House extensions in Pembrokeshire

Pembrokeshire received 201 householder applications in the last 12 months - about 4 a week. Garage works and rear extensions are the most common. Of the 155 decided so far, 126 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 53 applications
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
2 Sept 2026 Consultations Sent 26/0359/PA

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

Erection of a Garden Room

Full Pembrokeshire
30 Aug 2026 Pending 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 Consultations Sent 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-street parking.

Full Pembrokeshire
28 Aug 2026 Consultations Sent 26/0352/PA

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

The demolition / rebuild of fire damaged coach house for use as an ancillary workshop and store

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 Consultations Sent 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
21 Aug 2026 Registered 26/0349/CL

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

Mobile stable

Section 191 Pembrokeshire
18 Aug 2026 Consultations Sent 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.

Full Pembrokeshire
13 Aug 2026 Consultations Sent 26/0328/PA

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

Extension to dwelling

Full Pembrokeshire
12 Aug 2026 Consultations Sent 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 Initial Recommendation 26/0330/PA

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

Loft Conversion with Dormer Window

Full Pembrokeshire
7 Aug 2026 Consultations Sent 26/0327/PA

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

Extension and Alterations

Full Pembrokeshire
7 Aug 2026 Approved 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 Initial Recommendation 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 Consultations Sent 26/0317/PA

Starway, MATHRY, Haverfordwest, Pembrokeshire, SA62 5EU

Alterations and Replacement Porch

Full Pembrokeshire
3 Aug 2026 Consultations Sent 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 area

Full Pembrokeshire
3 Aug 2026 Initial Recommendation 26/0263/PA

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

Demolition and sensitive re-build of adjoining stone storage shed to provide additional amenity space (games room) to an existing dwelling.

Full Pembrokeshire
30 Jul 2026 Consultations Sent 26/0295/PA

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

Two storey extension to dwelling

Full Pembrokeshire
30 Jul 2026 Approved 26/0289/PA

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

Alterations and extension

Full Pembrokeshire
28 Jul 2026 Consultations Sent 26/0298/PA

Woodridge Inn, WOODEN, Saundersfoot, Pembrokeshire, SA69 9DY

Erection of a detached timber garden building for ancillary dining and guest use within the hotel grounds, together with associated landscaping works

Full Pembrokeshire
27 Jul 2026 Initial Recommendation 26/0296/PA

Zephyr Heights, Valley Road, WOODEN, Saundersfoot, Pembrokeshire, SA69 9BP

Alterations and extension

Full Pembrokeshire
27 Jul 2026 Approved 26/0281/PA

167, Steynton Road, Milford Haven, Pembrokeshire, SA73 1AJ

Single storey rear extension

Full Pembrokeshire
23 Jul 2026 Consultations Sent 26/0286/PA

Maesteg, HAYSCASTLE, Haverfordwest, Pembrokeshire, SA62 5NY

Remodelling, fenestration amendments and new rooflights

Full Pembrokeshire
23 Jul 2026 Initial Recommendation 26/0287/PA

40, St Leonards Avenue, CRUNDALE, Haverfordwest, Pembrokeshire, SA62 4DW

Alterations and extension

Full Pembrokeshire
20 Jul 2026 Initial Recommendation 26/0280/PA

Swn Y Nant, LLANDISSILIO, Clunderwen, Pembrokeshire, SA66 7PS

Side extension to dwelling

Full Pembrokeshire
20 Jul 2026 Approved 26/0256/PA

Blossom Hill, LOWER FREYSTROP, Haverfordwest, Pembrokeshire, SA62 4ET

Replacement front porch with alterations to existing fenestration and external works.

Full Pembrokeshire
16 Jul 2026 Approved 26/0276/PA

Dreenhill Farm, Dale Road, Haverfordwest, Pembrokeshire, SA62 3XG

Extension to agricultural building.

Full Pembrokeshire
16 Jul 2026 Approved 26/0275/PA

Westfield Cottage, Pembroke Road, Haverfordwest, Pembrokeshire, SA62 4LA

Alterations to a dwelling house to include conversion and extension of attached outbuilding

Full Pembrokeshire
16 Jul 2026 Approved 26/0230/PA

Pentwyn, 50, Milton Terrace, Pembroke Dock, Pembrokeshire, SA72 6BJ

External alterations and energy efficiency improvements to a dwelling.

