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Loft Conversion Approval Rates in Haringey

Loft conversions change your roofline — and that makes them one of the more closely scrutinised application types. Councils scrutinise visibility, overlooking and street character more closely than for ground-level work. Here's what the data shows in Haringey.

2,341 real decisions·January 2020 to present·Updated June 2026
86.2%
Approval Rate
2,341
Decisions
2,019
Approved
322
Refused
86.2% approved. But 322 refused since 2020. Each refusal cost the homeowner time and money on drawings and application fees. Understanding your local data before you apply is the difference between confidence and a costly gamble.

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Why loft conversion approval rates matter

Loft conversions face more scrutiny than rear or side extensions because they change the property's profile from the street. Dormers, mansards and hip-to-gable alterations are particularly sensitive.

These are council averages. Your property is specific.

Two houses on the same street can get different outcomes.
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How loft conversions compare to other project types

Not all applications are treated equally. Here's how loft conversions stack up against other common projects in Haringey.

TypeDecisionsRate
Conservatory277
94.2%
Wraparound Extension355
90.4%
Dormer3,560
89.5%
Outbuilding934
89.5%
Flat Conversion1,959
88.6%
Hip-to-Gable Conversion358
88.5%
Side Extension1,377
88.2%
Rear Extension4,394
88.1%
Garage / Parking1,592
87.2%
Loft Conversion2,341
86.2%
Basement1,037
85.1%
New Build1,031
84.4%
Extension (General)2,448
82.9%
Front Extension91
82.4%
Annex43
81.4%
Change of Use (Residential)1,461
78.2%
HMO536
58.0%
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What the data tells us

1
86.2% of loft conversion applications in Haringey get approved. That means 322 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
3
Council averages are starting points, not guarantees. The decisions that matter most are the comparable ones near your specific property — because planning officers look at precedent, character and the immediate context of your street.

Before you spend £5,000+ on architects and drawings

322 loft conversion applications in Haringey 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 Haringey planning data

Nearby councils loft conversion data

Methodology: Based on 2,341 planning decisions classified as loft conversions in Haringey, January 2020 to present. Classification uses keyword matching against proposal descriptions (matching generate_site_data.py rules). A single application may appear in multiple categories. Approval rate = approved / (approved + refused). Pending, withdrawn and invalid applications excluded. Data from Haringey Council's public planning portal. Full methodology →
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