House extensions in Pembrokeshire

Pembrokeshire received 232 householder applications in the last 12 months - about 4 a week. Garage works and rear extensions are the most common. Of the 190 decided so far, 155 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 50 applications
21 Oct 2026 Consultations Sent 26/0504/PA

Wilkinsons, Old Bridge, Haverfordwest, Pembrokeshire, SA61 2ET

Minor external alterations including removal of glazed canopy, blocking up of windows on western elevation, replacement roof top plant, replacement sh...

Full Pembrokeshire
7 Oct 2026 Consultations Sent 26/0470/PA

2, Lowless Close, Pembroke, Pembrokeshire, SA71 5QL

Erection of garden annex in retrospect

Full Pembrokeshire
6 Oct 2026 Consultations Sent 26/0469/PA

Fern Hill, EAST WILLIAMSTON, Tenby, Pembrokeshire, SA70 8RT

Alterations and extensions to dwelling with replacement garage. (partly in retrospect)

Retrospective S73A Pembrokeshire
5 Oct 2026 Consultations Sent 26/0454/PA

Shalom, Buttermilk Lane, Pembroke, Pembrokeshire, SA71 4TL

Removal of sub-standard garage and construction of side and rear extensions together with resubmission of new entrance previously approved under D3/60...

Full Pembrokeshire
5 Oct 2026 Consultations Sent 26/0451/PA

31, Waterloo Road, Pembroke Dock, SA72 6UA

Demolition of the existing rear lounge extension and erection of a new pitched-roof rear extension (infill) to include a kitchen/breakfast area.

Full Pembrokeshire
5 Oct 2026 Consultations Sent 26/0417/PA

69, Park Street, Pembroke Dock, Pembrokeshire, SA72 6BL

Alterations & extension

Full Pembrokeshire
2 Oct 2026 Consultations Sent 26/0445/PA

Cosheston Village Hall, COSHESTON, Pembroke Dock, Pembrokeshire

Extension to gain storage space at village Hall

Full Pembrokeshire
1 Oct 2026 Consultations Sent 26/0441/PA

Shalom, Penally, Tenby, SA70 7QJ

Window alterations to front elevation.

Full Pembrokeshire
1 Oct 2026 Consultations Sent 26/0435/PA

Cross Cottage, MARTLETWY, Narberth, Pembrokeshire, SA67 8AJ

Dwelling extension

Full Pembrokeshire
30 Sept 2026 Consultations Sent 26/0406/PA

41, Hayston Avenue, Hakin, Milford Haven, Pembrokeshire, SA73 3EA

Reconfiguration of existing dwelling, replacement dormer and parking area (AMEND

Full Pembrokeshire
29 Sept 2026 Consultations Sent 26/0431/PA

Hazelmere, 24, Leonardston Road, LLANSTADWELL, Milford Haven, Pembrokeshire, SA73 1EP

Extension and Alterations.

Full Pembrokeshire
28 Sept 2026 Consultations Sent 26/0426/LB

45, High Street, Fishguard, Pembrokeshire, SA65 9AW

Conservation style roof window.

List Bld Pembrokeshire
21 Sept 2026 Consultations Sent 26/0411/PA

Gwent Lodge, Lower Lamphey Road, Pembroke, Pembrokeshire, SA71 4AF

Alterations and extension

Full Pembrokeshire
21 Sept 2026 Consultations Sent 26/0410/PA

Baglan Farm, MARTLETWY, Narberth, Pembrokeshire, SA67 8AW

Alterations & extensions to dwelling and erection of a garage.

Full Pembrokeshire
16 Sept 2026 Consultations Sent 26/0404/PA

ROSEDENE, Merlins Cross, Lower Lamphey Road, Pembroke, Pembrokeshire, SA71 4AG

Alterations and extensions to dwelling

Full Pembrokeshire
15 Sept 2026 Consultations Sent 26/0368/PA

Cwtch, Church Lane, ST DOGMAELS, Cardigan, Pembrokeshire, SA43 3EH

Demolition of existing outbuildings. Single story extension with solar panels.

Full Pembrokeshire
15 Sept 2026 Initial Recommendation 26/0378/LB

Llanrhian Church Hall, Llanrhian, SA62 5BG

Proposed Replacement single storey rear extension and refurbishment works of fire damaged extension. Like for like.

