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Most Common Planning Applications in Basildon

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Basildon is 12.9% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

578 real decisions·10 project types·Updated March 2026
91.2%
Safest: Side Extension
78.3%
Lowest: New Build
12.9%
Spread
10
Types ranked

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All 10 project types ranked

#TypeDecisionsApprovedRefusedRate
1Side Extension57525
91.2%
2Loft Conversion21192
90.5%
3Rear Extension968610
89.6%
4Front Extension38344
89.5%
5Outbuilding26233
88.5%
6Dormer58517
87.9%
7Extension (General)36315
86.1%
8Change of Use (Residential)26224
84.6%
9Garage / Parking1109218
83.6%
10New Build23185
78.3%
See how this applies to your postcode →

These are council averages. Your property is specific.

A side extension application has a 91.2% approval rate. New Build? Just 78.3%.
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What the data tells us

1
The range is massive: 78.3% to 91.2%. Choosing the right project type — or framing your application correctly — can dramatically affect outcomes.
2
Visibility drives scrutiny. Project types that change the external appearance — dormers, loft conversions, hip-to-gable — face more resistance than those that don't. The more visible your proposal, the more carefully it needs designing.
3
These are council-wide averages. Your ward, your street and your immediate neighbours all shift the odds. The comparable decisions near your property are the best indicator of outcome.

Before you spend £5,000+ on architects and drawings

57 planning applications in Basildon 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 Basildon planning data

Nearby councils project type rankings

Methodology: Classifies 578 decisions in Basildon into residential project types using keyword matching against proposal descriptions (matching generate_site_data.py subtype rules). A single application may appear in multiple categories. Data from Basildon Council's public planning portal, January 2020 to present. Full methodology →
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