House extensions in Powys

Powys received 294 householder applications in the last 12 months - about 6 a week. Garage works and side extensions are the most common. Of the 167 decided so far, 134 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 77 applications
Yesterday Under Consultation P/26/1202/HH

Bron Felyn, Llandinam, SY17 5BY

Erection of extension

Householder planning permission Powys
23 Oct 2026 Under Consultation P/26/1241/HH

1 Gough Avenue, Ystradgynlais, Swansea, SA9 1AW

Erection of a single storey extension to rear of property

Householder planning permission Powys
22 Oct 2026 Under Consultation P/26/1179/LBC

The Papworth Trust,Orchard Cottage,Cilthrew,Kerry,Newtown,SY16 4PF

Internal and external alterations

LBC Powys
22 Oct 2026 Under Consultation P/26/1121/HH

The Papworth Trust,Orchard Cottage,Cilthrew,Kerry,Newtown,SY16 4PF

Erection of extensions

Householder planning permission Powys
22 Oct 2026 Under Consultation P/26/1225/FUL

Dam View, Llanwddyn, Oswestry, SY10 0LZ

Proposed extension to existing timber cabin with retail use (approved under 23/1185/FUL)

Full planning permission Powys
22 Oct 2026 Valid P/26/1183/CLP

May Cottage, the Green, Glasbury, Hereford, HR3 5LJ

Section 192 application for a Lawful Development Certificate for the erection of a single storey garden room

Lawful development Powys
19 Oct 2026 Under Consultation P/26/1199/HH

Dol Yr Heol, New Mills, Newtown, SY16 3NR

Erection of extensions

Householder planning permission Powys
19 Oct 2026 Under Consultation P/26/1116/HH

Frongain, Clatter, Caersws, SY17 5NL

Proposed Extension to existing bungalow and proposed detached garage with home office/studio space above

Householder planning permission Powys
14 Oct 2026 Under Consultation P/26/1177/HH

Wood House, Sarn, Newtown, SY16 4EU

Two-storey side extension

Householder planning permission Powys
13 Oct 2026 Under Consultation P/26/1174/CLP

Glyndwr, Onllwyn Road, Coelbren, Neath, SA10 9NW

Section 192 application for a lawful development certificate in relation to erection of extension

Lawful development Powys
13 Oct 2026 Under Consultation P/26/1160/HH

Dolau Jenkin, Penybont, Llandrindod Wells, LD1 6UT

Erection of replacement extensions and single storey rear extension

Householder planning permission Powys
8 Oct 2026 Under Consultation P/26/1144/LBC

Lower Trelowgoed, Crossgates, Llandrindod Wells, LD1 5PD

Internal and external works to include works to roof, doors and windows

LBC Powys
8 Oct 2026 Under Consultation P/26/1141/HH

Lower Trelowgoed, Crossgates, Llandrindod Wells, LD1 5PD

Erection of a two storey extension, installation of drainage and associated works

Householder planning permission Powys
5 Oct 2026 Under Consultation P/26/1137/HH

Bryn Eirian, Llansantffraid-Ym-Mechain, SY22 6TS

Demolition of existing conservatory, chimney and alterations to windows

Householder planning permission Powys
5 Oct 2026 Under Consultation P/26/1123/LBC

Bronydd Baptist Chapel, Clyro, Hereford

Internal and external works to include works to windows

LBC Powys
5 Oct 2026 Under Consultation P/26/1033/HH

Bronydd Baptist Chapel, Clyro, Hereford

Creation of a new link between the Chapel and Chapel Cottage, improvements to insulation and a new replacement suspended floor.

