Data-backed planning intelligence · 2,500,000+ 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 14.4% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

6,836 real decisions·17 project types·Updated March 2026
94.9%
Safest: Conservatory
80.5%
Lowest: New Build
14.4%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory1561488
94.9%
2Wraparound Extension24022317
92.9%
3Loft Conversion13812810
92.8%
4Basement50464
92.0%
5Rear Extension2,3612,143218
90.8%
6Flat Conversion42384
90.5%
7Side Extension1,2811,157124
90.3%
8Annex31283
90.3%
9Garage / Parking80672482
89.8%
10HMO87789
89.7%
11Dormer75167081
89.2%
12Extension (General)42237646
89.1%
13Hip-to-Gable Conversion55496
89.1%
14Change of Use (Residential)68260082
88.0%
15Front Extension25621937
85.5%
16Outbuilding14512223
84.1%
17New Build30224359
80.5%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 94.9% approval rate. New Build? Just 80.5%.
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What the data tells us

1
The range is massive: 80.5% to 94.9%. 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

776 planning applications in Oldham 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 Oldham planning data

Nearby councils project type rankings

Methodology: Classifies 6,836 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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