House extensions in Winchester

Winchester received 443 householder applications in the last 12 months - about 9 a week. Rear extensions and garage works are the most common. Of the 270 decided so far, 260 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 101 applications
2 days ago Current 26/01166/HOU

1A Donigers Close Swanmore Southampton Hampshire SO32 2QJ

Demolition of existing store building and construction of new garage.

Householder Application Winchester
8 Sept 2026 Current 26/01683/HOU

West View Winchester Road Shedfield Southampton Hampshire SO32 2JF

Erection of a first-floor rear extension with associated roof alterations.

Householder Application Winchester
8 Sept 2026 Current 26/01737/HOU

4 Leafy Lane Whiteley Fareham Hampshire PO15 7HL

Single Storey Rear Extension, conservatory demolition

Householder Application Winchester
8 Sept 2026 Current 26/01773/HOU

The Cottage St Johns Lane Shedfield Southampton Hampshire SO32 2TA

Alterations and extensions to the existing dwelling, construction of a detached three-bay carport and detached ancillary accommodation with associated...

Householder Application Winchester
8 Sept 2026 Current 26/01726/HOU

Forest Lodge Mislingford Road Swanmore Southampton Hampshire SO32 2QD

Erection of Timber Garden Room following demolition of existing Structure

Householder Application Winchester
8 Sept 2026 Current 26/01768/HOU

Bramwell Winchester Road Waltham Chase Southampton Hampshire SO32 2LG

Demolition of existing conservatory and erection of a single-storey rear extension, installation of a rooflight and alterations to fenestration.

Householder Application Winchester
7 Sept 2026 Current 26/01464/HOU

Highview Swanmore Road Swanmore Southampton Hampshire SO32 2QH

Single and two storey side and rear extensions. Replacement garage with home gym and storage/games space in attic.

Householder Application Winchester
2 Sept 2026 Current 26/01431/FUL

Clarendon House Southdown Road Shawford Winchester Hampshire SO21 2BY

Proposed single storey extension at Clarendon House. Relocation of the existing boundary line and fence between Clarendon House and Bridleway. Demolit...

Full Application Winchester
2 Sept 2026 Current 26/01723/HOU

76 Lovedon Lane Kings Worthy Winchester Hampshire SO23 7NS

Erection of a single storey enclosed front porch.

Householder Application Winchester
1 Sept 2026 Current 26/01456/FUL

Veterinary Hospital And Equine Unit Botley Road Shedfield Southampton Hampshire SO32 2JG

Relocation of two existing AC units, installation of two new external entrance/exit doors and construction of new external path to replace existing br...

Full Application Winchester
27 Aug 2026 Current 26/01694/LDP

Breach Farm Bighton Hampshire

Single storey Bat Roost shed

Lawful Development Certificate-Proposed Winchester
26 Aug 2026 Current 26/01398/HOU

Eastways Lower Chase Road Swanmore Southampton Hampshire SO32 2PB

Two storey side extension, roof replacement to rear, new front entrance porch & new gates to existing vehicular & pedestrian access.

Householder Application Winchester
26 Aug 2026 Current 26/01548/HOU

16 St Swithun Close Bishops Waltham Southampton Hampshire SO32 1JY

Two-storey side extension

Householder Application Winchester
25 Aug 2026 Current 26/01776/HOU

Old Bowling Green Woodman Close Sparsholt Winchester Hampshire SO21 2NT

Replacement single-storey rear extension, porch to the front elevation of the property

Householder Application Winchester
25 Aug 2026 Current 26/01410/LIS

Flat 1 Old Market House Market Street Winchester Hampshire SO23 9AJ

Replace single glazed sash windows with Accoya slimline 12mm double glazed sashes to match the original. The replacement sashes will be fitted into th...

