window and door condition, visible services, and any alterations. It will also flag where a defect appears to originate outside the demise — a roof leak coming through a top-floor ceiling, for example — even though it can't inspect the roof directly.
03What should I check that a survey won't cover?+
The lease terms (length, ground rent, service charge structure), the management pack (accounts, planned major works, reserve fund), buildings insurance, and any history of disputes or unresolved defects at building level. These come from your solicitor and the seller's management pack, not from a property survey.
04Does a short lease affect whether I need a survey?+
It doesn't remove the need for one — a short lease is a legal and mortgage-ability question your solicitor and lender handle, separate from whether the flat itself is in good physical condition. You may well need both a survey and lease extension advice.
05Do new-build flats need a survey too?+
Snagging is the more relevant check for a brand-new flat's finishing and fittings. For an older or converted flat, a Level 2 Home Survey covers the flat's condition properly — see our separate guide on snagging versus a home survey if you're not sure which applies.