House extensions in Rhondda

Rhondda received 355 householder applications in the last 12 months - about 7 a week. Rear extensions and garage works are the most common. Of the 259 decided so far, 249 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 102 applications
Yesterday Pending Decision 26/0920/CPRO

27 Stryd Silurian Llanharry Rhondda Cynon Taf CF72 9GB

Single storey side extension.

Cert of Lawful Use/Operation - Proposed Rhondda
Yesterday Pending Decision 26/0901/FUL

26 Rhondda Terrace Ferndale Rhondda Cynon Taf CF43 4LF

Proposed construction of a single domestic garage with raised garden above.

Full Application Rhondda
Yesterday Pending Decision 26/0836/FUL

80 Heol Keir Hardie Pen-y-waun Aberdare Rhondda Cynon Taf CF44 9AL

Proposed single-storey side extension, together with rear alterations comprising the demolition of the existing rear outbuilding, the blocking up of a...

Full Application Rhondda
2 days ago Pending Decision 26/0867/CPRO

The Aucklands 6 Heol-y-mynach Ynys-y-bwl Pontypridd Rhondda Cynon Taf CF37 3PE

Erection of a freestanding Van Port situated between the existing detached single garage and existing detached double garage.

Cert of Lawful Use/Operation - Proposed Rhondda
23 Oct 2026 Pending Decision 26/0778/FUL

8 Forest Hills Drive Talbot Green Rhondda Cynon Taf CF72 8JB

Construction of a two storey hipped roof extension to side elevation and bay window to front elevation.

Full Application Rhondda
23 Oct 2026 Pending Decision 26/0905/FUL

7 Meadow Close Mountain Ash Rhondda Cynon Taf CF45 3DN

Proposed single storey rear extension and division of an existing dwelling into two separate dwellings.

Full Application Rhondda
22 Oct 2026 Pending Decision 26/0882/FUL

2 Bryngwyn Hirwaun Road Pen-y-waun Aberdare Rhondda Cynon Taf CF44 9AH

Proposed single-storey rear extension and first-floor wraparound side and rear extensions incorporating gable-end roof forms to the rear.

Full Application Rhondda
21 Oct 2026 Pending Decision 26/0886/FUL

7 Harcourt Road Mountain Ash Rhondda Cynon Taf CF45 3PY

First storey rear extension.

Full Application Rhondda
20 Oct 2026 Pending Decision 26/0863/CPRO

33 Heol Caradoc Pen-y-waun Aberdare Rhondda Cynon Taf CF44 9AY

Proposed external lift and store shed.

Cert of Lawful Use/Operation - Proposed Rhondda
19 Oct 2026 Pending Decision 26/0756/FUL

79 Whiterock Avenue Graig-wen Pontypridd Rhondda Cynon Taf CF37 2EY

Construct Dormer extension to first floor front elevation and duo-pitch porch extension to ground floor

Full Application Rhondda
19 Oct 2026 Pending Decision 26/0842/FUL

49 Parry Street Tonpentre Pentre Rhondda Cynon Taf CF41 7AJ

Proposed double and single storey rear extensions

Full Application Rhondda
19 Oct 2026 Pending Decision 26/0841/FUL

Mynydd Heulog Erw Hir Llantrisant Rhondda Cynon Taf CF72 8BY

Retrospective Planning for front wall

Full Application Rhondda
16 Oct 2026 Pending Decision 26/0870/FUL

2 Glan Yr Afon Mount Road Rhigos Aberdare Rhondda Cynon Taf CF44 9RJ

Two storey side extension and single storey extension with raised roof to existing semi-detached bungalow with internal remodelling. Demolition of exi...

Full Application Rhondda
16 Oct 2026 Pending Decision 26/0802/FUL

Cae Fardre Church Village CF38 1DT Rhondda Cynon Taf

Installation of a cycle hanger unit.

Full Application Rhondda
15 Oct 2026 Pending Decision 26/0904/FUL

Coppins 3 Y Parc Groes-faen Pontyclun Rhondda Cynon Taf CF72 8NP

First Floor Extension Over Garage.

Rhondda
15 Oct 2026 Pending Decision 26/0823/FUL

48 Potters Field Trecynon Aberdare Rhondda Cynon Taf CF44 8HX

Retrospective planning permission is sought for the retention of a rear dormer loft extension, together with the retention of a boundary fence measuri...