Listed Building Winchester
25 Aug 2026 Current 26/01670/HOU

Commons End 28 Main Road Colden Common Winchester Hampshire SO21 1RR

Single storey side/rear extensions, roof reconfiguration and elevational alterations

Householder Application Winchester
24 Aug 2026 Current 26/01745/HOU

The Burh 12 Main Road Littleton Winchester Hampshire SO22 6PS

Alterations to the existing roof form. Erection of a single storey porch extension and open carport. Demolition of existing small rear conservatory an...

Householder Application Winchester
24 Aug 2026 Current 26/00187/FUL

Hogget And Boar Butchers London Road Kings Worthy Winchester Hampshire SO23 7QN

Single storey rear extension, roof extension and reconfiguration of existing building to provide for total of 5 residential flats.

Full Application Winchester
21 Aug 2026 Current 26/01347/HOU

7 Knowle Avenue Knowle Fareham Hampshire PO17 5LG

Replacement of window to the rear elevation with doors and removal of a window to the (side) Southwest elevation.

Householder Application Winchester
21 Aug 2026 Current 26/01427/HOU

9 Badgers Bolt Colden Common Winchester Hampshire SO21 1GB

Garage conversion to habital floor space (includes minor elevational alterations).

Householder Application Winchester
21 Aug 2026 Current 26/01482/HOU

High Trees Clewers Lane Waltham Chase Southampton Hampshire SO32 2LP

Attached one and one half storey garage with incidental floor space to first floor and roof dormers.

Householder Application Winchester
21 Aug 2026 Current 26/01498/HOU

Windy Ridge Outlands Lane Curdridge Southampton Hampshire SO30 2HD

Porch and landscaping detail to frontage

Householder Application Winchester
21 Aug 2026 Current 26/01503/HOU

17 St Bonnet Drive Bishops Waltham Southampton Hampshire SO32 1SY

Single storey rear extension

Householder Application Winchester
21 Aug 2026 Current 26/01632/HOU

36 Mead End Road Denmead Waterlooville Hampshire PO7 6PZ

Single storey front link extension from from dwelling to existing detached garage/ store (and minor elevational alterations).

Householder Application Winchester
21 Aug 2026 Current 26/01738/LIS

Chase Mill Winchester Road Bishops Waltham Southampton Hampshire SO32 1AH

Changes to the internal layout and installation of patio doors

Listed Building Winchester
20 Aug 2026 Current 26/01506/HOU

32 Union Street Winchester Hampshire SO23 8DU

Loft conversion

Householder Application Winchester
20 Aug 2026 Withdrawn 26/01439/HOU

90 Stanmore Lane Winchester Hampshire SO22 4BT

Single storey 3m rear infill extension and associated alterations.

Householder Application Winchester
17 Aug 2026 Current 26/01559/LDP

4 Gladstone Street Winchester Hampshire SO23 8TQ

Enlargement of existing rear dormer.

Lawful Development Certificate-Proposed Winchester
12 Aug 2026 Current 26/01684/HOU

Lawn House Main Road Northington Down Alresford Hampshire SO24 9TZ

Demolition of existing garage and replacement with timber ancillary building. Installation of tennis court on adjacent lawn area.

Householder Application Winchester
10 Aug 2026 Current 26/01627/LIS

38 West Street Alresford Hampshire SO24 9AU

Redecoration of external timberwork and rendering.

Listed Building Winchester
9 Aug 2026 Awaiting decision 26/01369/LIS

115 Duke Street Micheldever Winchester Hampshire SO21 3DF

Kitchen refurbishment. Removal and replacement of existing kitchen flooring. As part of the installation of new canopy hood extractor, a discreet exte...

Listed Building Winchester
6 Aug 2026 Current 26/01626/HOU

128 Stockbridge Road Winchester Hampshire SO22 6RN

Rear orangery.

Householder Application Winchester
5 Aug 2026 Current 26/01477/FUL

99 High Street Winchester Hampshire SO23 9AH

Removal of glazing to shopfront and replaced with sliding sash windows

Full Application Winchester
3 Aug 2026 Current 26/01594/HOU

The Nook Kytes Lane Durley Southampton Hampshire SO32 2AE

Partial demolition of the existing single storey rear extension and erection of a two storey extension

Householder Application Winchester
3 Aug 2026 Current 26/01588/HOU

32 Rosebery Road Alresford Hampshire SO24 9HQ

Erection of greenhouse to rear garden.

