Plaistow, London
Areas · Newham · East London
Plaistow · E6 · E7 · E12

House extensions in Plaistow

Plaistow sits in Newham, where the streets are dominated by 1930s suburban semis where a rear-and-side wraparound is the obvious move. The build that pays back most reliably here is a rear extension paired with a loft dormer, done under one scaffold and one contract.

Typical all-in (inc VAT)
£92k–£147k
Build rate per m²
£2700–£4125
On-site programme
12–20 weeks

What we build in Plaistow

Most Plaistow projects we scope fall into three buckets: a side-return or rear infill that fixes a dark galley kitchen, a full-width rear extension that opens the ground floor to the garden, and a rear-plus-loft package that adds a bedroom while the scaffold is already up. Victorian and Edwardian bay-fronted terraces, plus post-war and new-build estates.

Rear extensionLoft conversionHMO conversion

Extension costs in Plaistow

A mid-spec 25 m² extension in Plaistow typically lands between £92,000 and £147,000 all-in — that figure includes professional fees, planning and Building Control, party wall, a 12% contingency and VAT at 20%. Ex-VAT build rates run £2700–£4125 per m² depending on glazing, structural spans and kitchen spend.

ProjectSizePlaistow all-in
Side return infill15–20 m²£69k – £110k
Full-width rear20–30 m²£92k – £147k
Wraparound30–45 m²£133k – £213k
Double-storey rear40–60 m²£179k – £287k

Planning permission in Plaistow

One of the more permissive east-London boroughs for permitted-development rear extensions. Full applications go smoothly where design respects the terrace line.

Before you assume permitted development applies to your street, check whether your street falls inside a conservation area or an Article 4 direction — both are common in Newham and both remove PD rights for rear and side extensions. Our London planning guide walks through the tests in order.

Party wall and neighbours

Standard terrace = two party wall notices; typically resolved cooperatively.

Serve notice at least two months before you break ground. Budget £1,200–£2,400 per adjoining owner if they dissent and appoint their own surveyor — see the Party Wall Act guide.

Access, logistics and site set-up

Access is typically through the house, so expect dust protection, a boarded route and a skip permit from the council.

Every quote we issue for Plaistow prices skip permits, parking suspensions, protection and welfare explicitly in the preliminaries — so the number you sign is the number you pay.

Value added in Plaistow

Well-executed extensions here tend to return a healthy share of their cost at resale, particularly where they add a genuine third or fourth bedroom.

Typical programme

  1. Weeks 0–4Measured survey, design and structural calcs
  2. Weeks 4–12Planning or lawful development certificate, party wall notices
  3. Weeks 12–16Tender, builder selection and contract signing
  4. Weeks 16–34On site: groundworks, shell, watertight, first and second fix
  5. Week 35Building Control sign-off, snagging and handover

Full detail in the London extension timeline guide.

Why homeowners in Plaistow use us

  • KYB-verified builders only
  • Live Newham project experience
  • Itemised fixed-price specifications
  • Insurance, warranty and accreditation checks
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