Data-backed planning intelligence · 3,290,000+ decisions analysed across England

Rear Extension Approval Rates in Hart

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 2,170 real decisions tell us about rear extension outcomes in Hart.

2,170 real decisions·January 2020 to present·Updated June 2026
86.8%
Approval Rate
2,170
Decisions
1,883
Approved
287
Refused
86.8% approved. But 287 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.

Check Planning Approval Patterns in Hart

See your ward's approval rate and nearby planning decisions — free and instant.

Check My Postcode

Why rear extension approval rates matter

Rear extensions sit in the middle of the pack nationally. They're common enough that councils have clear precedent — but that cuts both ways. If your neighbours have been refused, that precedent works against you too.

Ward gap in Hart: Hartley Wintney approves 100.0% of rear extension applications while Fleet West sits at 87.5%. That 12.5% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Hartley Wintney77
100.0%
2Church Crookham East77
100.0%
3Fleet East Ward66
100.0%
4East Yateley66
100.0%
5Fleet West87
87.5%
See how this applies to your postcode →

These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in Hartley Wintney but just 87.5% in Fleet West.
Check your postcode to see what actually happens near your address.

Check My Postcode

How rear extensions compare to other project types

Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Hart.

TypeDecisionsRate
Hip-to-Gable Conversion55
90.9%
Conservatory649
88.9%
Loft Conversion179
87.2%
Rear Extension2,170
86.8%
Side Extension1,592
85.2%
Front Extension546
83.7%
Dormer524
81.3%
Garage / Parking2,128
79.7%
Outbuilding639
79.7%
Wraparound Extension248
79.4%
Extension (General)314
76.1%
Annex67
73.1%
New Build373
69.4%
Change of Use (Residential)309
65.7%
Flat Conversion31
58.1%
See how this applies to your postcode →

What the data tells us

1
86.8% of rear extension applications in Hart get approved. That means 287 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 12.5% gap between Hartley Wintney (100.0%) and Fleet West (87.5%) means your postcode is one of the strongest indicators of outcome.
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

287 rear extension applications in Hart 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.

Check my postcode
Free · Property report emailed in minutes · Based on 3,290,000+ real decisions

More Hart planning data

Nearby councils rear extension data

Methodology: Based on 2,170 planning decisions classified as rear extensions in Hart, 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 Hart Council's public planning portal. Full methodology →
Check planning approval patterns in Hart — Free