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Merthyr Tydfil planning approval rate

Merthyr Tydfil council approved 90.9% of planning applications and refused 9.1%, based on 1,203 decisions analysed. Ranked 145th out of 300 councils for strictness.

Last updated: August 2026 · Based on decisions from January 2020 to August 2026

90.9%
overall approval rate
1,203
Decisions analysed
1,093
Approved
110
Refused
11
Wards covered
Planning in Merthyr Tydfil? Check your postcode to see approval rates specific to your ward and street.

Approval rate by application type

Different application types have different approval rates in Merthyr Tydfil. Householder and full planning applications typically have the highest volume.

Full (734 decided)
88.6%
97.2%
Other (106 decided)
95.3%
87.7%
Advertisement (38 decided)
94.7%
Listed Building (26 decided)
92.3%
Trees (17 decided)
94.1%

Approval rate by project type

These rates are based on what homeowners are actually building in Merthyr Tydfil, mined from 1,203 proposal descriptions.

Garage / Parking (178 decided)
92.1%
Rear Extension (149 decided)
98.7%
80.3%
Extension (General) (91 decided)
89.0%
Side Extension (59 decided)
88.1%
New Build (50 decided)
90.0%
Outbuilding (43 decided)
86.0%
Dormer (37 decided)
81.1%
HMO (19 decided)
21.1%
Annex (18 decided)
94.4%
Front Extension (16 decided)
81.2%
Conservatory (11 decided)
90.9%

Approval rate by ward

Planning outcomes vary significantly by ward within Merthyr Tydfil. Click any ward for detailed statistics.

TOWN (224 decided)
92.4%
DOWLAIS (137 decided)
90.5%
PLYMOUTH (132 decided)
92.4%
TREHARRIS (131 decided)
91.6%
CYFARTHFA (128 decided)
92.2%
PARK (122 decided)
92.6%
VAYNOR (80 decided)
92.5%
MERTHYR VALE (62 decided)
83.9%
BEDLINOG (61 decided)
83.6%
PENYDARREN (45 decided)
80.0%
GURNOS (41 decided)
95.1%

Wards in Merthyr Tydfil

TOWN
92.4% approval · 224 decisions
DOWLAIS
90.5% approval · 137 decisions
PLYMOUTH
92.4% approval · 132 decisions
TREHARRIS
91.6% approval · 131 decisions
CYFARTHFA
92.2% approval · 128 decisions
PARK
92.6% approval · 122 decisions
VAYNOR
92.5% approval · 80 decisions
MERTHYR VALE
83.9% approval · 62 decisions
BEDLINOG
83.6% approval · 61 decisions
PENYDARREN
80.0% approval · 45 decisions
GURNOS
95.1% approval · 41 decisions

Recent comparable decisions

The most recent residential planning decisions in Merthyr Tydfil, showing how the council decides real applications.

Discharge conditions 4 (details of parking area) and 6 (boundary treatment detai · TOWN · Fri 14 Aug 2026
Approved
Single storey rear extension · TREHARRIS · Wed 12 Aug 2026
Approved
New fascia sign to the front elevation · VAYNOR · Mon 03 Aug 2026
Approved

Showing 3 recent comparable decisions. See more in the full report →

What gets approved near your property?

In Merthyr Tydfil, 1 in 11 applications are refused. Your PlanningLens Full Planning Analysis gives you 17 pages of intelligence specific to your property:

✓ Ward-level approval rates for your exact area
✓ Common refusal reasons in Merthyr Tydfil
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Free planning check for Merthyr Tydfil →

Free. Based on 1,203 decisions.

Compare with nearby councils

Frequently asked questions about planning in Merthyr Tydfil

What is the planning approval rate in Merthyr Tydfil?
Based on 1,203 planning decisions analysed since 2020, Merthyr Tydfil approved 90.9% of applications and refused 9.1%. The council is ranked 145th out of 300 UK councils for approval rate.
How many planning applications are refused in Merthyr Tydfil?
Merthyr Tydfil refuses 9.1% of planning applications, roughly 1 in 11. That is lower than the UK average of 11.4%. Out of 1,203 decided applications since 2020, 110 were refused. PlanningLens lets you check any postcode to see which applications were refused near a specific property.
Which areas of Merthyr Tydfil have the highest planning approval rates?
The highest approval rates in Merthyr Tydfil are in PARK (92.6%), VAYNOR (92.5%), and TOWN (92.4%). Approval rates vary significantly by ward, see the full ward breakdown above.
What types of planning application are most common in Merthyr Tydfil?
The most common planning application types in Merthyr Tydfil are: Full (734 decisions, 88.6% approved), Discharge of Conditions (217, 97.2%), and Other (106, 95.3%).
How long does a planning application take in Merthyr Tydfil?
Planning applications in Merthyr Tydfil take an average of 11.3 weeks to reach a decision, measured across 1,189 decisions with a recorded timeline. That is slower than the 8-week statutory target for householder applications (the statutory targets are 8 weeks for householder applications and 13 weeks for major developments). PlanningLens measures the actual time each application takes, not just the target. Merthyr Tydfil decides approximately 200 planning applications per year.
How do I check planning applications in Merthyr Tydfil?
You can search planning applications in Merthyr Tydfil directly on the council's official planning portal. PlanningLens also lets you check any postcode against 1,203 historical decisions in Merthyr Tydfil to see what's been approved and refused near a specific property.
How is PlanningLens approval rate data for Merthyr Tydfil calculated?
PlanningLens scrapes Merthyr Tydfil's official planning portal and analyses every published decision since January 2020. The approval rate is calculated as approved decisions divided by total decided applications, excluding withdrawn and pending applications. The full methodology, data sourcing, and Creative Commons BY 4.0 licensing terms are published at planninglens.co.uk/methodology.
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