House extensions in Powys

Powys received 126 householder applications in the last 12 months - about 2 a week. Garage works and rear extensions are the most common. 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 60 applications
P/26/0518/FUL 24 Jun 2026 Under Consultation

The old workshop at Upper House, Discoed, Presteigne, LD8 2NW

Create new opening for new window in North gable of workshop

Full planning permission Powys 24 Jun 2026
P/26/0520/LBC 24 Jun 2026 Under Consultation

Workshop, Upper House, Discoed, Presteigne, LD8 2NW

Creation of new window opening in North gable of workshop

Listed Building Consent Powys 24 Jun 2026
P/26/0489/HH 19 Jun 2026 Under Consultation

OAKLANDS, GLASBURY, HEREFORD, HR3 5LH

Erection of extension

Householder planning permission Powys 19 Jun 2026
P/26/0447/FUL 11 Jun 2026 Under Consultation

RED HOUSE, POOL QUAY, WELSHPOOL, SY21 9LD

Extensions and alterations, demolition of existing barn and extension of curtilage for the erection of detached three bay garage

Full planning permission Powys 11 Jun 2026
P/26/0550/FUL 11 Jun 2026 Under Consultation

Brynafon Mawr, Cemaes, Machynlleth, Powys, SY20 8LE

Creation of new access to dwelling and parking area

Full planning permission Powys 11 Jun 2026
P/26/0401/PAR 9 Jun 2026 Valid

UPPER HOUSE FARM, KINNERTON, PRESTEIGNE

Extension to Fodder Store

Prior approval required Powys 9 Jun 2026
P/26/0402/FUL 9 Jun 2026 Under Consultation

PHEASANT INN, 14 MARKET STREET, NEWTOWN, SY16 2PQ

Conversion and extensions of first floor to create 4 self contained residential units, removal of external staircase and associated works

Full planning permission Powys 9 Jun 2026
P/26/0523/CLP 8 Jun 2026 Valid

BRYN BANADL, ABERHOSAN, MACHYNLLETH, SY20 8RA

Section 192 application to obtain a lawful development certificate for the construction of 2 new dormers with addition of a window in the gable end

Lawful development Powys 8 Jun 2026
P/26/0390/FUL 8 Jun 2026 Under Consultation

MAESPICA FARM, MAESPICA ROAD, LOWER CWMTWRCH, SWANSEA, SA9 2PP

Change of use from private storage (B8) to Bed and Breakfast, extension to create first floor with balcony and associated works

Full planning permission Powys 8 Jun 2026
P/26/0525/HH 4 Jun 2026 Under Consultation

HENLLYS UCHAF, SARNAU, BRECON, LD3 9PT

Replacement garage

Householder planning permission Powys 4 Jun 2026
P/26/0350/FUL 3 Jun 2026 Under Consultation

11C Broad Street, Welshpool, SY21 7JR

Change of use of offices to a mixed-use development comprising 2 No. retail and 2 No. residential dwellings, including external alterations and instal...

Full planning permission Powys 3 Jun 2026
P/26/0451/HH 28 May 2026 Under Consultation

SWEET MEADOW, LLANGYNIEW, WELSHPOOL, SY21 0LD

Erection of porch

Householder planning permission Powys 28 May 2026
P/26/0294/HH 21 May 2026 Under Consultation

PENGELLI, GLAS PWLL, MACHYNLLETH, SY20 8TY

Alterations and Extension

Householder planning permission Powys 21 May 2026
P/26/0283/HH 20 May 2026 Under Consultation

10 HEOL EGLWYS, COELBREN, NEATH, SA10 9PF

Erection of extension

Householder planning permission Powys 20 May 2026
P/26/0271/HH 19 May 2026 Under Consultation

PLOT 1, DEVELOPMENT 50M ENE OF BROOKLANDS, Y DERI, LLANIGON, HEREFORD

To construct a new detached Garage to side of property.

