Two-storey extensions in Broadfield
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Broadfield.
Broadfield at a glance
- Postcode districts
- RH11
- Area
- West Sussex, England
- Price region
- South East England
- Nearest towns
- Crawley (1.5 miles), Horley (5.7 miles), Horsham (5.8 miles), Haywards Heath (8.2 miles)
- Distance to Crawley
- about 1.5 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.
Around Broadfield we also work in Crawley, Horley and Horsham, and across the rest of West Sussex. Postcode district in and near Broadfield: RH11.
Extensions available in Broadfield
Two-storey rear extensions
Our South East England guide starts at £61,500 for this type.
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Two-storey side extensions
Broadfield guide price from £94,500, Standard spec.
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Two-storey wraparound extensions
Broadfield guide price from £132,500, Standard spec.
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Part single, part two-storey extensions
From £79,000 in Broadfield. Free visit to firm it up.
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Extensions over a garage
From £34,500 in Broadfield. Free visit to firm it up.
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First-floor extensions
Design, approvals and build for Broadfield homes. Guide from £27,500.
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Two-storey extensions for semi-detached houses
For homes in Broadfield: typical guide from £61,500.
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Two-storey extensions for detached houses
For homes in Broadfield: typical guide from £94,500.
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Kitchen extensions with bedrooms above
From £61,500 (before kitchen units) in Broadfield. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Design, approvals and build for Broadfield homes. Guide from £61,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Broadfield depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
Also available in West Sussex
- 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 Broadfield
Broadfield 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 Broadfield
Do you cover Broadfield?
Yes. We cover Broadfield (RH11) and the surrounding area, including Crawley and Horley. The first site visit is free.
What does a two-storey extension cost in Broadfield?
Using our South East England 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 £61,500–£83,000 including VAT. An extension over a garage is about £34,500–£50,500.
Which other places near Broadfield do you cover?
Everywhere around it, including Crawley (1.5 miles), Horley (5.7 miles) and Horsham (5.8 miles), and the rest of West Sussex.