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

Most Common Planning Applications in Oldham

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Oldham is 14.1% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

7,038 real decisions·17 project types·Updated June 2026
95.1%
Safest: Conservatory
81.0%
Lowest: New Build
14.1%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory1631558
95.1%
2Wraparound Extension24723017
93.1%
3Loft Conversion14413410
93.1%
4Basement50464
92.0%
5Rear Extension2,4332,215218
91.0%
6Flat Conversion44404
90.9%
7Side Extension1,3121,188124
90.5%
8Annex31283
90.3%
9HMO91829
90.1%
10Garage / Parking82474282
90.0%
11Hip-to-Gable Conversion59536
89.8%
12Dormer77369281
89.5%
13Extension (General)43138546
89.3%
14Change of Use (Residential)70462183
88.2%
15Front Extension26723037
86.1%
16Outbuilding14712423
84.4%
17New Build31025159
81.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 95.1% approval rate. New Build? Just 81.0%.
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What the data tells us

1
The range is massive: 81.0% to 95.1%. 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

777 planning applications in Oldham 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 Oldham planning data

Nearby councils project type rankings

Methodology: Classifies 7,038 decisions in Oldham 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 Oldham Council's public planning portal, January 2020 to present. Full methodology →
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