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Loft Conversion Approval Rates in Dartford

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 Dartford.

195 real decisions·January 2020 to present·Updated March 2026
86.7%
Approval Rate
195
Decisions
169
Approved
26
Refused
86.7% approved. But 26 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
1Heath55
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 Dartford.

TypeDecisionsRate
Conservatory335
94.0%
Hip-to-Gable Conversion113
92.9%
Wraparound Extension86
91.9%
Outbuilding461
91.1%
Side Extension958
90.5%
Extension (General)217
90.3%
Rear Extension1,944
89.1%
Dormer818
88.3%
Garage / Parking1,750
88.2%
Front Extension227
87.7%
New Build671
86.7%
Loft Conversion195
86.7%
Annex97
86.6%
Basement91
84.6%
HMO58
77.6%
Change of Use (Residential)397
75.8%
Flat Conversion30
70.0%
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What the data tells us

1
86.7% of loft conversion applications in Dartford get approved. That means 26 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

26 loft conversion applications in Dartford 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 Dartford planning data

Nearby councils loft conversion data

Methodology: Based on 195 planning decisions classified as loft conversions in Dartford, 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 Dartford Council's public planning portal. Full methodology →
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