Full Application Rhondda
15 Oct 2026 Pending Decision 26/0885/CPRO

Weston Bungalow Brynna Road Brynna Rhondda Cynon Taf CF35 6PD

Erection of a single-storey rear extension

Cert of Lawful Use/Operation - Proposed Rhondda
14 Oct 2026 Pending Decision 26/0818/FUL

17 Underhill Drive Ton-teg Rhondda Cynon Taf CF38 1NW

Proposed single-storey extension to both side elevations and the rear of the existing dwelling, including extensions to the existing annexe and its in...

Full Application Rhondda
12 Oct 2026 Pending Decision 26/0868/FUL

Hollyoaks Peterston Road Groes-faen Pontyclun Rhondda Cynon Taf CF72 8NU

Enclosure and adaptation of the existing open-sided agricultural barn and its integration with the adjoining dwelling to provide ancillary care accomm...

Full Application Rhondda
9 Oct 2026 Pending Decision 26/0389/FUL

Red Cow Public House Llantrisant Road Tonyrefail Rhondda Cynon Taf CF39 8PP

Two storey side extension to form first floor function room and larger function room on the ground floor.

Full Application Rhondda
8 Oct 2026 Pending Decision 26/0881/FUL

40 Hillside Cwmdare Aberdare Rhondda Cynon Taf CF44 8RN

Proposed single storey extension to the side and front elevations.

Full Application Rhondda
8 Oct 2026 Pending Decision 26/0856/FUL

9 Bryn Ffynon Trebanog Porth Rhondda Cynon Taf CF39 9EE

Proposed two storey full width extension to form a kitchen dining area and bedroom, along with front porch.

Full Application Rhondda
8 Oct 2026 Pending Decision 26/0846/CPRO

4 The Grange Llantwit Fardre Rhondda Cynon Taf CF38 2DZ

Proposed part-conversion of garage to habitable accommodation with insertion of window into side elevation, and insertion of roof window to rear roof ...

Cert of Lawful Use/Operation - Proposed Rhondda
6 Oct 2026 Pending Decision 26/0727/FUL

34 Heritage Way Llanharan Rhondda Cynon Taf CF72 9WD

Retrospective approval for two garden rooms in rear garden

Full Application Rhondda
5 Oct 2026 Pending Decision 26/0736/FUL

47 Ffordd Y Friallen Llantwit Fardre Rhondda Cynon Taf CF38 2FH

Single storey extension to side elevation

Full Application Rhondda
5 Oct 2026 Pending Decision 26/0674/FUL

Glan Y Nant Llantrisant Road Llantwit Fardre Rhondda Cynon Taf CF38 2HF

Proposed two storey side extension and Single storey rear extension.

Full Application Rhondda
1 Oct 2026 Pending Decision 26/0783/FUL

34 Troedyrhiw Terrace Treorchy Rhondda Cynon Taf CF42 6PG

Proposed two storey side extension for a porch, bathroom and bedroom along with balcony

Full Application Rhondda
1 Oct 2026 Pending Decision 26/0762/FUL

86 - 87 Dunraven Street Tonypandy Rhondda Cynon Taf CF40 1AP

Installation of external roller shutter doors

Full Application Rhondda
1 Oct 2026 Pending Decision 26/0742/FUL

35 Trem Y Dolau Tonyrefail Rhondda Cynon Taf CF39 8FJ

Proposed single-storey storage space with raised terrace above

Full Application Rhondda
1 Oct 2026 Approved 23 Oct 26/0593/FUL

3 Bailey Street Wattstown Porth Rhondda Cynon Taf CF39 0RA

Removal of old tin garage and construct new brick/block garage

Full Application Rhondda
30 Sept 2026 Approved 16 Oct 26/0847/NMA

Darran Cottage Bwllfa Farm Bwllfa Road Cwmdare Aberdare Rhondda Cynon Taf CF44 8UL

Amend windows in the apex dormers to pitched windows, Juliet balconies to have glass balustrades instead of railings, cedar plank cladding around firs...

Non-Material Amendments Rhondda
28 Sept 2026 Approved 8 Oct 26/0843/NMA

Tair Level Ffynnonbwla Road Upper Boat Taff's Well Rhondda Cynon Taf

Remove second floor level and alterations to first floor of previous planning permission 19/0060/FUL.

Non-Material Amendments Rhondda
28 Sept 2026 Pending Decision 26/0784/FUL

3 Fairview Hirwaun Rhondda Cynon Taf CF44 9RY

Proposed single storey extension to rear elevation.

