Two-storey extensions in Emerson Park
Everything for a two-storey extension in Emerson Park, in one place: types, guide prices for London, the approval rules in England and how to get started.
Emerson Park at a glance
- Postcode districts
- RM11
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Harold Wood (1.3 miles), Hornchurch (1.4 miles), Upminster (1.7 miles), Romford (2 miles)
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover Emerson Park (RM11) and the places around it, including Harold Wood (1.3 miles), Hornchurch (1.4 miles) and Upminster.
Extensions available in Emerson Park
Two-storey rear extensions
For homes in Emerson Park: typical guide from £67,000.
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Two-storey side extensions
Design, approvals and build for Emerson Park homes. Guide from £103,500.
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Two-storey wraparound extensions
For homes in Emerson Park: typical guide from £144,500.
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Part single, part two-storey extensions
From £86,500 in Emerson Park. Free visit to firm it up.
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Extensions over a garage
Design, approvals and build for Emerson Park homes. Guide from £38,000.
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First-floor extensions
From £30,000 in Emerson Park. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
For homes in Emerson Park: typical guide from £67,000.
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Two-storey extensions for detached houses
Emerson Park guide price from £103,500, Standard spec.
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Kitchen extensions with bedrooms above
Our London guide starts at £67,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
For homes in Emerson Park: typical guide from £67,000 (plus en-suite).
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Emerson Park, with a rough idea of the approval route and cost for each.
Also available in Greater London
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Emerson Park
Emerson Park is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Emerson Park
Do you cover Emerson Park?
Yes. We cover Emerson Park (RM11) and the surrounding area, including Harold Wood and Hornchurch. The first site visit is free.
What does a two-storey extension cost in Emerson Park?
Using our London guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £67,000–£90,500 including VAT. An extension over a garage is about £38,000–£55,000.
Which other places near Emerson Park do you cover?
Everywhere around it, including Harold Wood (1.3 miles), Hornchurch (1.4 miles) and Upminster (1.7 miles), and the rest of Greater London.