Search Thornhill planning applications
18 applications received or decided in the last 90 days · within 1 km of the centre of Thornhill · updated daily · Cardiff Council
- Hill House 90 Station Road Llanishen Cardiff CF14 5UXAwaiting decisionDischarge of Condition 3 (Detailed Specification, Engineer's reports) and 5 (Slates and Ridge tiles) of 22/02364/LBC.Received 3 Nov 202626/02312/DOC
- Hill House 90 Station Road Llanishen Cardiff CF14 5UXAwaiting decisionDischarge of Condition 4 (Biodiversity and Green Infrastructure Statement) of 22/02363/FULReceived 3 Nov 202626/02313/DOC
- Tangle Wood 44 Mill Road Lisvane Cardiff CF14 0XLAwaiting decisionSpruce overhanging 42 Mill rd - minor reduction of out of shape overhanging branches by up to 1.5m to suitable growth points and remove 2x low branches from the spruce growing over the garage.Received 23 Oct 202626/02208/WTTPFP
- 43 Ridgeway Lisvane Cardiff CF14 0RSApprovedCraetagus, front garden (TPO); remove all deadwood over 20mm in diameter, very minor reduction of stray regrowth to reshape and tidy.Received 12 Oct 2026Decided 19 Oct 202626/02150/WTTPFP
- 8 Deganwy Close Llanishen Cardiff CF14 5JTAwaiting decisionPorch extension.Received 5 Oct 202626/02096/HSE
Planning in Thornhill
- Approved
- 96%
- 25 of 26 decided
- Decision time
- about 5 weeks
- on average
Applications within 1 km of the centre of Thornhill in the last 24 months, from Cardiff Council's planning register.
Decided by Cardiff CouncilCouncil page
Around Thornhill
Postcode districts
CF14 320 applications in the last 12 months
Applications in each district in the last 12 months.
Nearby towns and villages
Planning authority: Cardiff Council
For home projects and trades
- Architects in ThornhillFor planning applications, extensions and new builds.
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Application types: Rear extensionsLoft conversionsHouseholder applicationsTree works & TPOListed building consentChange of useAnnexes & granny flatsSolar panelsBarn conversionsBasement extensions
About Thornhill
Thornhill is a vibrant community located in the northern part of Cardiff, Wales, positioned just south of Caerphilly. This area is notable for its residential developments and proximity to green spaces, making it an attractive location for planning applications related to housing and community infrastructure.
Property prices in Thornhill show an average sale price of £985,000, based on 1 recent transaction recorded by HM Land Registry. There are currently no active flood warnings for the Thornhill area, indicating a relatively low flood risk at present. This is a positive factor for both existing residents and those considering property purchases or new developments.
In terms of safety, there were no crimes reported in the immediate area during the most recent reporting period (May 2026). This makes Thornhill a particularly low-crime area, which is often reflected in its desirability and property values.
For anyone interested in property development or monitoring local planning decisions, Thornhill planning applications can be searched by entering a local postcode above. Results include full application details, decision status, and the ability to track applications over time and set planning alerts to help you monitor and review pending planning applications.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
To comment on or object to a planning application near Thornhill, open it in the list above: each one links to the council's own page for it and shows any comment deadline.
In the last 24 months, 77 planning applications were submitted near Thornhill. Of these, 96% were approved, with an average decision time of 32 days.
The most common types were full planning applications (25), tree works (20), discharge of conditions (2).