House extensions in Test Valley

Test Valley received 534 householder applications in the last 12 months - about 10 a week. Rear extensions and garage works are the most common. Of the 317 decided so far, 304 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 186 applications
Yesterday Current 26/01967/CLPN

River Cottage Goodworth Clatford Andover Hampshire SP11 7QX

Certificate of proposed lawful development for the change from wheat straw to water reed as part of works to replace the top layer of thatch

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
2 days ago Current 26/01957/FULLN

Copters 2 Drove Hill Chilbolton Stockbridge Hampshire SO20 6AR

Two storey front extension and single storey porch extension

FULL APPLICATION - NORTH Test Valley
2 days ago Current 26/01966/LBWN

Freemantle King Lane Over Wallop Stockbridge Hampshire SO20 8JE

Retention of minor internal alterations including a ground floor study partition, first floor shower inserted into linen cupboard space and limited da...

LISTED BUILDING WORKS - NORTH Test Valley
2 days ago Current 26/01960/FULLS

Heatherbank 1 Beechwood Close Chandler's Ford Eastleigh Hampshire SO53 5PB

Rear infill extension, first floor extension, addition of front and rear dormers and alterations to roof, chimney and fenestration

FULL APPLICATION - SOUTH Test Valley
8 Sept 2026 Current 26/01834/FULLS

2 Firgrove Close North Baddesley Southampton Hampshire SO52 9JP

Demolition of conservatory, erection of extension and loft conversion involving increase in ridge height and the erection of dormer extensions

FULL APPLICATION - SOUTH Test Valley
8 Sept 2026 Current 26/01948/FULLS

40 Home Field Drive Nursling Southampton Hampshire SO16 0TH

Erect single storey rear extension and infill window and door

FULL APPLICATION - SOUTH Test Valley
8 Sept 2026 Current 26/01952/FULLN

16 Winton Chase Andover Hampshire SP10 2SE

Single storey rear extension to replace conservatory

FULL APPLICATION - NORTH Test Valley
7 Sept 2026 Current 26/01945/FULLN

29 Longstock Road Longstock Stockbridge Hampshire SO20 6DR

Replacement of existing access path and area of hardstanding with new relocated path and improvements to existing parking area.

FULL APPLICATION - NORTH Test Valley
7 Sept 2026 Current 26/01670/CLPN

Town Mills Pocket Park Western Avenue Andover Hampshire

Application for lawful development certificate for proposed temporary electric conical tree and associated wooden security fencing

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
4 Sept 2026 Current 26/01882/FULLN

29 Rooksbury Road Andover Hampshire SP10 2LP

Erection of car port on front drive

FULL APPLICATION - NORTH Test Valley
4 Sept 2026 Current 26/01936/FULLS

76 Bodding Avenue Nursling Southampton Hampshire SO16 0BJ

Convert garage to living accommodation and extend driveway

FULL APPLICATION - SOUTH Test Valley
2 Sept 2026 Current 26/01901/FULLS

Squirrels Gate Romsey Road East Wellow Romsey Hampshire SO51 6BG

Proposed roof extension to form front gable

FULL APPLICATION - SOUTH Test Valley
2 Sept 2026 Current 26/01910/FULLS

Drove Farm Cottage Dean Road West Dean Salisbury Hampshire SP5 1JW

Erect oak framed garage

FULL APPLICATION - SOUTH Test Valley
2 Sept 2026 Current 26/01887/FULLN

Davelina Bullington Lane Sutton Scotney Winchester Hampshire SO21 3RA

Create an access and dropped kerb from Davelina onto Bullington Lane

FULL APPLICATION - NORTH Test Valley
1 Sept 2026 Current 26/01870/FULLN

Rylands 6 Aylwards Way Nether Wallop Stockbridge Hampshire SO20 8HB

Demolition of outbuilding, erection of single storey rear extension and side porch, replace ramped access with stairs and install raised decking

FULL APPLICATION - NORTH Test Valley
1 Sept 2026 Current 26/01891/CLPN

6 Balmoral Road Andover Hampshire SP10 3HY

Certificate of proposed lawful development for a single storey rear extension

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
28 Aug 2026 Current 26/01885/FULLN