Householder Application Winchester
31 Jul 2026 Awaiting decision 26/01397/LDP

St Johns Uplands Road Denmead Waterlooville Hampshire PO7 6HE

Small lounge extension, replacing existing conservatory. New lounge extension built in footprint of existing conservatory.

Lawful Development Certificate-Proposed Winchester
31 Jul 2026 Current 26/01572/HOU

127 Olivers Battery Road South Olivers Battery Winchester Hampshire SO22 4HB

Single storey rear extension, construction of new front entrance porch, garden shed and changes to wall finishes.

Householder Application Winchester
31 Jul 2026 Current 26/01121/FUL

Al Mahdi Centre Fontley Road Titchfield Fareham Hampshire PO15 6QR

Extension and alterations of existing building, erection of a pavilion, change of use of land to burial ground and widening of existing access

Full Application Winchester
30 Jul 2026 Current 26/01561/HOU

Hurdle Croft Hurdle Way Compton Down Winchester Hampshire SO21 2AW

Demolition of Existing Rear Single Storey Extension and Erection of Rear Single Storey Extension

Householder Application Winchester
30 Jul 2026 Current 26/01295/HOU

16 Parchment Street Winchester Hampshire SO23 8AZ

outbuilding garden shed

Householder Application Winchester
30 Jul 2026 Current 26/01250/FUL

The White Horse Main Road Otterbourne Winchester Hampshire SO21 2EQ

Single storey ground floor bar extension with minor internal alterations to the bar servery

Full Application Winchester
29 Jul 2026 Approved 26/01549/APN

Enmill Farm Enmill Lane Pitt Winchester Hampshire SO22 5QR

Steel portal framed shed as per proposed drawings.

Agricultural Prior Notification Winchester
29 Jul 2026 Current 26/01558/HOU

Cranford The Plantation Curdridge Southampton Hampshire SO32 2DT

Proposed single rear extension, loft conversion with associated dormers, new entrance porch, bay window, and other fenestration adjustments.

Householder Application Winchester
29 Jul 2026 Current 26/01055/HOU

5 Colville Drive Bishops Waltham Southampton Hampshire SO32 1LS

Proposed Single Storey Front Extension (to replace existing canopy porch) and Proposed Single Storey Rear/Side Extension

Householder Application Winchester
29 Jul 2026 Current 26/01081/LIS

7 Hall Court Botley Road Shedfield Southampton Hampshire SO32 2HL

Internal alterations to main house with external alterations to include new pipework (SVPs) and extractor fans to the roof and elevations. Includes th...

Listed Building Winchester
29 Jul 2026 Current 26/01080/HOU

7 Hall Court Botley Road Shedfield Southampton Hampshire SO32 2HL

Internal alterations to main house with external alterations to include new pipework (SVPs) and extractor fans to the roof and elevations. Includes th...

Householder Application Winchester
29 Jul 2026 Current 26/01406/LIS

New Place Hotel New Place High Street Shirrell Heath Southampton Hampshire SO32 2JY

Repairs to the roof to include replacement of broken tiles, damaged bricks, Lead DPC. Re-decoration of rainwater goods.

Listed Building Winchester
28 Jul 2026 Current 26/01314/FUL

Office Pod Forum 3 Parkway Whiteley Hampshire

Siting of office pod

Full Application Winchester
27 Jul 2026 Current 26/01534/HOU

12 Boyne Rise Kings Worthy Winchester Hampshire SO23 7RE

Proposed 5 m single storey side extension with minor internal and external alterations

Householder Application Winchester
24 Jul 2026 Current 26/01528/HOU

Ladywell House Ladywell Lane Alresford Hampshire SO24 9DF

Replacement detached garage

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

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