Enfield, London
Boroughs · North London
Enfield · Outer London

House extensions in Enfield

Enfield's suburban stock and side access make it one of London's most PD-friendly boroughs — often the fastest path from brief to breaking ground.

Typical all-in (inc VAT)
£90k–£145k
Cost vs London base
-2%
Postcodes covered
EN1 · EN2 · EN3 · N9

Housing stock in Enfield

1930s semis and detached homes with generous rear plots.

Rear extensionWraparoundLoft

Planning in Enfield

Straightforward permitted-development pathway for most rear extensions up to 6m. Prior approval is the common route rather than a full application.

Party Wall Act — what to expect

Semi-detached typology keeps party wall costs modest.

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

Typical costs in Enfield

For a mid-spec 25 m² kitchen extension, all-in (professional fees, planning, party wall, VAT and 12% contingency), expect roughly £90,000 to £145,000. 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 · -2% vs London average

Our calculator applies a 0.98× multiplier automatically for Enfield projects. Get an itemised breakdown in 60 seconds.

Get your Enfield estimate

Areas we cover in Enfield

EN1EN2EN3N9N13N14N18N21

Why homeowners in Enfield pick us

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