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Loft Conversion Approval Rates in South Kesteven

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 South Kesteven.

89 real decisions·January 2020 to present·Updated June 2026
96.6%
Approval Rate
89
Decisions
86
Approved
3
Refused
96.6% approved. But 3 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 South Kesteven.

TypeDecisionsRate
Front Extension187
96.8%
Loft Conversion89
96.6%
Rear Extension1,026
95.8%
Side Extension591
95.4%
Basement21
95.2%
Conservatory183
95.1%
Wraparound Extension111
94.6%
Outbuilding479
94.4%
Extension (General)813
93.1%
Garage / Parking1,185
91.7%
Change of Use (Residential)507
88.0%
Dormer177
87.6%
Flat Conversion24
87.5%
Annex174
87.4%
New Build540
80.7%
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What the data tells us

1
96.6% of loft conversion applications in South Kesteven get approved. That means 3 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

3 loft conversion applications in South Kesteven 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 South Kesteven planning data

Methodology: Based on 89 planning decisions classified as loft conversions in South Kesteven, 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 South Kesteven Council's public planning portal. Full methodology →
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