Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland
PlanningLens

Most Common Planning Applications in Middlesbrough

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Middlesbrough is 18.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

15,727 real decisions·15 project types·Updated September 2026
97.4%
Safest: Conservatory
78.6%
Lowest: HMO
18.8%
Spread
15
Types ranked

Check Planning Approval Patterns in Middlesbrough

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

Check My Postcode

All 15 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory1,7271,68245
97.4%
2Extension (General)6,0865,642444
92.7%
3Outbuilding26624620
92.5%
4Garage / Parking2,5372,310227
91.1%
5Rear Extension54849454
90.1%
6Side Extension37533639
89.6%
7Loft Conversion84759
89.3%
8Change of Use (Residential)1,3561,166190
86.0%
9New Build735627108
85.3%
10Front Extension59509
84.7%
11Wraparound Extension25214
84.0%
12Dormer670560110
83.6%
13Flat Conversion18215131
83.0%
14Annex614912
80.3%
15HMO14511431
78.6%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 97.4% approval rate. HMO? Just 78.6%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

1
The range is massive: 78.6% to 97.4%. 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

1,265 planning applications in Middlesbrough 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 3,840,000+ real decisions

More Middlesbrough planning data

Nearby councils project type rankings

Methodology: Classifies 15,727 decisions in Middlesbrough 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 Middlesbrough Council's public planning portal, January 2020 to September 2026. Full methodology →
Check planning approval patterns in Middlesbrough — Free