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Loft Conversion Approval Rates in Richmond

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 Richmond.

3,724 real decisions·January 2020 to present·Updated March 2026
81.6%
Approval Rate
3,724
Decisions
3,038
Approved
686
Refused
81.6% approved. But 686 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.

Loft Conversion approval rate by ward

#WardDecisionsApprovedRate
1Unknown3333
100.0%
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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 Richmond.

TypeDecisionsRate
Change of Use (Residential)1,351
91.1%
Conservatory678
89.5%
HMO122
89.3%
Flat Conversion328
88.4%
Outbuilding1,819
87.5%
Extension (General)1,482
85.0%
New Build780
83.8%
Garage / Parking3,156
83.7%
Basement890
83.4%
Hip-to-Gable Conversion1,214
82.7%
Rear Extension6,906
82.3%
Wraparound Extension584
82.0%
Side Extension3,129
81.9%
Dormer4,536
81.7%
Loft Conversion3,724
81.6%
Annex107
79.4%
Front Extension307
76.5%
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What the data tells us

1
81.6% of loft conversion applications in Richmond get approved. That means 686 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

686 loft conversion applications in Richmond 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 Richmond planning data

Nearby councils loft conversion data

Methodology: Based on 3,724 planning decisions classified as loft conversions in Richmond, 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 Richmond Council's public planning portal. Full methodology →
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