Data-backed planning intelligence · 3,770,000+ decisions analysed across England

Most Common Planning Applications in Oxford

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Oxford is 33.1% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

6,129 real decisions·17 project types·Updated August 2026
98.0%
Safest: Basement
64.9%
Lowest: Annex
33.1%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Basement98962
98.0%
2Conservatory17515916
90.9%
3Dormer49044446
90.6%
4Loft Conversion37133536
90.3%
5Extension (General)12911613
89.9%
6Rear Extension1,3861,228158
88.6%
7Outbuilding30226636
88.1%
8Front Extension897811
87.6%
9Hip-to-Gable Conversion13211517
87.1%
10Garage / Parking713608105
85.3%
11Side Extension46339469
85.1%
12Wraparound Extension14512223
84.1%
13New Build23819741
82.8%
14Change of Use (Residential)35028961
82.6%
15Flat Conversion544410
81.5%
16HMO29322964
78.2%
17Annex372413
64.9%
See how this applies to your postcode →

These are council averages. Your property is specific.

A basement application has a 98.0% approval rate. Annex? Just 64.9%.
Check your postcode to see what actually happens near your address.

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What the data tells us

1
The range is massive: 64.9% to 98.0%. 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

523 planning applications in Oxford 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 Oxford planning data

Nearby councils project type rankings

Methodology: Classifies 6,129 decisions in Oxford 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 Oxford Council's public planning portal, January 2020 to August 2026. Full methodology →
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