house-extension.uk
Greater London

Romford house extensions

We design and build house extensions for homes in Romford and the surrounding Greater London area, with guide prices adjusted for the region.

  • Postcode districtsRM1, RM2, RM5, RM7, RM11, RM12
  • Price regionLondon (×1.3)
  • Planning rulesEngland
  • Site visitFree, no obligation
Two-storey rear extension on a brick semi-detached house with a hipped roof

Areas we cover around Romford

Site visits are available across Romford (RM1, RM2, RM5, RM7, RM11, RM12). Neighbouring towns we cover include Hornchurch (2 miles), Dagenham (2 miles), Becontree (3 miles), Ilford (5 miles), Barking (5 miles). Brentwood, in Essex, is roughly 6 miles from Romford and also on our list.

Approvals for an extension in Romford

In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.

In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.

In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.

Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.

Applications are decided by the local planning authority (your district, borough or unitary council).

Guide prices for Romford

Use these Romford guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.

Extension typeExample sizeStandard spec (inc VAT)
Orangery extensions16 m²£58,000 – £73,000
Wraparound extensions25 m²£74,500 – £94,500
Kitchen extensions20 m²£54,500 – £69,000
Side return extensions11 m²£34,000 – £43,000
Extensions over a garage12 m²£32,500 – £42,500
Single-storey rear extensions20 m²£53,000 – £68,000
Double-storey extensions32 m²£74,500 – £98,000

Which extension suits a Romford home?

In London, space is at a premium and gardens are often short, so side returns, wraparounds and carefully planned rear extensions tend to make the most of every metre.

The types we would usually look at first for a home in Romford are side return extensions, kitchen extensions and wraparound extensions, depending on the garden and how the house is laid out.

  1. Free site visit

    A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.

  2. Design and approvals

    We produce the drawings and structural design, and manage the approvals so they are in place before work starts.

  3. Fixed written price

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    The build is managed from start to finish, inspected at each stage and signed off on completion.

Questions about extensions in Romford

How much does an extension cost in Romford?

Using our London factor (×1.3), a standard-spec single-storey extension of 20 m² is a guide £53,000 to £68,000 including VAT, and a 32 m² two-storey extension £74,500 to £98,000. Your written price follows the survey.

Do you cover all of Romford?

Yes, including the surrounding parts of Greater London. Site visits are free and there is no obligation.

Do you handle building regulations?

Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.

Will my neighbours need to be told?

If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.

Book a free site visit in Romford

We will measure up, check the planning position and give you honest guide figures.

  • Free, no-obligation site visit
  • Planning route checked before you spend on drawings
  • Written price once the design is agreed
  • Building control sign-off at the end

Prefer to talk? Call 0800 088 6341 or .

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