Two-storey extensions in Plumstead
Need more room in Plumstead? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Plumstead at a glance
- Postcode districts
- SE18
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Abbey Wood (1.1 miles), Welling (1.8 miles), Charlton (1.9 miles), Thamesmead (2.1 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 postcode district SE18 in and around Plumstead, along with neighbouring Abbey Wood, Welling and Charlton.
Extensions available in Plumstead
Two-storey rear extensions
Guide from £67,000 in Plumstead, including VAT.
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Two-storey side extensions
For homes in Plumstead: typical guide from £103,500.
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Two-storey wraparound extensions
From £144,500 in Plumstead. Free visit to firm it up.
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Part single, part two-storey extensions
Our London guide starts at £86,500 for this type.
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Extensions over a garage
Guide from £38,000 in Plumstead, including VAT.
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First-floor extensions
Design, approvals and build for Plumstead homes. Guide from £30,000.
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Two-storey extensions for semi-detached houses
From £67,000 in Plumstead. Free visit to firm it up.
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Two-storey extensions for detached houses
Guide from £103,500 in Plumstead, including VAT.
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Kitchen extensions with bedrooms above
Plumstead guide price from £67,000 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Our London guide starts at £67,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Plumstead we also design annexes, home offices and bedrooms over garages.
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 Plumstead
Plumstead 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 Plumstead
Do you cover Plumstead?
Yes. We cover Plumstead (SE18) and the surrounding area, including Abbey Wood and Welling. The first site visit is free.
What does a two-storey extension cost in Plumstead?
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 Plumstead do you cover?
Everywhere around it, including Abbey Wood (1.1 miles), Welling (1.8 miles) and Charlton (1.9 miles), and the rest of Greater London.