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Most Common Planning Applications in Wandsworth

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Wandsworth is 14.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

26,261 real decisions·17 project types·Updated March 2026
97.0%
Safest: Conservatory
83.0%
Lowest: Hip-to-Gable Conversion
14.0%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory99963
97.0%
2Flat Conversion72669927
96.3%
3Garage / Parking3,3263,181145
95.6%
4Basement3,1422,985157
95.0%
5New Build1,7081,60999
94.2%
6Side Extension3,3153,103212
93.6%
7Change of Use (Residential)1,9571,821136
93.1%
8Rear Extension5,9925,572420
93.0%
9Extension (General)1,5641,451113
92.8%
10Wraparound Extension26524520
92.5%
11Outbuilding78271864
91.8%
12Annex59545
91.5%
13Loft Conversion4,3043,931373
91.3%
14HMO19217319
90.1%
15Dormer1,8721,662210
88.8%
16Front Extension1149915
86.8%
17Hip-to-Gable Conversion28924049
83.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 97.0% approval rate. Hip-to-Gable Conversion? Just 83.0%.
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What the data tells us

1
The range is massive: 83.0% to 97.0%. Choosing the right project type — or framing your application correctly — can dramatically affect outcomes.
2
Visibility drives scrutiny. Project types that change the external appearance — dormers, loft conversions, hip-to-gable — face more resistance than those that don't. The more visible your proposal, the more carefully it needs designing.
3
These are council-wide averages. Your ward, your street and your immediate neighbours all shift the odds. The comparable decisions near your property are the best indicator of outcome.

Before you spend £5,000+ on architects and drawings

1,708 planning applications in Wandsworth have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 report shows you what gets approved — and what gets refused — near your property.

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More Wandsworth planning data

Nearby councils project type rankings

Methodology: Classifies 26,261 decisions in Wandsworth into residential project types using keyword matching against proposal descriptions (matching generate_site_data.py subtype rules). A single application may appear in multiple categories. Data from Wandsworth Council's public planning portal, January 2020 to present. Full methodology →
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