House extensions in Test Valley

Test Valley received 657 householder applications in the last 12 months - about 13 a week. Rear extensions and garage works are the most common. Of the 454 decided so far, 438 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 189 applications
Yesterday Current 26/02377/FULLN

42 Vigo Road Andover Hampshire SP10 1HW

Erection of front porch

FULL APPLICATION - NORTH Test Valley
Yesterday Current 26/02373/FULLS

8 Leven Close Chandler's Ford Eastleigh Hampshire SO53 4SH

Erection of a detached outbuilding

FULL APPLICATION - SOUTH Test Valley
Yesterday Current 26/02372/FULLS

Redwoods Chilworth Road Chilworth Southampton Hampshire SO16 7LA

Erection of single storey porch, alterations to fenestration, installation of rooflights and associated soft landscaping/planting

FULL APPLICATION - SOUTH Test Valley
Yesterday Current 26/02340/FULLN

Kambia Western Road Andover Hampshire SP10 2JQ

Single storey front extension to form enlarged kitchen/dining room and enlarged window to side elevation

FULL APPLICATION - NORTH Test Valley
Yesterday Current 26/02364/FULLS

Osmington Mill Lane Romsey Hampshire SO51 8EQ

Rear ground floor extension and a hip to gable loft conversion with rear dormer, alterations to fenestration and rooflights to the front roof slope

FULL APPLICATION - SOUTH Test Valley
23 Oct 2026 Current 26/02358/FULLN

1 The Gardens Cocum Road Barton Stacey Winchester Hampshire SO21 3RP

Demolition of conservatory and side extension and erection of two storey extension, demolition of garage and erection of car port

FULL APPLICATION - NORTH Test Valley
23 Oct 2026 Current 26/02314/FULLN

2 Kings Elms Barton Stacey Winchester Hampshire SO21 3RG

Creation of driveway and access including dropped kerb and crossover

FULL APPLICATION - NORTH Test Valley
22 Oct 2026 Current 26/02357/FULLN

39 Olympic Park Road Andover Hampshire SP11 6RX

Erection of a single storey side extension

FULL APPLICATION - NORTH Test Valley
22 Oct 2026 Current 26/02347/FULLS

1 Lukin Drive Nursling Southampton Hampshire SO16 0TN

Conversion of garage to snug and utility

FULL APPLICATION - SOUTH Test Valley
22 Oct 2026 Current 26/02341/FULLN

4 Toledo Grove Andover Hampshire SP10 1JP

Formation of a vehicular access, installation of dropped kerb and drainage, construction of a hard-surfaced driveway and erection of front garden fenc...

FULL APPLICATION - NORTH Test Valley
21 Oct 2026 Current 26/02335/FULLN

Ashbourne Court Care Centre 13 Salisbury Road Andover Hampshire SP10 2JJ

Application to enlarge two existing windows on North Elevation of Block A, Ashbourne Court Care Home. There will be no change to the building footprin...

FULL APPLICATION - NORTH Test Valley
21 Oct 2026 Current 26/02313/LBWN

2 Manor Cottages Stanbury Road Thruxton Andover Hampshire SP11 8NN

Like-for-like replacement front and back doors and single window casement

LISTED BUILDING WORKS - NORTH Test Valley
20 Oct 2026 Current 26/02297/FULLN

38 Windsor Road Andover Hampshire SP10 3HX

Dining room extension to replace former garage

FULL APPLICATION - NORTH Test Valley
20 Oct 2026 Current 26/02332/FULLN

1 Stourhead Close Andover Hampshire SP10 3UP

Single storey side/rear extension to form TV room/study

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02324/FULLN

The Woodhouse 2 Racedown Cottages Thruxton Down Road Thruxton Down Andover Hampshire SP11 8PP