1 Shears Road Andover Hampshire SP11 6DY

Replacement solid roof to rear conservatory

FULL APPLICATION - NORTH Test Valley
27 Aug 2026 Current 26/01876/FULLN

42 Greensey Ragged Appleshaw Andover Hampshire SP11 9HY

Creation of raised rear patio area with associated retaining structure, steps and planters

FULL APPLICATION - NORTH Test Valley
26 Aug 2026 Current 26/01684/LBWN

4 High Street Andover Hampshire SP10 1NX

Replacement of two external doors

LISTED BUILDING WORKS - NORTH Test Valley
26 Aug 2026 Current 26/01799/FULLS

1 Ashwood Cottages Green Lane Ampfield Romsey Hampshire SO51 9BN

Erect single storey double garage

FULL APPLICATION - SOUTH Test Valley
25 Aug 2026 Current 26/01800/FULLS

2 Ashwood Cottages Green Lane Ampfield Romsey Hampshire SO51 9BN

Erect single storey double garage

FULL APPLICATION - SOUTH Test Valley
25 Aug 2026 Current 26/01859/FULLS

26 Taw Drive Chandler's Ford Eastleigh Hampshire SO53 4SL

Demolition of existing conservatory and front porch and erection of single storey rear extension and front hall extension with render to first floor w...

FULL APPLICATION - SOUTH Test Valley
25 Aug 2026 Current 26/01852/CLPN

14 Wolversdene Close Andover Hampshire SP10 2AZ

Application for lawful development certificate for proposed timber garden structure

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
25 Aug 2026 Current 26/01857/FULLS

Site Of Tin Tabernacle Salisbury Road Sherfield English Romsey Hampshire SO51 6FL

Renovation, extension and change of use of Tin Tabernacle building to be used as a single dwelling, with associated engineering, access and landscape ...

FULL APPLICATION - SOUTH Test Valley
24 Aug 2026 Current 26/01831/LBWN

Mulberry House High Street Stockbridge Hampshire SO20 6EY

Installation of stairlift

LISTED BUILDING WORKS - NORTH Test Valley
24 Aug 2026 Current 26/01844/FULLS

1 St Evox Close Rownhams Southampton Hampshire SO16 8FS

Garage conversion including removal of garage door and installation of window

FULL APPLICATION - SOUTH Test Valley
24 Aug 2026 Current 26/01840/CLPS

Sheldons Maurys Lane West Wellow Romsey Hampshire SO51 6DA

Certificate of proposed lawful development for a rear dormer window and ground floor side extension

LAWFULNESS OF PROPOSED DEV - SOUTH Test Valley
24 Aug 2026 Current 26/01841/CLPN

94 Lords Way Andover Hampshire SP11 6FQ

Application for lawful development certificate for proposed single storey rear extension

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
24 Aug 2026 Current 26/01850/LBWN

St Peters Church Church Lane Goodworth Clatford Andover Hampshire SP11 7SF

Replacement of lead roof over South aisle of St Peters Church

LISTED BUILDING WORKS - NORTH Test Valley
24 Aug 2026 Current 26/01339/FULLS

8 Wild Arum Way Chandler's Ford Eastleigh Hampshire SO53 4LU

Garage conversion including removal of garage door, bricking up and installation of window

FULL APPLICATION - SOUTH Test Valley
21 Aug 2026 Current 26/01791/FULLN

34 May Tree Road Andover Hampshire SP10 3DZ

Single storey rear extension

FULL APPLICATION - NORTH Test Valley
20 Aug 2026 Current 26/01819/FULLN

Newfields 10 Chestnut Avenue Andover Hampshire SP10 2HE

First-floor side extension above garage, internal loft conversion and associated rooflights

FULL APPLICATION - NORTH Test Valley
20 Aug 2026 Current 26/01824/FULLS

Victoria House Winchester Road Ampfield Romsey Hampshire SO51 9BQ

Detached 2 bay oak-framed carport

FULL APPLICATION - SOUTH Test Valley
20 Aug 2026 Current 26/01820/CLPN

Newfields 10 Chestnut Avenue Andover Hampshire SP10 2HE

Application for certificate of lawfulness for proposed roof dormer

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
20 Aug 2026 Current 26/01818/FULLN

62 London Road Andover Hampshire SP10 2PR

Single storey kitchen extension and replacement flat roof to pitched roof

FULL APPLICATION - NORTH Test Valley
20 Aug 2026 Current 26/01828/FULLN

Pathways Little Drove Road Chilbolton Stockbridge Hampshire SO20 6AN

Proposed replacement solid roof and glazing to existing rear conservatory.