List Bld Pembrokeshire
15 Sept 2026 Initial Recommendation 26/0377/PA

Llanrhian Church Hall, Llanrhian, SA62 5BG

Proposed Replacement single storey rear extension and refurbishment works of fire damaged extension. Like for like.

Full Pembrokeshire
14 Sept 2026 Approved 26 Oct 26/0396/PA

Taliesin, Smyth Street, Fishguard, Pembrokeshire, SA65 9LG

Alterations & extension

Full Pembrokeshire
11 Sept 2026 Consultations Sent 26/0394/PA

Brynhill Farm, PROVIDENCE HILL, Narberth, Pembrokeshire, SA67 8RE

Demolish existing rear extension, with a replacement two storey extension.

Full Pembrokeshire
8 Sept 2026 Consultations Received 26/0387/PA

9, Sageston Fields, SAGESTON, Tenby, Pembrokeshire, SA70 8TQ

Alterations to existing drive/off road parking.

Full Pembrokeshire
8 Sept 2026 Consultations Sent 26/0347/LB

Sandhouse, Bentlass, HUNDLETON, Pembroke, Pembrokeshire, SA71 5RN

Replacement windows & doors insertion of 2 conservation rooflights & construction of small rear west facing balcony (Partly in Retrospect)

List Bld Pembrokeshire
3 Sept 2026 Approved 13 Oct 26/0373/PA

42B, Mount Pleasant Way, Milford Haven, Pembrokeshire, SA73 1AB

Single storey side extension

Full Pembrokeshire
2 Sept 2026 Approved 13 Oct 26/0359/PA

Trintex, High Street, ST FLORENCE, Tenby, Pembrokeshire, SA70 8LJ

Erection of a Garden Room

Full Pembrokeshire
30 Aug 2026 Refused 8 Oct 26/0355/PA

7, Laws Street, Pembroke Dock, Pembrokeshire, SA72 6DJ

Repaint the front exterior walls and windowsills of the dwelling

Full Pembrokeshire
28 Aug 2026 Approved 21 Oct 26/0367/PA

Hillside Cottage, Upper Row, GOLDEN HILL, Pembroke, Pembrokeshire, SA71 4TB

Creation of a new domestic vehicular access and hardstanding to provide off-stre

Full Pembrokeshire
28 Aug 2026 Approved 21 Oct 26/0352/PA

Ashleigh House, SAGESTON, Tenby, Pembrokeshire, SA70 8SG

The demolition / rebuild of fire damaged coach house for use as an ancillary wor

Full Pembrokeshire
27 Aug 2026 Consultations Sent 26/0364/PA

Clun, Boncath, SA37 0JY

Extensions to dwelling

Full Pembrokeshire
27 Aug 2026 Consultations Sent 26/0363/PA

Draenen Ddu, CROESGOCH, Haverfordwest, Pembrokeshire, SA62 5JN

Rear extension

Full Pembrokeshire
27 Aug 2026 Withdrawn 21 Oct 26/0316/PA

Grass Roots Caravan And Glamping, Main Road, WATERSTON, Milford Haven, Pembrokeshire, SA73 1DU

Outdoor Bar and covered seating area in Retrospect

Retrospective S73A Pembrokeshire
26 Aug 2026 Consultations Sent 26/0348/PA

Sandhouse, Bentlass, HUNDLETON, Pembroke, Pembrokeshire, SA71 5RN

Replacement windows & doors insertion of 2 conservation rooflights & construction of small rear west facing balcony (Partly in Retrospect)

Retrospective S73A Pembrokeshire
24 Aug 2026 Consultations Sent 26/0356/PA

Moss Hall, Maidenwells, Pembroke, Pembrokeshire

Relocation of existing access and restoration & extension of cottage.

Full Pembrokeshire
21 Aug 2026 Approved 13 Oct 26/0349/CL

3, Cart-tws Bach, TREFFYNNON, Haverfordwest, Pembrokeshire, SA62 5LA

Retention of a stable/shelter for animals.

