Havering, London
Boroughs · East London
Havering · Outer London

House extensions in Havering

Outer-east planning at its most builder-friendly. Big plots and side access make Havering one of the cheapest per-sqm boroughs to extend in.

Typical all-in (inc VAT)
£85k–£135k
Cost vs London base
-5%
Postcodes covered
RM1 · RM2 · RM11 · RM12

Housing stock in Havering

1930s semis and detached homes, Gidea Park's Arts & Crafts conservation area.

Rear extensionWraparoundLoft

Planning in Havering

Straightforward planning outside Gidea Park and Emerson Park conservation zones. PD pathway is well-trodden.

Party Wall Act — what to expect

Semi and detached — often no party wall or a single notice.

Read the Party Wall etc. Act 1996 guide for full detail on notices, timelines and surveyor costs.

Typical costs in Havering

For a mid-spec 25 m² kitchen extension, all-in (professional fees, planning, party wall, VAT and 12% contingency), expect roughly £85,000 to £135,000. High-spec finishes, structural glazing or a full basement dig-out will push above the top of this range; a smaller side-return can come in under the bottom.

Cost tier
Outer London · -5% vs London average

Our calculator applies a 0.95× multiplier automatically for Havering projects. Get an itemised breakdown in 60 seconds.

Get your Havering estimate

Areas we cover in Havering

RM1RM2RM11RM12RM14RM3

Why homeowners in Havering pick us

  • KYB-verified builders only
  • Local Havering project experience
  • Fixed, itemised written quotes
  • Full insurance & warranty checks
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