Single storey side extension

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02326/FULLN

12 Hawthorne Close Grateley Andover Hampshire SP11 8JL

Proposed replacement solid roof and glazing to existing rear conservatory

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02319/LBWN

Old Rectory Stockbridge Road Leckford Stockbridge Hampshire SO20 6JF

External damp-proofing works, drainage and roof finish replacement

LISTED BUILDING WORKS - NORTH Test Valley
19 Oct 2026 Current 26/02318/FULLN

Old Rectory Stockbridge Road Leckford Stockbridge Hampshire SO20 6JF

External damp-proofing works, drainage and roof finish replacement

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02316/FULLN

7 Croft Avenue Andover Hampshire SP10 2EL

Two-storey rear extension, removal of chimneys and alterations to fenestration

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02312/FULLN

Beachwood Bungalow 24 Walworth Road Picket Piece Andover Hampshire SP11 6LY

Single storey side/front and side/rear extensions with internal alterations

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02310/FULLN

Wallop Road Barn Wallop Road Grateley Hampshire

Car port and store with first floor accommodation

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02309/FULLS

8 Manor Road East Tytherley Salisbury Hampshire SP5 1LN

Two storey side extension, single storey rear extension, erection of entrance canopy, installation of Juliette balcony to rear and alterations to fene...

FULL APPLICATION - SOUTH Test Valley
19 Oct 2026 Current 26/02308/FULLN

Pippins Vernham Street Andover Hampshire SP11 0EL

Two storey extension, replace conservatory glazing with brickwork and solid roof, replace front porch, convert garage, install roof light, inverted do...

FULL APPLICATION - NORTH Test Valley
19 Oct 2026 Current 26/02260/FULLS

106 St Blaize Road Romsey Hampshire SO51 7LW

Single storey front extension

FULL APPLICATION - SOUTH Test Valley
19 Oct 2026 Current 26/02284/CLPS

9 Winstone Crescent North Baddesley Southampton Hampshire SO52 9LS

Certificate of proposed lawful development for a single storey rear extension

LAWFULNESS OF PROPOSED DEV - SOUTH Test Valley
16 Oct 2026 Current 26/02290/FULLN

1 Ridges View Frenches Farm Lane Little London Andover Hampshire SP11 6JF

Single storey side extension to form enlarged kitchen and living room

FULL APPLICATION - NORTH Test Valley
16 Oct 2026 Current 26/02303/CLPN

1 Woodwalk Cottages Woodwalk Longparish Andover Hampshire SP11 6QG

Application for lawful development certificate for proposed use of land to station a mobile home granny annexe for use incidental to the main dwelling

LAWFULNESS OF PROPOSED DEV - NORTH Test Valley
16 Oct 2026 Current 26/02293/FULLS

Mulberry House Frenchmoor Lane West Tytherley Salisbury Hampshire SP5 1GZ

Alterations and extensions including associated landscaping works

FULL APPLICATION - SOUTH Test Valley
16 Oct 2026 Current 26/02287/LBWS

6 Stanbridge Manor Mortimer Drive Romsey Hampshire SO51 0DW

Installation of a chair lift

LISTED BUILDING WORKS - SOUTH Test Valley
16 Oct 2026 Current 26/02199/CLPS

26 And 28 Kennett Road Romsey Hampshire SO51 5PQ

Application for a certificate of lawfulness for single storey side extension to 28 Kennett Road, and loft conversion, loft access, dormers and rooflig...

LAWFULNESS OF PROPOSED DEV - SOUTH Test Valley
16 Oct 2026 Current 26/02077/FULLN

Yew Trees Newbury Hill Penton Mewsey Andover Hampshire SP11 0RW

Erection of garage, boot room and extension to annexe, installation of swimming pool and patio area

FULL APPLICATION - NORTH Test Valley
15 Oct 2026 Current 26/02281/FULLS

17 Crummock Road Chandler's Ford Eastleigh Hampshire SO53 4SG

First floor side extension above garage

FULL APPLICATION - SOUTH Test Valley
14 Oct 2026 Current 26/02278/FULLS

Abbotswood House Cottage Braishfield Road Romsey Hampshire SO51 0PB

Single storey rear extension, elevational alterations, conversion of the existing garage to habitable use, and revised location of the existing vehicu...

FULL APPLICATION - SOUTH Test Valley
14 Oct 2026 Current 26/02271/FULLS

3 Hestia Close Romsey Hampshire SO51 8PA

Garage conversion

FULL APPLICATION - SOUTH Test Valley
14 Oct 2026 Current 26/02268/LBWN

6 And 6A Bridge Street Andover Hampshire SP10 1BH

Internal alterations to facilitate the change of use of first floor commercial store to dwelling and subdivision of second floor flat to two residenti...