Full Application Rhondda
25 Sept 2026 Pending Decision 26/0840/FUL

7 Heol Mynydd Church Village Rhondda Cynon Taf CF38 1RS

Construction of a single storey extension to the rear of the property, extending from the existing rear dining room. The extension is to create a doub...

Full Application Rhondda
22 Sept 2026 Pending Decision 26/0716/FUL

56 Rhyd-yr-helyg Nantgarw Taff's Well Rhondda Cynon Taf CF15 7SX

Proposed Two Storey Side Extension

Full Application Rhondda
22 Sept 2026 Pending Decision 26/0813/FUL

41 Dol Y Llan Miskin Pontyclun Rhondda Cynon Taf CF72 8RY

Proposed single storey rear / side extension & front porch Alterations, including demolition of existing single storey rear extension

Full Application Rhondda
20 Sept 2026 Pending Decision 26/0210/FUL

Agricultural Land Near Lan Farm Pen-y-wal Road To Lan Quarry Graig-wen Pontypridd Rhondda Cynon Taf CF37 3NN

Improvement and formalisation of agricultural field access including regrading of entrance, installation of drainage and construction of dry stone bou...

Full Application Rhondda
18 Sept 2026 Pending Decision 26/0331/FUL

Cefnlee Farm Darren-ddu Road Glyn-coch Pontypridd Rhondda Cynon Taf CF37 3HE

Proposed retirement annexe ancillary to Cefnlee farm.

Full Application Rhondda
18 Sept 2026 Pending Decision 26/0516/FUL

24 Hafan Heulog Coed-y-cwm Pontypridd Rhondda Cynon Taf CF37 3JJ

Change of use of derelict land to additional residential curtilage, including the erection of a 2m-high feather-edge fence.

Full Application Rhondda
17 Sept 2026 Pending Decision 26/0785/FUL

Land Opposite 16 Long Row Blaenllechau Ferndale Rhondda Cynon Taf

Proposed construction of detached double garage

Full Application Rhondda
17 Sept 2026 Pending Decision 26/0692/FUL

25 Heol Clwyddau Beddau Rhondda Cynon Taf CF38 2LW

Front and Rear dormers.

Full Application Rhondda
17 Sept 2026 Pending Decision 26/0795/FUL

13 Tylacoch Place Treorchy Rhondda Cynon Taf CF42 6DH

Proposed first floor extension above existing kitchen to form a bedroom.

Full Application Rhondda
16 Sept 2026 Pending Decision 26/0763/FUL

Cartref Bungalow Coedcae Terrace Cwmaman Aberdare CF44 6PL

Proposed detached double garage

Full Application Rhondda
15 Sept 2026 Pending Decision 26/0777/FUL

54 Brynhyfryd Terrace Ferndale Rhondda Cynon Taf CF43 4LA

Construction of a two storey flat roof extension to rear/side of existing property

Full Application Rhondda
15 Sept 2026 Pending Decision 26/0792/FUL

Cartref 10 Brynna Road Brynna Rhondda Cynon Taf CF35 6PD

Proposed Increase in roof ridge height to provide loft accommodation and erection of a single-storey rear extension

Full Application Rhondda
14 Sept 2026 Pending Decision 26/0771/FUL

246 High Street Cymer Porth Rhondda Cynon Taf CF39 9AD

Convert the existing front garden into off-street parking with space for two cars, along with a dropped kerb

Full Application Rhondda
11 Sept 2026 Pending Decision 26/0743/FUL

4 Taff Street Gelli Pentre Rhondda Cynon Taf CF41 7TZ

Single storey rear extension and a first floor rear extension with some internal alterations together with minor rear garden alterations.

Full Application Rhondda
11 Sept 2026 Pending Decision 26/0751/FUL

50 Primrose Street Tonypandy Rhondda Cynon Taf CF40 1BQ

Domestic private garage to rear garden.

Full Application Rhondda
9 Sept 2026 Pending Decision 26/0768/FUL

Evesham Bungalow Old Llantrisant Road Tonyrefail Rhondda Cynon Taf CF39 8LW

Construction of new bungalow in the garden curtilage.

Full Application Rhondda
9 Sept 2026 Pending Decision 26/0738/FUL

Tylchawen Bungalow Tylcha Wen Farm Gelli'r Haidd Tonyrefail Rhondda Cynon Taf CF39 8AQ

Extension to front of property together with an extension to rear.

Full Application Rhondda
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in Rhondda?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Rhondda. You can also narrow the alert to a postcode, street, or drawn area.

We check Rhondda's planning portal daily. New extensions applications appear here within a day of being published.