Section 191 Pembrokeshire
20 Aug 2026 Approved 29 Sep 26/0305/PA

4-CAROUSEL, Crestville, TWYCROSS, Saundersfoot, Pembrokeshire, SA69 9DP

Replacement of the existing garage to provide new garage with first floor annex

Full Pembrokeshire
18 Aug 2026 Refused 12 Oct 26/0345/PA

4, Bower Bungalows, PENALLY, Tenby, Pembrokeshire, SA70 7QE

Alterations and extension.

Full Pembrokeshire
13 Aug 2026 Consultations Sent 26/0335/PA

The Landings, Kiln Park, BURTON FERRY, Milford Haven, Pembrokeshire, SA73 1NY

Single Storey Detached Garage. (AMENDED PLANS)

Full Pembrokeshire
13 Aug 2026 Approved 7 Oct 26/0328/PA

Frondeg, Heol-y-llan, LLANDISSILIO, Clunderwen, Pembrokeshire, SA66 7TN

Extension to dwelling

Full Pembrokeshire
12 Aug 2026 Approved 25 Sep 26/0331/PA

4, Gerddi Rhosyn, Kilgetty, Pembrokeshire, SA68 0AF

Conversion of garage to lounge and widening of existing driveway.

Full Pembrokeshire
12 Aug 2026 Refused 2 Oct 26/0330/PA

58, Haven Road, Haverfordwest, Pembrokeshire, SA61 1DX

Loft Conversion with Dormer Window

Full Pembrokeshire
7 Aug 2026 Refused 1 Oct 26/0327/PA

Coalpit Farmhouse, Brickhurst Park, JOHNSTON, Haverfordwest, Pembrokeshire, SA62 3PD

Extension and Alterations

Full Pembrokeshire
7 Aug 2026 Approved 1 Sep 26/0272/PA

Associated Yard - Garden, 19 Gwili Road, Hakin, Milford Haven, SA73 1LH

Provision of domestic garage with ecological enhancements

Full Pembrokeshire
6 Aug 2026 Approved 4 Sep 26/0319/PA

27, Primrose Drive, Haverfordwest, Pembrokeshire, SA61 2GB

Conversion of existing garage to provide ground floor bedroom and WC

Full Pembrokeshire
6 Aug 2026 Approved 29 Sep 26/0317/PA

Starway, MATHRY, Haverfordwest, Pembrokeshire, SA62 5EU

Alterations and Replacement Porch

Full Pembrokeshire
3 Aug 2026 Approved 24 Sep 26/0301/PA

Observatory Ground, Picton Road, Hakin, Milford Haven, Pembrokeshire, SA73 3ES

Extension to club house including creation of outdoor seating area and patio are

Full Pembrokeshire
3 Aug 2026 Approved 1 Sep 26/0263/PA

Middle Hill Farm, FREYSTROP, Haverfordwest, Pembrokeshire, SA62 4LD

Demolition and sensitive re-build of adjoining stone storage shed to provide add

Full Pembrokeshire
30 Jul 2026 Consultations Sent 26/0430/PA

Land off Bridge Lane, Keeston, Haverfordwest, Pembrokeshire, SA62 6EE

Multi purpose shed and stables

Full Pembrokeshire
30 Jul 2026 Refused 21 Sep 26/0295/PA

2, Leamington Cottages, Narberth, Pembrokeshire, SA67 7NX

Two storey extension to dwelling

Full Pembrokeshire
30 Jul 2026 Approved 1 Sep 26/0289/PA

20, Eastleigh Drive, Milford Haven, Pembrokeshire, SA73 2LX

Alterations and extension

Full Pembrokeshire
29 Jul 2026 Approved 26/0308/PA

Brynhyfryd, WOLFSCASTLE, Haverfordwest, Pembrokeshire, SA62 5DT

Extension to agricultural cubicle shed (Retrospective)

Retrospective S73A Pembrokeshire
29 Jul 2026 Approved 26/0307/PA

Brynhyfryd, WOLFSCASTLE, Haverfordwest, Pembrokeshire, SA62 5DT

Extension to existing agricultural cubicle shed (retrospective).

Retrospective S73A Pembrokeshire
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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 Pembrokeshire?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Pembrokeshire. You can also narrow the alert to a postcode, street, or drawn area.

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