Research & Data
London Planning Data
Original research and data analysis for London homeowners navigating the planning system. Approval rates, processing times, refusal trends, and policy guides — compiled by our MCIAT-chartered team.
Original research and data analysis for London homeowners navigating the planning system. Approval rates, processing times, refusal trends, and policy guides — compiled by our MCIAT-chartered team.
MCIAT chartered drawings for planning, building regs, lofts and extensions. Tell us what you need and we’ll reply the same working day.
Which boroughs approve most readily — and which fight every application? Analysis of 24,757 householder decisions reveals a 30.6-point gap between the easiest and hardest boroughs to navigate.
Refusal rate and delay combined into one score across three years of MHCLG returns. Westminster comes out hardest at 33.0; Southwark easiest at 7.4. The formula is published beside the table.
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The 8-week statutory target is missed by most London boroughs. We map the reality — median weeks from validation to decision across all 33 councils.
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Over 80% of all household refusals in London share five root causes. Understanding them is the most direct path to a policy-ready submission.
Read the analysis
62 conservation areas in Kensington and Chelsea. 7 in Barking. The density of conservation designations in your borough defines your planning risk profile.
Read the guide
Use our free permitted development checker to find out whether your extension, loft conversion, or outbuilding needs a full planning application.
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