Approved planning applications · October 2026
Extending in Southwark: what the council approves
Build Team has secured approval for 133 projects in Southwark: 88 loft conversions and 45 ground floor extensions, across 8 postcode districts. The median approved floor area is 30 m². Southwark Council generally allow a boundary wall height of up to 2.3m.
What Southwark council is like to work with
We have tons of experience with Southwark and work with them day to day. We have a fantastic relationship with them and really enjoy working together.
A fantastic borough with huge amounts of character. There are lots of conservation areas so you should be mindful of this when designing your scheme.
Boundary wall height
Southwark Council generally allow a boundary wall height of up to 2.3m.
Design considerations
Basements are becoming popular and will require an Impact Assessment Report. The Dulwich Estate will require a separate application on top of the standard planning application.
Guidance from Build Team's design team, based on applications we have submitted in this borough. Council policy changes: check the current local plan before you rely on it.
What has been approved in Southwark
| Type of project | Approved | Share |
|---|---|---|
| Loft conversions | 88 | 66% |
| Ground floor extensions | 45 | 34% |
| Houses / flats | 118 houses, 15 flats | |
| Median floor area | 30 m² (average 30.7 m²) | |
Postcode districts covered: SE1, SE15, SE152TE, SE17, SE22, SE229JZ, SE24, SE5
Build Team projects in Southwark
- Heber Ro, SE229JZ Wraparound Extension · 50 m² · 12 weeks · 2024
- Therapi Rear Extension · 50 m² · 16 weeks · 2022
- Dulwich Road, SE228PW Wraparound Extension · 27 m² · 12 weeks · 2021
Sunray Avenue
Side Return Extension
Side Return Extension in Southwark (SE22), over 50 m²
Side Return Extension
Side Return Extension in Southwark (SE22), over 50 m²
Side Return Extension
Side Return Extension in Southwark (SE22), 25–29 m²
Side Return Extension
Side Return Extension in Southwark (SE15), 35–39 m²
Side Return Extension
Side Return Extension in Southwark (SE15), 30–40 m²
Side Return Extension
Our services in Southwark
- Loft conversions 88 approved here
- Side return extensions
- Rear extensions
- Wraparound extensions
- Kitchen extensions
- Party wall agreements
Not sure which fits your house? Compare all services and typical costs.
Planning an extension in Southwark?
We handle the application from survey to decision, and we know what this borough approves. Start with a free 30-minute consultation.
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