FULL APPLICATION - NORTH Test Valley
19 Aug 2026 Current 26/01528/FULLS

2 Bakers Drove Rownhams Southampton Hampshire SO16 8AD

Single storey rear extension and garage door removal keeping existing roof intact and installing associated elevational updates

FULL APPLICATION - SOUTH Test Valley
19 Aug 2026 Current 26/01538/FULLS

Hillside Nursery The Banks Lockerley Hampshire

Demolition of stable and outbuilding, change of use to single pitch traveller site with siting of mobile home, erection of dayroom, gate and fencing, ...

FULL APPLICATION - SOUTH Test Valley
19 Aug 2026 Current 26/01772/LBWN

Shilling Cottage Monxton Road Abbotts Ann Andover Hampshire SP11 7BA

Installation of through floor lift

LISTED BUILDING WORKS - NORTH Test Valley
19 Aug 2026 Current 26/01802/FULLN

26 Longstock Road Longstock Stockbridge Hampshire SO20 6DR

New vehicle entrance and parking for 2 vehicles and erection of shed following removal of 2 sheds

FULL APPLICATION - NORTH Test Valley
19 Aug 2026 Current 26/01811/FULLN

9 Ox Drove Picket Piece Andover Hampshire SP11 6ND

Removal of existing boundary hedging and five bar gate, erection of new boundary wall with piers and solid timber gate

FULL APPLICATION - NORTH Test Valley
17 Aug 2026 Current 26/01792/FULLN

Wych Elm House Wildhern Andover Hampshire SP11 0JE

First floor rear extension, addition of ground floor window, side extension to garage to form home office/gym

FULL APPLICATION - NORTH Test Valley
17 Aug 2026 Current 26/01793/LBWS

National Trust Mottisfont Abbey Mottisfont Village Road Mottisfont Romsey Hampshire SO51 0LP

Replacement and conservation on a like-for-like basis of 12 rosettes

LISTED BUILDING WORKS - SOUTH Test Valley
17 Aug 2026 Current 26/01617/LBWN

Church Cottage Vernham Street Andover Hampshire SP11 0EL

Replacement of existing ground floor windows with purpose-made painted softwood timber windows finished externally in cream (Low White) with black win...

LISTED BUILDING WORKS - NORTH Test Valley
17 Aug 2026 Current 26/01723/FULLS

37 Station Road Romsey Hampshire SO51 8DP

Loft conversion with rear dormer and front velux windows

FULL APPLICATION - SOUTH Test Valley
14 Aug 2026 Current 26/01508/FULLS

22A Hoe Lane North Baddesley Southampton Hampshire SO52 9NH

Erection of a pre-fabricated garage structure on one of 2 parking spaces owned by 22A

FULL APPLICATION - SOUTH Test Valley
14 Aug 2026 Current 26/01775/LBWN

Kings Farm House Station Road Over Wallop Stockbridge Hampshire SO20 8HZ

Partial re-building of front garden wall

LISTED BUILDING WORKS - NORTH Test Valley
14 Aug 2026 Current 26/01774/FULLN

Kings Farm House Station Road Over Wallop Stockbridge Hampshire SO20 8HZ

Partial re-building of front garden wall

FULL APPLICATION - NORTH Test Valley
14 Aug 2026 Current 26/01778/FULLN

The George George Yard Andover Hampshire SP10 1PD

Addition of door to facilitate a sub-division of existing retail unit to form 2 retail units

FULL APPLICATION - NORTH Test Valley
14 Aug 2026 Current 26/01779/LBWN

The George George Yard Andover Hampshire SP10 1PD

Internal alterations and addition of door to facilitate a sub-division of existing retail unit to form 2 retail units

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

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