House extensions in Ceredigion

Ceredigion received 220 householder applications in the last 12 months - about 4 a week. Garage works and rear extensions are the most common. Of the 174 decided so far, 153 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 58 applications
22 Oct 2026 In Progress A260666

PENLANSAITH, Tresaith, Cardigan, Ceredigion, SA43 2JH

Renovations and extension to existing dwelling

Householder Planning Ceredigion
19 Oct 2026 In Progress A260655

BLAENWAUN, Aberporth, Cardigan, Ceredigion, SA43 2HS

Proposed alterations and extension works to existing dwelling, to include the proposed erection of a replacement domestic garage and workshop, to incl...

Householder Planning Ceredigion
16 Oct 2026 In Progress A260630

5 Cambrian Place, Aberystwyth, Ceredigion, SY23 1NT

Proposed extensions and alterations to include the demolition of the existing rear kitchen and W.C. extensions, with associated works to an existing H...

Full Planning Ceredigion
15 Oct 2026 In Progress A260648

WAUNGELOD, Gwbert, Cardigan, Ceredigion, SA43 1PW

Addition of enclosed Porch area and raised sills to adjacent bay windows to proposed replacement bay windows / porch structure already approved by app...

Non-Material Amendment Ceredigion
15 Oct 2026 In Progress A260639

PENTYPARC, Penrhiwllan, Llandysul, Ceredigion, SA44 5NL

Initial planning for holiday let now completed and signed off by building control. We would request a change from holiday let to use of an annexe to t...

Householder Planning Ceredigion
12 Oct 2026 In Progress A260567

BWTHYN GWYN, Caerwedros, Llandysul, Ceredigion, SA44 6BW

Retrospective planning permission for a new vehicular Entrance/driveway to the property. Application relates to notice INV250079

Full Planning Ceredigion
12 Oct 2026 In Progress A260604

The site is approximately 30 yards from the entrance to an 11 acre woodland located to the north east of the…

The building as a wooden storage shed for use in the management of the 11 acres of woodland in which it is located. It is approximately 24 x 12 x 12 f...

Full Planning Ceredigion
9 Oct 2026 In Progress A260631

5 Cambrian Place, Aberystwyth, Ceredigion, SY23 1NT

Proposed extensions and alterations to include the demolition of the existing rear kitchen and W.C. extension, with associated works to an existing Ho...

Conservation Area Consent Ceredigion
9 Oct 2026 In Progress A260628

CAEMEILLION, Maesymeillion, Llandysul, Ceredigion, SA44 4NJ

Proposed single storey extension to existing dwelling.

Householder Planning Ceredigion
9 Oct 2026 In Progress A260621

LLERNEUADDAU, Ponterwyd, Aberystwyth, Ceredigion, SY23 3AG

Proposed side extension & alterations

Householder Planning Ceredigion
5 Oct 2026 In Progress A260608

Rhandir Farm, Tremain, SA43 1SJ

Proposed extensions, alterations and refurbishment works to include demolitions and associated works.

Full Planning Ceredigion
5 Oct 2026 In Progress A260614

The Moody Cow, Farm Shop And Cafe, BARGOED, Llwyncelyn, Aberaeron, Ceredigion, SA46 0HL

Proposed Extension & Alterations to Existing Building "The Moody Cow"

Full Planning Ceredigion
30 Sept 2026 In Progress A260609

Y GARTH Station Road, Tregaron, Ceredigion, SY25 6HY

Proposed rear extension & alterations

Householder Planning Ceredigion
29 Sept 2026 In Progress A260598

BRONGLAIS HOSPITAL Caradog Road, Aberystwyth, Ceredigion, SY23 1ER

The proposal is for a new external escape ladder, fixed to the existing stair core, providing an alternative means of escape from the lower roof level...

Certificate of Lawful Development Existing/Proposed Ceredigion
28 Sept 2026 In Progress A260601

7 South Marine Terrace, Aberystwyth, Ceredigion, SY23 1JX

Householder application to alter the existing roof and replace 2 roof lights with windows and doors, creating external space.

Householder Planning Ceredigion
25 Sept 2026 In Progress A260602

6 Trem Y Foel, Penrhiwllan, Llandysul, Ceredigion, SA44 5NN

Construction of a single storey rear extension to provide a ground floor bedroom & accessible shower room, including demolition of an existing store s...

