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Most Common Planning Applications in Stockton-on-Tees

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Stockton-on-Tees is 17.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

2,158 real decisions·10 project types·Updated March 2026
100.0%
Safest: Conservatory
83.0%
Lowest: Change of Use (Residential)
17.0%
Spread
10
Types ranked

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All 10 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory78780
100.0%
2Rear Extension3012983
99.0%
3Side Extension1131112
98.2%
4Garage / Parking37536411
97.1%
5Outbuilding55532
96.4%
6Extension (General)26725314
94.8%
7Dormer67634
94.0%
8Loft Conversion21192
90.5%
9New Build22119823
89.6%
10Change of Use (Residential)13511223
83.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 100.0% approval rate. Change of Use (Residential)? Just 83.0%.
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What the data tells us

1
The range is massive: 83.0% to 100.0%. 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

104 planning applications in Stockton-on-Tees 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 Stockton-on-Tees planning data

Nearby councils project type rankings

Methodology: Classifies 2,158 decisions in Stockton-on-Tees 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 Stockton-on-Tees Council's public planning portal, January 2020 to present. Full methodology →
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