Householder planning permission Powys 19 May 2026
P/26/0276/HH 19 May 2026 Under Consultation

CRINGOED ISAF, LLANERFYL, WELSHPOOL, SY21 0JG

Erection of single storey extension

Householder planning permission Powys 19 May 2026
P/26/0258/HH 18 May 2026 Under Consultation

HOLMSIDE, 37 LONG BRIDGE STREET, LLANIDLOES, SY18 6EF

Replacement of dormer window with re-roofing works included

Householder planning permission Powys 18 May 2026
P/26/0250/LBC 15 May 2026 Under Consultation

RHYSGOG, LLANAFANFAWR, BUILTH WELLS, LD2 3LY

Replacement of existing windows to front and rear elevations

Listed Building Consent Powys 15 May 2026
P/26/0237/HH 14 May 2026 Under Consultation

4 KINGS COURT, PRESTEIGNE, LD8 2AJ

Proposed Rear Extension

Householder planning permission Powys 14 May 2026
P/26/0323/FUL 13 May 2026 Under Consultation

LAND AT GLOG HILL, BLEDDFA, KNIGHTON, LD7 1NY

Erection of an extension to muck store and associated works

Full planning permission Powys 13 May 2026
P/26/0232/HH 13 May 2026 Under Consultation

Plot 2, development 50m ene of Brooklands, Y Deri, Llanigon, Hereford

To construct a new detached Garage to side of property.

Householder planning permission Powys 13 May 2026
P/26/0281/AGR 12 May 2026 Under Consultation

UPPER HOUSE FARM, KINNERTON, PRESTEIGNE

Extension of fodder store

Prior notification Powys 12 May 2026
P/26/0220/HH 11 May 2026 Under Consultation

GROE VILLA, 12 THE STRAND, BUILTH WELLS, LD2 3BG

Erection of a detached home gym.

Householder planning permission Powys 11 May 2026
P/26/0215/CLP 11 May 2026 Valid

9 PARK-VIEW, LLAN-DDEW, BRECON, LD3 9RL

Section 192 application for a Lawful Development Certificate for the conversion of front garden into hardstanding for vehicular access and alterations...

Lawful development Powys 11 May 2026
P/26/0203/HH 7 May 2026 Under Consultation

8 SMITHFIELD STREET, LLANIDLOES, SY18 6EJ

Alterations to dwelling involving replacement chimney, new front door and step, new roof slates, 2 roof lights and new gutters & downpipes

Householder planning permission Powys 7 May 2026
P/26/0179/FUL 6 May 2026 Under Consultation

The Old Works, Pontithel, Brecon , LD3 0SA

Conversion and extension of existing building to form an affordable dwelling, installation of sewage treatment plant (upgrade of existing) and all ass...

Full planning permission Powys 6 May 2026
P/26/0304/FUL 5 May 2026 Under Consultation

Land at Gryliss, Llanfihangel Nant Melan, Llandrindod Wells

Erection of an extension to livestock shed and associated works

Full planning permission Powys 5 May 2026
P/26/0169/FUL 5 May 2026 Under Consultation

DOL YR HEOL, NEW MILLS, NEWTOWN, SY16 3NR

Erection of extensions and change of use of land to form an equestrian Manege

Full planning permission Powys 5 May 2026
P/26/0140/HH 1 May 2026 Under Consultation

PENBRYNDU, TYLWCH, LLANIDLOES, SY18 6JZ

Erection of extension with some demolition

Householder planning permission Powys 1 May 2026
P/26/0147/FUL 1 May 2026 Under Consultation

GWALIA, PEN-RHOS, LLANYMYNECH, SY22 6QE

Proposed extensions to dwelling and change of use of land to create new vehicular access and driveway with all associated works

Full planning permission Powys 1 May 2026
P/26/0151/CLP 1 May 2026 Under Consultation

PLASNEWYDD, CEFN COCH, LLANRHAEADR-YM-MOCHNANT, OSWESTRY, SY10 0BN

Section 192 application for a Lawful Development Certificate for the erection of a single storey side and rear extension

Lawful development Powys 1 May 2026
P/26/0156/HH 1 May 2026 Under Consultation

Bryn Hafren , Penthryn Lane , Arddleen, Llanymynech , SY22 6NW

Erection of a garden room

Householder planning permission Powys 1 May 2026
P/26/0158/LBC 1 May 2026 Under Consultation

41 Crescent Street, Newtown, SY16 2EX

Internal works and alterations to reinstate single dwellinghouse together with installation of extraction vent through flat roof

Listed Building Consent Powys 1 May 2026
P/26/0150/HH 29 Apr 2026 Under Consultation

KALVEENE, BROOKSIDE, KNIGHTON, LD7 1HG

Works to roof

Householder planning permission Powys 29 Apr 2026
P/26/0259/FUL 29 Apr 2026 Under Consultation

LAND AT CWMBROOK SURGERY, LLANYRE, LLANDRINDOD WELLS, LD1 6EA

Change of use and conversion of former vets to dwelling, reinstatement and extension to former dwelling, installation of package treatment plant and a...