Householder Planning Ceredigion
24 Sept 2026 In Progress A260583

LLYSYWERN, Rhydlewis, Llandysul, Ceredigion, SA44 5PQ

Extension to existing garage

Householder Planning Ceredigion
23 Sept 2026 In Progress A260560

Holiday Unit 1, NANTGARANNEWYDD, Penrhiwllan, Ceredigion

Change of use of holiday let to ancillary residential annex

Full Planning Ceredigion
17 Sept 2026 In Progress A260579

WAUNGELOD, Gwbert, Cardigan, Ceredigion, SA43 1PW

Addition of enclosed Porch area and raised sills to adjacent bay windows to proposed replacement bay windows / porch structure already approved by app...

Householder Planning Ceredigion
17 Sept 2026 In Progress A260580

GLYNLLAN UCHAF, Cenarth, Newcastle Emlyn, Ceredigion, SA38 9JY

Demolition of existing kitchen and re-erection with additional bedroom over.

Householder Planning Ceredigion
16 Sept 2026 In Progress A260486

Leeswood Trefor Road, Aberystwyth , SY23 2EH

Replacement of the existing windows with white uPVC mechanically operated vertical sliding sash windows to the front elevation and white uPVC casement...

Householder Planning Ceredigion
15 Sept 2026 In Progress A260501

MWYTHIG, Aberaeron, Ceredigion, SA46 0JX

Demolition of existing outbuilding and construction of new domestic garage and associated works.

Full Planning Ceredigion
10 Sept 2026 Approved 19 Oct A260559

Ardwyn, Heol Y Bowls, Blaenporth, Sa43 2ar

Single-Storey, Rear Conservatory Extension.

Householder Planning Ceredigion
9 Sept 2026 Approved 13 Oct A260557

2 Parc Yr Efail, Cross Inn, Llandysul, Ceredigion, SA44 6LJ

Ground floor extension.

Certificate of Lawful Development Existing/Proposed Ceredigion
9 Sept 2026 Approved 23 Oct A260518

RHEIDOL VIEW, Ponterwyd, Aberystwyth, Ceredigion, SY23 3JY

Sinlge storey side extension and first floor extension above existing kitchen

Householder Planning Ceredigion
8 Sept 2026 Approved 15 Oct A260511

GLANGWENFFRWD, Penuwch, Tregaron, Ceredigion, SY25 6QZ

Proposed Extension And Alterations To Dwelling To Include Demolition To Outbuilding

Householder Planning Ceredigion
7 Sept 2026 In Progress A260536

LLANGORWEN COTTAGE, Clarach, Aberystwyth, Ceredigion, SY23 3DW

We would like to install a skylight window in the kitchen roof to provide some much needed light and make the space more usuable.

Listed Building Consent Ceredigion
7 Sept 2026 In Progress A260526

BRYNHYFRYD, Penrhyncoch, Aberystwyth, Ceredigion, SY23 3ES

Household application to demolish rear flat roof and UPVC porch to front and replace with larger front and rear extensions.

Householder Planning Ceredigion
7 Sept 2026 Approved 15 Oct A260491

Ibers, GOGERDDAN, Penrhyncoch, Aberystwyth, Ceredigion, SY23 3EB

Alterations and Refurbishment - Extension to Provide new lift

Full Planning Ceredigion
7 Sept 2026 In Progress A260496

Evans Bros, BRIDGEND HOUSE, 1 Bridge Street, Aberaeron, Ceredigion, SA46 0AS

To remove/replace the slate covering on the roof, re-new the attic insulation, re-new chimney flashings and replace an existing velux roof light with ...

Listed Building Consent Ceredigion
3 Sept 2026 Approved 21 Oct A260530

3 Elm Tree Avenue, Aberystwyth, Ceredigion, SY23 1LP

Demolition of garage and erection of single storey extension

Householder Planning Ceredigion
3 Sept 2026 In Progress A260531

Pier Building South John Street, New Quay, Ceredigion, SA45 9NW

The proposal involves reinstating building components which have been damaged or lost due to the fire incident earlier this year. Reinstatement works ...

