CoverageLambethRear extensions

Rear extension planning permission refused in Lambeth

The commonest reason is design. We read 31 of the 35 rear extensions Lambeth refused since January 2026 and sorted each by what its reasons were about. Each dot is one of them.

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  1. Design and character of the area 15 of 31

  2. Neighbours' amenity 10 of 31

  3. Heritage assets 7 of 31

  4. Insufficient information 7 of 31

  5. Highways and parking 2 of 31

  6. Living conditions for future occupiers 2 of 31

  7. Not permitted development 2 of 31

Each dot is one refusal. A refusal usually gives more than one reason, so it can stand in more than one row.

Of the 31 refusals of rear extensions Lambeth made since January 2026 that we read, 48% were refused at least in part over design or the character of the area. Plan Forecast, 6 November 2026.

01

Design and character of the area

of the refusals we read

15 of the 31 rear extensions Lambeth refused that we read gave a reason about how the work looked, or how it sat in its street: its size, its shape, its materials.

How the councils compare

  • Manchester 66%
  • Cheshire West and Chester 55%
  • Westminster 52%
  • York 51%
  • Lambeth 48%
  • Epping Forest 46%
  • Milton Keynes 37%
  • Leeds 36%
  • Bromley 32%
  • Reading 32%
  • Trafford 32%
  • North Yorkshire 29%
  • Salford 25%
  • Buckinghamshire 20%
  • Ealing 18%
  • Rochdale 9%

Share of each council's refused rear extensions we read that gave a reason about it.

02

Neighbours' amenity

of the refusals we read

10 of the 31 rear extensions Lambeth refused that we read gave a reason about the people next door: their light, their outlook, their privacy, the sense of being hemmed in.

45°

How the councils compare

  • Manchester 63%
  • Bromley 61%
  • Reading 59%
  • Leeds 54%
  • Salford 47%
  • Epping Forest 44%
  • Milton Keynes 43%
  • Trafford 40%
  • Cheshire West and Chester 39%
  • Rochdale 39%
  • York 38%
  • Lambeth 32%
  • North Yorkshire 22%
  • Ealing 18%
  • Buckinghamshire 17%
  • Westminster 17%

Share of each council's refused rear extensions we read that gave a reason about it.

Also cited

  • Heritage assets 7 of 31
  • Insufficient information 7 of 31
  • Highways and parking 2 of 31
  • Living conditions for future occupiers 2 of 31
  • Not permitted development 2 of 31

Policies cited most

The plans and policies Lambeth's refusals named, each counted once a refusal.

  • Q11, Local Plan 21 of 31
  • Q5, Local Plan 20 of 31
  • Q22, Local Plan 15 of 31
  • Q2, Local Plan 10 of 31
  • National Planning Policy Framework 9 of 31
  • Q8, Local Plan 8 of 31

How we count

These are Lambeth's own refusals of rear extensions, decided in the last three years and listed on its register. For each one we read the decision notice and sorted its reasons by what they were about. 4 we have not read yet; they are counted as refusals and not as refusals without reasons.

A refusal usually gives more than one reason, so the shares add up to more than a hundred. Which refusals they were, where, and what each said, is in the Planning Forecast for your address, with a link to each council's own notice.

What Lambeth approves · Why rear extensions are refused at every council we read · Why planning permission gets refused, anywhere

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