Data-backed planning intelligence · 2,500,000+ decisions analysed across England

Most Common Planning Applications in Runnymede

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Runnymede is 37.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

13,387 real decisions·17 project types·Updated March 2026
94.2%
Safest: Basement
56.4%
Lowest: HMO
37.8%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Basement44742126
94.2%
2Wraparound Extension40737631
92.4%
3Conservatory51947940
92.3%
4Side Extension1,7851,620165
90.8%
5Front Extension58452955
90.6%
6Hip-to-Gable Conversion19217022
88.5%
7Rear Extension3,4873,055432
87.6%
8Loft Conversion68159685
87.5%
9Garage / Parking2,8542,488366
87.2%
10Outbuilding1,092950142
87.0%
11Dormer1,2761,098178
86.1%
12Annex1069115
85.8%
13Extension (General)66156497
85.3%
14New Build951797154
83.8%
15Change of Use (Residential)646462184
71.5%
16Flat Conversion745222
70.3%
17HMO392217
56.4%
See how this applies to your postcode →

These are council averages. Your property is specific.

A basement application has a 94.2% approval rate. HMO? Just 56.4%.
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What the data tells us

1
The range is massive: 56.4% to 94.2%. 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

1,710 planning applications in Runnymede 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 Runnymede planning data

Methodology: Classifies 13,387 decisions in Runnymede 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 Runnymede Council's public planning portal, January 2020 to present. Full methodology →
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