Marlborough planning approval rate
Marlborough ward in Harrow has a 80.7% approval rate based on 1,261 planning decisions. Harrow overall: 75.9%.
Last updated: August 2026
80.7%
ward approval rate
1,261
Decisions
1,018
Approved
243
Refused
75.9%
Harrow average
Marlborough sits slightly above the Harrow average, with a 4.8 point advantage. Planning outcomes here are generally favourable.
How Marlborough compares
Marlborough ward
80.7%
Harrow overall
75.9%
Planning in Harrow? Check your postcode to see approval rates specific to your ward and street.
Recent decisions in Marlborough
Single storey rear extension: 6.00 metres deep, 3.50 metres maximum height and 2 · 2026-08-03
Alterations to roof to form end gable, enlargement of rear dormer and rooflights · 2026-07-20
Conversion of dwelling into house of multiple occupancy (HMO) for up to 6 person · 2026-07-20
Alterations to roof: rear dormer; two rooflights in front roof slope to create h · 2026-07-13
Single and two storey rear extension; first floor balcony; external alterations · 2026-07-06
What gets approved near your property?
In Harrow, 1 in 4 applications are refused. Your PlanningLens Full Planning Analysis gives you 17 pages of intelligence specific to your property:
✓ Ward-level approval rates for your exact area
✓ Common refusal reasons in Harrow
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Free planning check for Harrow →
✓ Common refusal reasons in Harrow
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Free. Based on 22,151 decisions.