Householder planning permission Powys
5 Oct 2026 Under Consultation P/26/1009/HH

Trafelgwyn, Llangurig, Llanidloes, SY18 6RZ

Extension and alteration to existing dwelling, and associated internal works

Householder planning permission Powys
2 Oct 2026 Under Consultation P/26/1129/HH

17 Pencaemawr, Penegoes, Machynlleth, SY20 8PF

Erection of a detached building for use as garage & home gym with linked roof to property and relocation of ASHP

Householder planning permission Powys
2 Oct 2026 Under Consultation P/26/0875/HH

Tan-Y-Gadair, Llanfyllin, Powys, SY22 5LD

Single storey extension with internal alterations and associated works

Householder planning permission Powys
1 Oct 2026 Under Consultation P/26/0940/FUL

Cobblers Shop, Llanbister, Llandrindod Wells, LD1 6TN

Change of use of building to ancillary office and extension of domestic curtilage with external alterations and associated works (part retrospective)

Full planning permission Powys
29 Sept 2026 Under Consultation P/26/1103/FUL

Golfa Farm, Castle Caereinion, Welshpool, SY21 9AF

Alterations to existing access and creation of new vehicular access

Full planning permission Powys
29 Sept 2026 Withdrawn 21 Oct P/26/0662/HH

Fair View, Forden, Welshpool, SY21 8LZ

Convert an existing workshop to a self contained annex

Householder planning permission Powys
29 Sept 2026 Under Consultation P/26/1106/FUL

Greyhound Hotel, 3 Garth Road, Builth Wells, LD2 3AR

Erection of a pergola and associated works (retrospective)

Full planning permission Powys
28 Sept 2026 Under Consultation P/26/1162/LBC

Llwyn Onn Ocher, Llangynog, Oswestry, SY10 0HN

Renovation, internal alterations & extension to existing dwelling, erection of car port to include demolition of existing car port & 2 derelict struct...

LBC Powys
28 Sept 2026 Under Consultation P/26/1096/FUL

Llwyn Onn Ocher, Llangynog, Oswestry, SY10 0HN

Renovation, internal alterations & extension to existing dwelling, erection of car port to include demolition of existing car port & 2 derelict struct...

Full planning permission Powys
28 Sept 2026 Under Consultation P/26/1082/HH

Foxgloves, Llanyre, Llandrindod Wells, LD1 6EA

Extension to outbuilding

Householder planning permission Powys
25 Sept 2026 Under Consultation P/26/0972/HH

Gilfach, Manafon, Welshpool, SY21 8BP

Conversion of existing detached outbuilding to provide ancillary residential accommodation.

Householder planning permission Powys
25 Sept 2026 Under Consultation P/26/1084/FUL

1 Oxford House, Llandrindod Wells, LD1 6AG

Change of use of shop basement to residential, replacement window and associated works

Full planning permission Powys
24 Sept 2026 Approved 23 Oct P/26/1073/FUL

Bank House, East Street, Rhayader

Alteration to x1 and replacement of x4 windows

Full planning permission Powys
22 Sept 2026 Decided 19 Oct P/26/0983/AGR

Werncoed, Disserth, Builth Wells, LD2 3TL

Erection of extension to existing agricultural building

Prior notification Powys
22 Sept 2026 Under Consultation P/26/0870/FUL

Crofters Barn, Trewern, Welshpool, SY21 8EG

Conversion of part of an existing steel framed barn to a two storey granny annexe

Full planning permission Powys
21 Sept 2026 Under Consultation P/26/1135/LBC

Neuadd Fach, Llanfaredd, Builth Wells, LD2 3TE

Erection of a single storey rear extension, re-roofing, replacement joinery and associated internal and structural alterations

LBC Powys
21 Sept 2026 Under Consultation P/26/1051/HH

Neuadd Fach, Llanfaredd, Builth Wells, LD2 3TE

Erection of a single storey rear extension, re-roofing, replacement joinery and associated internal and structural alterations

Householder planning permission Powys
21 Sept 2026 Under Consultation P/26/1042/FUL

Rachfynydd, Garthbrengy, Brecon, LD3 9TS

Conversion & extension of former granary to a residential annexe associated to main farmhouse and all associated works