Full planning permission Powys 29 Apr 2026
P/26/0146/HH 29 Apr 2026 Under Consultation

23 HEOL Y DOLL, MACHYNLLETH, SY20 8BH

Internal works and alterations to outbuilding

Householder planning permission Powys 29 Apr 2026
P/26/0149/LBC 29 Apr 2026 Under Consultation

23 HEOL Y DOLL, MACHYNLLETH, SY20 8BH

External and Internal works and alterations to outbuilding including the erection of a timber frame to be built on top of remaining wall to support ro...

Listed Building Consent Powys 29 Apr 2026
P/26/0090/HH 27 Apr 2026 Under Consultation

GLASWAIN, LLANDEFALLE, BRECON, LD3 0NA

Erection of two-storey extension

Householder planning permission Powys 27 Apr 2026
P/26/0224/HH 27 Apr 2026 Under Consultation

OLD SCHOOL HOUSE, TREGYNON, NEWTOWN, SY16 3EL

Proposed extension with demolition of single storey, and associated works

Householder planning permission Powys 27 Apr 2026
P/26/0091/HH 27 Apr 2026 Under Consultation

BRYN EIRIAN, LLANSANTFFRAID-YM-MECHAIN, SY22 6TS

Demolition of existing conservatory, chimney and alterations to windows

Householder planning permission Powys 27 Apr 2026
P/26/0050/FUL 23 Apr 2026 Under Consultation

SEWAGE DISPOSAL WORKS, HENFAES LANE, WELSHPOOL

Refurbishment / alterations of site workshop

Full planning permission Powys 23 Apr 2026
P/26/0209/FUL 21 Apr 2026 Under Consultation

Land at Pant Y Dwr, Rhayader, LD6 5LW

Siting of 2 holiday units, erection of games room, extension of access tracks, sewage treatment plant and all associated works

Full planning permission Powys 21 Apr 2026
P/26/0001/HH 20 Apr 2026 Under Consultation

BLAEN Y GORS FARM, YSTRADGYNLAIS, SWANSEA, SA9 1PY

Rear, side and front extensions with installation of 3 rooflights and first floor balcony

Householder planning permission Powys 20 Apr 2026
P/26/0006/FUL 20 Apr 2026 Under Consultation

LOWER CEFN PENARTH, OLD HALL, LLANIDLOES, SY18 6NZ

Proposed Extension to Existing Farm Outbuilding

Full planning permission Powys 20 Apr 2026
P/26/0205/CAC 20 Apr 2026 Under Consultation

8 SMITHFIELD STREET, LLANIDLOES, SY18 6EJ

Alterations to dwelling involving replacement chimney, new front door and new step, new roof slates, 2 roof lights and new gutters & downpipes

Conservation Area Consent Powys 20 Apr 2026
P/26/0183/HH 16 Apr 2026 Under Consultation

11 TREGARTH, MACHYNLLETH, SY20 8HT

Demolition of existing extension and erection of new side extension

Householder planning permission Powys 16 Apr 2026
P/26/0187/LBC 16 Apr 2026 Under Consultation

OLD POST OFFICE, GLADESTRY, KINGTON, HR5 3NR

Internal works including block up two doorways as well as disconnecting electrical and heating supply

Listed Building Consent Powys 16 Apr 2026
P/26/0014/FUL 15 Apr 2026 Under Consultation

CENTRE FOR ALTERNATIVE TECHNOLOGY, PANTPERTHOG, MACHYNLLETH, SY20 9AZ

Change of use of 8 cottage structures from C3 dwelling house use to C1 (overnight accommodation) and B8 (storage) including refurbishment of 3 existin...

Full planning permission Powys 15 Apr 2026
P/26/0161/HH 15 Apr 2026 Under Consultation

TALL BIRCHES, NEWCHURCH, KINGTON, HEREFORD, HR3 6JJ

Erection of extension including existing alterations with some demolition

Householder planning permission Powys 15 Apr 2026
P/26/0154/HH 14 Apr 2026 Under Consultation

MINAFON, CHURCH STREET, LLANRHAEADR-YM-MOCHNANT, OSWESTRY, SY10 0JW

Erection of external staircase together with replacement windows and associated works

Householder planning permission Powys 14 Apr 2026
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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 — taller, larger, 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 with objections) 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.