Caerphilly planning approval rate

Caerphilly council approved 83.2% of planning applications and refused 16.8%, based on 1,944 decisions analysed. Ranked 29th out of 221 councils for strictness.

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

83.2%

overall approval rate

1,944

Decisions analysed

1,618

Approved

326

Refused

Wards covered

Planning in Caerphilly? 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 Caerphilly. Householder and full planning applications typically have the highest volume.

Full (897 decided)

80.0%

Other (622 decided)

87.3%

Certificate of Lawfulness (206 decided)

83.5%

Trees (105 decided)

82.9%

Change of Use (69 decided)

79.7%

Advertisement (39 decided)

100.0%

Approval rate by project type

These rates are based on what homeowners are actually building in Caerphilly — mined from 1,944 proposal descriptions.

Rear Extension (439 decided)

85.6%

Garage / Parking (403 decided)

82.9%

Side Extension (257 decided)

77.8%

Extension (General) (225 decided)

80.9%

Change of Use (Residential) (111 decided)

81.1%

Dormer (103 decided)

78.6%

Outbuilding (67 decided)

85.1%

Conservatory (62 decided)

90.3%

Loft Conversion (49 decided)

83.7%

Wraparound Extension (38 decided)

73.7%

Front Extension (33 decided)

57.6%

Annex (26 decided)

76.9%

New Build (23 decided)

87.0%

Basement (12 decided)

83.3%

Flat Conversion (12 decided)

83.3%

Approval rate by ward

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

St Martins (156 decided)

84.0%

Penyrheol (118 decided)

81.4%

Pontllanfraith (110 decided)

86.4%

Morgan Jones (102 decided)

85.3%

Blackwood (100 decided)

83.0%

Crumlin (86 decided)

86.0%

Bedwas, Trethomas & Machen (83 decided)

92.8%

Nelson (81 decided)

82.7%

Penmaen (81 decided)

77.8%

Newbridge (77 decided)

83.1%

Ystrad Mynach (73 decided)

86.3%

St Cattwg (69 decided)

79.7%

Abercarn (64 decided)

84.4%

Risca West (57 decided)

77.2%

Ynysddu (52 decided)

86.5%

Llanbradach (45 decided)

80.0%

St James (44 decided)

90.9%

Hengoed (42 decided)

90.5%

Maesycwmmer (40 decided)

85.0%

Argoed (38 decided)

65.8%

Wards in Caerphilly

St Martins

84.0% approval · 156 decisions

Penyrheol

81.4% approval · 118 decisions

Pontllanfraith

86.4% approval · 110 decisions

Morgan Jones

85.3% approval · 102 decisions

Blackwood

83.0% approval · 100 decisions

Crumlin

86.0% approval · 86 decisions

Bedwas, Trethomas & Machen

92.8% approval · 83 decisions

Nelson

82.7% approval · 81 decisions

Penmaen

77.8% approval · 81 decisions

Newbridge

83.1% approval · 77 decisions

Ystrad Mynach

86.3% approval · 73 decisions

St Cattwg

79.7% approval · 69 decisions

Abercarn

84.4% approval · 64 decisions

Risca West

77.2% approval · 57 decisions

Ynysddu

86.5% approval · 52 decisions

Llanbradach

80.0% approval · 45 decisions

St James

90.9% approval · 44 decisions

Hengoed

90.5% approval · 42 decisions

Maesycwmmer

85.0% approval · 40 decisions

Argoed

65.8% approval · 38 decisions

Recent comparable decisions

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

26/0024/COU

Change the use of first floor from D1 Storage to C3 residential apartment · Ystrad Mynach · Tue 03 Mar 2026

Approved

26/0028/FULL

Erect single storey rear extension to facilitate additional storage space for th · Ystrad Mynach · Mon 02 Mar 2026

Approved

26/0026/HH

Erect two storey side extension · Risca East · Mon 16 Feb 2026

Approved

Showing 3 of 200 comparable decisions. See all 200 in the Pro Report →

What gets approved near your property?

In Caerphilly, 1 in 6 applications are refused. Your PlanningLens Pro Report gives you 17 pages of intelligence specific to your property:

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

Get Caerphilly Pro Report — £79

Less than one set of revised drawings. Based on 1,944 decisions.

Compare with nearby councils

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