Full planning permission Powys
18 Sept 2026 Withdrawn 15 Oct P/26/0654/LBC

Gamekeepers Lodge, Norton, Presteigne, LD8 2EH

Take down bricks for re-use on top portion of chimney stack to enable stone plinth to be lifted and reset on a lead dampcourse

Listed Building Consent Powys
16 Sept 2026 Valid P/26/1024/CLP

41 Tan-Y-Farteg, Ystradgynlais, Swansea, SA9 2JU

Section 192 application for a Lawful Development Certificate for the conversion of an existing garage to home office and wet room

Lawful development Powys
16 Sept 2026 Under Consultation P/26/1023/HH

Maes-Y-Coed House, Maes-Y-Coed, Ystradgynlais, Swansea, SA9 2JZ

Proposed extension to existing outbuilding to form granny annexe ancillary to main dwelling

Householder planning permission Powys
14 Sept 2026 Under Consultation P/26/1014/LBC

The Grapes Inn, Salop Road, Welshpool, SY21 7EZ

Internal and external works to include replacement external door and x3 windows

LBC Powys
14 Sept 2026 Under Consultation P/26/0834/HH

Tynllwyn, Felindre, Knighton, LD7 1YT

Demolition of existing lean to structure and erection of a two-storey side extension and associated works

Householder planning permission Powys
10 Sept 2026 Under Consultation P/26/1085/LBC

1 Oxford House Llandrindod Wells, LD1 6AG

Internal and external works to include replacement window

LBC Powys
7 Sept 2026 Under Consultation P/26/0450/HH

3 Cambrian Place, Llanidloes, SY18 6BX

Replacement of window to front of property

Householder planning permission Powys
4 Sept 2026 Under Consultation P/26/0953/HH

Stone House, Pentre'r-beirdd, Guilsfield, Welshpool, SY21 9DL

Side and rear extensions to dwelling with demolition of outbuildings and associated works

Householder planning permission Powys
4 Sept 2026 Under Consultation P/26/0743/FUL

Priddbwll Bonc, Llangedwyn, Oswestry, SY10 9LA

Change of use of an agricultural building into 1 bed annex ancillary to main dwelling

Full planning permission Powys
2 Sept 2026 Under Consultation P/26/0703/FUL

Trem Y Dee, Geuffordd, Guilsfield, Welshpool, SY21 9DR

Removal of detached garage, erection of single storey extensions and extension of domestic curtilage

Full planning permission Powys
1 Sept 2026 Under Consultation P/26/0926/HH

47 Llwyn Perthi, Arddleen, Llanymynech, Welshpool, SY22 6QX

Extension to dwellinghouse

Householder planning permission Powys
1 Sept 2026 Approved 17 Sep P/26/0931/CLP

Garden House, 7 Redwood Close, Leighton, Welshpool, SY21 8JH

Section 192 application for a Lawful Development Certificate for the erection of a bespoke oak framed porch

Lawful development Powys
1 Sept 2026 Withdrawn 12 Oct P/26/0845/HH

Graig, Dolau, Llandrindod Wells, LD1 5TL

Erection of outbuilding and installation of solar panels to main building roof

Householder planning permission Powys
1 Sept 2026 Under Consultation P/26/0801/LBC

The Granary House, Penyclawdd, Llanbister Road, Llandrindod Wells, LD1 5UR

Replace the 2 existing conservation Velux windows with modern top-hung CK04 models of the same size and installation of 3 additional Velux windows

LBC Powys
27 Aug 2026 Under Consultation P/26/0867/LBC

Clematis, School Road, Guilsfield, Welshpool, SY21 9NQ

Demolition of an outbuilding and erection of replacement garage, installation of a ground source heat pump, ground-mounted solar panel array, internal...

LBC Powys
27 Aug 2026 Under Consultation P/26/0841/LBC

Park House, Leighton, Welshpool, SY21 8HJ

Alterations to existing garage including roof repairs, replacement garage door, removal and replacement of existing brickwork with rendered external w...

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

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