Search Williamstown planning applications
63 applications on record · within 1 km of the centre of Williamstown · updated daily · Rhondda Cynon Taf County Borough Council
Only 1 application in the last 90 days, so this shows every one we hold.
- 3 Merion Street Williamstown Tonypandy Rhondda Cynon Taf CF40 1QUApprovedProposed two storey rear extension.Full ApplicationReceived 17 Jun 2026Decided 23 Sep 202626/0533/FUL
- Land At George Street & David Street Williamstown Tonypandy Rhondda Cynon TafAwaiting decisionDemolition of derelict garage and erection of proposed battery of 3 garagesFull ApplicationReceived 5 Mar 202626/0212/FUL
- 35 Penygraig Road Pen-y-graig Tonypandy Rhondda Cynon Taf CF40 1HAApprovedTwo storey rear extension with first floor balconyFull ApplicationReceived 5 Nov 2025Decided 27 Jan 202625/1117/FUL
- 21 Tynycai Place Pen-y-graig Tonypandy Rhondda Cynon Taf CF40 1QWApprovedTwo storey extension to rear and new raised decking with access stepsFull ApplicationReceived 15 Oct 2025Decided 4 Dec 202525/1058/FUL
- 62 Brook Street Williamstown Tonypandy Rhondda Cynon Taf CF40 1RERefusedChange of use of hair salon in front room of the property to C3 residential to be used as a living room in association with the residential unit and associated works (Retrospective).Full ApplicationReceived 22 Sep 2025Decided 6 Mar 202625/0967/FUL
Planning in Williamstown
- Approved
- 91%
- 10 of 11 decided
- Decision time
- about 11 weeks
- on average
Applications within 1 km of the centre of Williamstown in the last 24 months, from Rhondda Cynon Taf County Borough Council's planning register.
Decided by Rhondda Cynon Taf County Borough CouncilCouncil page
Around Williamstown
Postcode districts
CF40 52 applications in the last 12 months
Applications in each district in the last 12 months.
Nearby towns and villages
Planning authority: Rhondda Cynon Taf County Borough Council
For home projects and trades
- Architects in WilliamstownFor planning applications, extensions and new builds.
- Building contractors in WilliamstownLocal builders for approved plans and permitted development.
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Application types: Rear extensionsLoft conversionsHouseholder applicationsTree works & TPOListed building consentChange of useAnnexes & granny flatsSolar panelsBarn conversionsBasement extensions
About Williamstown
Williamstown is a village nestled in the Rhondda Valley, within the county borough of Rhondda Cynon Taf, Wales. Established in the 1870s, it lies at the foot of Mynydd Dinas and is considered a district of the nearby village of Penygraig, making it a significant area for potential planning applications and developments.
Property prices in Williamstown show an average sale price of £133,578, based on 50 recent transactions recorded by HM Land Registry.
In terms of safety, there were no crimes reported in the immediate area during the most recent reporting period (May 2026). This makes Williamstown 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, Williamstown 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 Williamstown, 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, 12 planning applications were submitted near Williamstown. Of these, 91% were approved, with an average decision time of 79 days.
The most common types were full planning applications (8), telecoms (3), advertising consent (1).
1 planning appeal was lodged, of which 0 were allowed and 1 was dismissed (0% success rate).