Full Pembrokeshire
14 Jul 2026 Consultations Sent 26/0273/PA

TROED Y RHIW, Cwm Ffynnonau, NEWCHAPEL, Boncath, Pembrokeshire, SA37 0HQ

Alterations and Extension

Full Pembrokeshire
10 Jul 2026 Approved 26/0178/AG

Henllan Farm, LLANDDEWI VELFREY, Narberth, Pembrokeshire, SA67 7NZ

Erection of a steel frame cover over existing yard

Agri Notf Pembrokeshire
9 Jul 2026 Refused 26/0257/PA

Morrisons Petrol Filling Station, Bridge Meadow Lane, Haverfordwest, SA61 2EX

Demolition of the existing jet wash and bin store and extension to the existing petrol filling station's sales building (to include a hot food takeawa...

Full Pembrokeshire
8 Jul 2026 Approved 26/0255/PA

124, Steynton Road, STEYNTON, Milford Haven, Pembrokeshire, SA73 1AN

Side extension

Full Pembrokeshire
8 Jul 2026 Approved 26/0238/PA

35, Freemans Walk, Pembroke, Pembrokeshire, SA71 4AS

Garage extension to front of property

Full Pembrokeshire
7 Jul 2026 Refused 26/0211/PA

THE OLD FARMHOUSE, Rhosygilwen Farm, RHOSHILL, Cardigan, Pembrokeshire, SA43 2TW

Erection of domestic garage/ ancillary building.

Full Pembrokeshire
3 Jul 2026 Approved 26/0243/PA

Haverfordwest Library, 20, Swan Square, Haverfordwest, SA61 2AN

WC Alterations

Full Pembrokeshire
2 Jul 2026 Refused 26/0237/PA

Castle Lodge, EGLWYSWRW, Crymych, Pembrokeshire, SA41 3UJ

Alterations & Extension

Full Pembrokeshire
29 Jun 2026 Approved 26/0224/PA

2, Tudor Close, Pembroke, Pembrokeshire, SA71 5QD

Erect a Conservatory to the Side of No2 Tudor Close.

Full Pembrokeshire
25 Jun 2026 Approved 26/0150/PA

Deerlands, CAMROSE, Haverfordwest, Pembrokeshire, SA62 6HN

Proposed demolition of existing modern metal clad extensions and timber shed to be replaced with a single storey pitched roof extension to existing st...

Full Pembrokeshire
24 Jun 2026 Approved 26/0214/PA

Plot 7a, Parc Gwynfryn Industrial Estate, Crymych, SA41 3RQ

Storage shed (partially retrospective)

Retrospective S73A Pembrokeshire
24 Jun 2026 Consultations Received 26/0210/PA

2, Connacht Way, Pembroke Dock, Pembrokeshire, SA72 6FB

Extension and alterations

Full Pembrokeshire
23 Jun 2026 Refused 26/0192/PA

Windy Ridge, GOLDEN HILL, Pembroke, Pembrokeshire, SA71 4SZ

Conversion and extensions of barn to form a dwelling

Full Pembrokeshire
22 Jun 2026 Approved 26/0172/PA

Glannant, High Street, St Dogmaels, SA37 0JW

Alterations & Extension

Full Pembrokeshire
19 Jun 2026 Consultations Sent 26/0200/PA

Land at Former Agricultural/ Forestry Works Depot, Solbury Road, Tiers Cross, Haverfordwest, SA62 3DG

Two holiday cabins, mobile sauna & conversion and extension of existing building to padel courts and changing rooms to form Phase 2 of the existing Wi...

Full Pembrokeshire
18 Jun 2026 Approved 26/0197/PA

Dreenhill Farm, Dale Road, Haverfordwest, Pembrokeshire, SA62 3XG

Creation of new access and blocking up of existing access as part of GI enhancement

Full Pembrokeshire
18 Jun 2026 Approved 26/0198/PA

Ty Mor, PENALLY, Tenby, Pembrokeshire, SA70 7QE

Addition of a rear dormer and front rooflight, replacement front extension and internal alterations.

Full 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.