Listed Building Consent Ceredigion
3 Sept 2026 In Progress A260525

RUMMERS WINE BAR Bridge Street, Aberystwyth, Ceredigion, SY23 1QD

Like-for-like replacement of one decayed timber window at lower ground floor level in the sea/river facing elevation: A new window

Listed Building Consent Ceredigion
2 Sept 2026 Approved 8 Oct A260487

Lord Milford Building, IBERS, Gogerddan, Aberystwyth, SY23 3EE

Alterations and Refurbishment

Full Planning Ceredigion
28 Aug 2026 Approved 21 Oct A260465

GERDDI GLEISION, Bontgoch, Talybont, Ceredigion, SY24 5DP

Outdoor equestrian riding arena for domestic use, enclosed by wooden post and rail fencing with a sand and fibre surface

Full Planning Ceredigion
27 Aug 2026 Approved 15 Oct A260558

95 Maes-y-deri, Talybont, Ceredigion, SY24 5HQ

Provide New EWI to External Walls with Render Finish in lieu of Existing Brickwork & Tile Hanging. Amendments to Fenestration.

Full Planning Ceredigion
27 Aug 2026 Approved 15 Oct A260547

NANTCWTTA, Llangwyryfon, Aberystwyth, Ceredigion, SY23 4HD

Extension to existing agricultural building

Full Planning Ceredigion
27 Aug 2026 Approved 29 Sep A260497

1 CILHAUL, Cenarth, Newcastle Emlyn, Ceredigion, SA38 9JX

Erection of single storey rear extension with rooflights following demolition of existing conservatory and lounge; Hip to gable loft conversion with i...

Certificate of Lawful Development Existing/Proposed Ceredigion
26 Aug 2026 Approved 6 Oct A260505

DELFRYN, Llwyncelyn, Aberaeron, Ceredigion, SA46 0HG

Proposed erection of open-plan kitchen / dining / sitting room extension to rear, and a porch to front of existing dwelling & all associated works.

Householder Planning Ceredigion
21 Aug 2026 In Progress A260477

15 Victoria Street, Aberaeron, Ceredigion, SA46 0DA

Proposed Extension and Alterations to Dwelling

Listed Building Consent Ceredigion
20 Aug 2026 In Progress A260555

NEWLANDS Antaron Avenue, Southgate, Aberystwyth, Ceredigion, SY23 1SF

Proposed extension to dwelling, including the change of adjacent land to be included within domestic curtilage.

Full Planning Ceredigion
20 Aug 2026 In Progress A260456

NATIONAL LIBRARY OF WALES, Penglais, Aberystwyth, Ceredigion, SY23 3BU

The objective of the proposal is to improve the external access to the National Library by widening the current steps. The works are modest in nature ...

Full Planning Ceredigion
20 Aug 2026 In Progress A260457

National Library Of Wales National Library Access, Penglais, Aberystwyth, SY23 3BU

The objective of the proposal is to improve the external access to the National Library by widening the current steps. The works are modest in nature ...

Listed Building Consent Ceredigion
19 Aug 2026 Approved 12 Oct A260492

WOODLANDS, Alltyblaca, Llanybydder, Ceredigion, SA40 9ST

Proposed conversion of storage building into annexe

Householder Planning Ceredigion
19 Aug 2026 In Progress A260466

The Dunes, Coronation Drive, SA43 1PP

Residential property seeking certificate for outbuilding already constructed in line with householder permitted development rights which is being used...

Certificate of Lawful Development Existing/Proposed Ceredigion
17 Aug 2026 Approved 17 Sep A260454

LANLAS FAWR, Cellan, Lampeter, Ceredigion, SA48 8JA

We believe that the proposed rear extension would fall within householder permitted development rights.

Certificate of Lawful Development Existing/Proposed Ceredigion
17 Aug 2026 Approved 9 Oct A260459

BRYN Y GRAIG Bryn-y-mor Road, Aberystwyth, Ceredigion, SY23 2HX

Proposed alterations

Householder Planning Ceredigion
17 Aug 2026 Approved 1 Sep A260460

MAES Y FEDWEN, Tresaith, Cardigan, Ceredigion, SA43 2JG

A two storey side extension + A single storey rear extension.

Certificate of Lawful Development Existing/Proposed Ceredigion
11 Aug 2026 Approved 30 Sep A260484

BRYNTYWOD, Penparc, Cardigan, Ceredigion, SA43 1RE

Side extension to existing garage.

Householder Planning Ceredigion
11 Aug 2026 Approved 6 Oct A260479

GWARALLT, Capel Seion, Aberystwyth, Ceredigion, SY23 4EJ

Proposed side extensions & alterations

Householder Planning Ceredigion
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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 Ceredigion?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Ceredigion. You can also narrow the alert to a postcode, street, or drawn area.

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