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Loft Conversion Approval Rates in Tower Hamlets

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 Tower Hamlets.

1,290 real decisions·January 2020 to September 2026·Updated September 2026
75.1%
Approval Rate
1,290
Decisions
969
Approved
321
Refused
75.1% approved. But 321 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 Tower Hamlets.

TypeDecisionsRate
Garage / Parking1,552
92.3%
New Build810
91.7%
Conservatory129
88.4%
Basement1,723
88.2%
Extension (General)1,159
84.4%
Flat Conversion396
83.8%
Side Extension419
83.5%
Outbuilding388
83.2%
Wraparound Extension68
80.9%
Rear Extension1,904
80.7%
Change of Use (Residential)2,181
80.1%
Dormer522
78.2%
Front Extension76
76.3%
Loft Conversion1,290
75.1%
Annex24
75.0%
HMO246
50.0%
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What the data tells us

1
75.1% of loft conversion applications in Tower Hamlets get approved. That means 321 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

321 loft conversion applications in Tower Hamlets 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 Tower Hamlets planning data

Nearby councils loft conversion data

Methodology: Based on 1,290 planning decisions classified as loft conversions in Tower Hamlets, January 2020 to September 2026. 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 Tower Hamlets Council's public planning portal. Full methodology →
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