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Most Common Planning Applications in Haringey

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Haringey is 36.6% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

23,488 real decisions·17 project types·Updated March 2026
94.5%
Safest: Conservatory
57.9%
Lowest: HMO
36.6%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory27425915
94.5%
2Wraparound Extension34230834
90.1%
3Dormer3,4313,071360
89.5%
4Outbuilding90981396
89.4%
5Flat Conversion1,9401,721219
88.7%
6Side Extension1,3371,183154
88.5%
7Hip-to-Gable Conversion34530540
88.4%
8Rear Extension4,2753,760515
88.0%
9Garage / Parking1,5551,359196
87.4%
10Loft Conversion2,2621,949313
86.2%
11Basement1,022872150
85.3%
12New Build1,001844157
84.3%
13Extension (General)2,3711,963408
82.8%
14Front Extension877116
81.6%
15Annex39318
79.5%
16Change of Use (Residential)1,4231,119304
78.6%
17HMO503291212
57.9%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 94.5% approval rate. HMO? Just 57.9%.
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What the data tells us

1
The range is massive: 57.9% to 94.5%. 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

2,736 planning applications in Haringey 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 Haringey planning data

Nearby councils project type rankings

Methodology: Classifies 23,488 decisions in Haringey 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 Haringey Council's public planning portal, January 2020 to present. Full methodology →
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