Two-storey extensions in Southgate
Planning a bigger home in Southgate? Compare extension types and guide prices below, then book a free site visit.
Southgate at a glance
- Postcode districts
- N13
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Palmers Green (0.4 miles), Wood Green (1.4 miles), Tottenham (1.6 miles), Edmonton (1.9 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 Southgate (N13) and the places around it, including Palmers Green (0.4 miles), Wood Green (1.4 miles) and Tottenham.
Extensions available in Southgate
Two-storey rear extensions
From £67,000 in Southgate. Free visit to firm it up.
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Two-storey side extensions
From £103,500 in Southgate. Free visit to firm it up.
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Two-storey wraparound extensions
Design, approvals and build for Southgate homes. Guide from £144,500.
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Part single, part two-storey extensions
For homes in Southgate: typical guide from £86,500.
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Extensions over a garage
Our London guide starts at £38,000 for this type.
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First-floor extensions
Our London guide starts at £30,000 for this type.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Southgate homes. Guide from £67,000.
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Two-storey extensions for detached houses
Guide from £103,500 in Southgate, including VAT.
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Kitchen extensions with bedrooms above
Southgate guide price from £67,000 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
For homes in Southgate: typical guide from £67,000 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Southgate 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 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 Southgate
Southgate 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 Southgate
Do you cover Southgate?
Yes. We cover Southgate (N13) and the surrounding area, including Palmers Green and Wood Green. The first site visit is free.
What does a two-storey extension cost in Southgate?
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 Southgate do you cover?
Everywhere around it, including Palmers Green (0.4 miles), Wood Green (1.4 miles) and Tottenham (1.6 miles), and the rest of Greater London.