London Builder Advice: Independent RICS Survey Review (£59)

Popular Areas in London

Looking for an independent builder near you in London to review a survey or quote? We translate jargon into pounds, room by room — from period terraces to high-rise leasehold flats — so you don't overpay in the capital.

We provide builder advice across London including Clapham, Brixton, Shoreditch, Hackney, Stratford, Canary Wharf, Wimbledon, Richmond, Islington, Camden, Tooting, Walthamstow, Peckham, Greenwich, Ealing, Battersea.

Chat to Your Builder gives independent property advice for buyers in London and across Greater London, from a working builder with nearly 30 years on site. We turn the findings in your RICS survey into plain-English priorities, likely repair-cost ranges and the right questions to ask next. Written review and call: £59.

Services include: RICS survey reviews, first-time buyer advice, renovation cost estimates and builder quote reviews.

Local building insights for London

What we look out for when we review a London survey, your photos and the paperwork. No site visit is needed: we work from the report your surveyor wrote after theirs. Where something needs a look in person, we tell you who to call.

• Victorian and Edwardian terraces across Clapham, Tooting and Walthamstow often have rear-extension cracking and original lath-and-plaster ceilings — we cost the realistic repair list before you offer
• Ex-local-authority flats in Southwark, Lambeth and Hackney may carry post-Grenfell cladding, EWS1 and fire-door obligations — we explain the service-charge impact in plain English
• Basement and lower-ground conversions across Chelsea, Islington and Camden need proper tanking, sump pumps and party-wall awards — we flag what’s missing
• Loft conversions and side returns are everywhere — we tell you which building-control, structural and party wall paperwork to ask for before completion
• Conservation areas (Hampstead, Greenwich, Bedford Park, Bloomsbury) restrict windows, render and roof finishes — we advise what you can and can’t change

Common property issues in London

Victorian conversion structural alterations

Walls knocked through in 1990s flat conversions often lack steel calcs or Building Regs completion. We see chimney breasts removed at first-floor level with no gallows brackets — a £6–12k retrofit if a future buyer's surveyor flags it.

Section 20 major works exposure

Leaseholders can be billed tens of thousands for roof, lift or window works decided after exchange. Always ask for the last 3 years of service-charge accounts and any Section 20 consultation notices in progress — not just the headline charge.

Cladding and EWS1 status

Mid-rise blocks built 1995–2018 may still need remediation. An A1/B1 EWS1 is fine; B2 means the building has combustible cladding and your mortgage offer can collapse. Check the form, not the agent's reassurance.

Basement and lightwell damp

Garden-flat kitchens extended into the rear lightwell often rely on tanking that has failed. Look for fresh paint at skirting level and ask when the tanking was installed — most systems are warrantied 10–20 years.

Realistic renovation costs in London

Job	Typical cost	Worth knowing
Full flat rewire (2-bed conversion)	£5,500 – £9,000	London labour premium; add for ornate cornicing reinstatement.
New kitchen, mid-spec	£12,000 – £22,000	Building management approval often needed for waste re-routing.
Bathroom refit with waterproofing	£7,000 – £14,000	Leasehold flats: leak risk is on you — overspec the tanking.
Single-storey rear extension (4m)	£55,000 – £95,000	Excludes party wall awards (£1,500–£3,000 per neighbour).
Loft conversion (dormer)	£60,000 – £110,000	Add £4–8k if steels need craning through the front.

Planning quirks that catch buyers out

• Most inner-London boroughs have Article 4 directions removing permitted development rights in conservation areas — even rooflights can need consent.
• Party Wall Act notices are non-negotiable for any work on a shared wall; budget £1,500–£3,000 per adjoining owner if surveyors are appointed.
• Basement extensions face borough-specific caps (Kensington & Chelsea, Westminster, Camden all differ) — check the local plan before offering on a property marketed with 'basement potential'.
• Listed buildings need Listed Building Consent for internal as well as external changes — including replacement boilers in some cases.

London property is too expensive to buy on a surveyor's hedged wording alone. A short call with an independent builder before exchange can turn 'evidence of historic movement' into a clear decision: proceed, renegotiate, or walk.

Victorian and Edwardian survey findings in London

Most of London’s terraced streets went up between the 1860s and the First World War, so a survey on a London house or conversion usually has a long list of findings. That’s normal for the age. These are the ones that come up most, with typical cost ranges from our cost guides. They are ranges, not quotes, and London jobs tend to sit towards the upper end because of labour, access and scaffolding.

• Roof coverings near the end of their life: typically £8,000 to £18,000 for a re-roof; often repairs buy a few years.
• Chimney stacks and flashings: typically £900 to £3,500 to repoint and reflash, £2,200 to £6,000 to rebuild.
• Damp in solid walls: usually high ground levels, blocked air bricks, leaking gutters or cement render. Penetrating damp typically £900 to £5,000.
• Cement pointing on soft brick: repointing typically £1,800 to £7,000.
• Cracks at bays and rear additions: often old and stable, sometimes one to monitor. London Clay and nearby trees can cause seasonal movement.
• Removed chimney breasts and knocked-through rooms: the question is sign-off and support. Missing sign-off typically £800 to £6,000 to resolve.
• Old wiring and sash windows: a full rewire typically £6,000 to £12,000; sashes can often be repaired rather than replaced.

More detail in Victorian house survey in London: what the findings usually cost and survey red flags ranked by repair cost.