Data-backed planning intelligence · 3,290,000+ decisions analysed across England

Most Common Planning Applications in Swindon

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Swindon is 7.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,413 real decisions·12 project types·Updated June 2026
96.9%
Safest: Wraparound Extension
89.9%
Lowest: Front Extension
7.0%
Spread
12
Types ranked

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All 12 project types ranked

#TypeDecisionsApprovedRefusedRate
1Wraparound Extension65632
96.9%
2Conservatory2332249
96.1%
3Outbuilding77734
94.8%
4Rear Extension1,2051,12976
93.7%
5Extension (General)1211138
93.4%
6Side Extension49045733
93.3%
7Garage / Parking40937930
92.7%
8Loft Conversion39363
92.3%
9New Build24922425
90.0%
10Dormer17816018
89.9%
11Change of Use (Residential)13912514
89.9%
12Front Extension11910712
89.9%
See how this applies to your postcode →

These are council averages. Your property is specific.

A wraparound extension application has a 96.9% approval rate. Front Extension? Just 89.9%.
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What the data tells us

1
The range is massive: 89.9% to 96.9%. 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

229 planning applications in Swindon have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.

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More Swindon planning data

Methodology: Classifies 4,413 decisions in Swindon 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 Swindon Council's public planning portal, January 2020 to present. Full methodology →
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