Approved planning applications · October 2026
Extending in Islington: what the council approves
Build Team has secured approval for 53 projects in Islington: 35 loft conversions and 18 ground floor extensions, across 6 postcode districts. The median approved floor area is 32.7 m². Islington Council generally allow a boundary wall height of up to 2.3m.
What Islington council is like to work with
Islington are a lovely Council and as long as you can justify your design, you should gain planning without an issue.
Extending to the side or rear are very common and should pass planning without any issues.
Boundary wall height
Islington Council generally allow a boundary wall height of up to 2.3m.
Design considerations
Wraparound extensions are possible but you will probably need a courtyard to satisfy local planning policy.
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 Islington
| Type of project | Approved | Share |
|---|---|---|
| Loft conversions | 35 | 66% |
| Ground floor extensions | 18 | 34% |
| Houses / flats | 44 houses, 9 flats | |
| Median floor area | 32.7 m² (average 32.2 m²) | |
Postcode districts covered: N1, N19, N3, N4, N5, N7
Build Team projects in Islington
Side Return Extension in Islington (N4), 15–20 m²
Side Return Extension
Side Return Extension in Islington (N4), 20–24 m²
Side Return Extension
Side Return Extension in Islington (N5), 30–40 m²
Side Return Extension
Loft Conversion in Islington (N5), 30–40 m²
Loft Conversion
Side Return Extension in Islington (N5), 30–40 m²
Side Return Extension
Side Return Extension in Islington (N19), 25–30 m²
Side Return Extension
Our services in Islington
- Loft conversions 35 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 Islington?
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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