LISTED BUILDING WORKS - NORTH Test Valley
14 Oct 2026 Current 26/02267/FULLN

6 And 6A Bridge Street Andover Hampshire SP10 1BH

Change of use of first floor commercial store to dwelling, subdivide second floor flat to two residential dwellings, alterations to fenestration and i...

FULL APPLICATION - NORTH Test Valley
13 Oct 2026 Current 26/02266/FULLS

7 Collingbourne Drive Chandler's Ford Eastleigh Hampshire SO53 4SW

Replace rear conservatory with new orangery construction

FULL APPLICATION - SOUTH Test Valley
13 Oct 2026 Current 26/02263/FULLN

Grove Lodge Orange Grove Palestine Andover Hampshire SP11 7FB

Two storey and single storey extension incorporating partial demolition of garage, installation of dormers and alterations to fenestration

FULL APPLICATION - NORTH Test Valley
13 Oct 2026 Current 26/02262/FULLN

Ash Grove Upper Clatford Andover Hampshire SP11 7PS

Replace rear conservatory with single storey rear extension, single storey side extension and proposed oak porch to front of property

FULL APPLICATION - NORTH Test Valley
13 Oct 2026 Current 26/02261/PDHN

5 Millway Road Andover Hampshire SP10 3EU

Application to determine if prior approval is required for proposed single storey extension (length from rear wall of original dwellinghouse 5 metres,...

PERMITTED DEVELOPMENT HOUSEHOLDER - NORT Test Valley
13 Oct 2026 Current 26/02254/FULLS

4 Stanbridge Lakes Awbridge Romsey Hampshire SO51 0GY

Replacement of original bulstrades, and replacement windows and doors on west and rear elevations

FULL APPLICATION - SOUTH Test Valley
13 Oct 2026 Current 26/02250/FULLN

12 Farm Road Little Park Andover Hampshire SP11 7AU

Retention of carport and garage with storage area over

FULL APPLICATION - NORTH Test Valley
13 Oct 2026 Current 26/02072/LBWS

Managers Flat The Old Village Store Winchester Road Ampfield Romsey Hampshire SO51 9BQ

Replacement of oil-fired boiler with two Air Source Heat Pump units with associated bases and routing of pipework and electrical cabling, installation...

LISTED BUILDING WORKS - SOUTH Test Valley
13 Oct 2026 Current 26/01975/FULLS

45 Calshot Drive Chandler's Ford Eastleigh Hampshire SO53 3NY

Change of use of land and erection of single-storey side extension

FULL APPLICATION - SOUTH Test Valley
12 Oct 2026 Current 26/01611/FULLS

Holbury View East Dean Road Lockerley Romsey Hampshire SO51 0JQ

Extension to existing dropped kerb (Retrospective)

FULL APPLICATION - SOUTH Test Valley
12 Oct 2026 Current 26/02236/FULLN

Downlands Farm House Cow Down Lane Tangley Andover Hampshire SP11 0SH

Alterations and additions to existing dwelling including new orangery, reconfigured windows, entry porch, roof, dormer window to annexe building and n...

FULL APPLICATION - NORTH Test Valley
12 Oct 2026 Current 26/02123/LBWS

Luzborough House Luzborough Lane Romsey Hampshire SO51 9AA

Installation of an air-conditioning unit, introduction of lanterns and wall lights and internal alterations to include refurbishment works, including ...

LISTED BUILDING WORKS - SOUTH Test Valley
9 Oct 2026 Current 26/02218/FULLN

Green Meadows Green Meadow Lane Goodworth Clatford Andover Hampshire SP11 7HH

Erection of an ancillary garden studio building

FULL APPLICATION - NORTH Test Valley
8 Oct 2026 Current 26/02231/FULLS

Buckholt House Buckholt Lane West Tytherley Salisbury Hampshire SP5 1LS

Demolition of existing ancillary barn and erection of replacement ancillary barn

FULL APPLICATION - SOUTH Test Valley
8 Oct 2026 Current 26/02230/FULLS

Buckholt House Buckholt Lane West Tytherley Salisbury Hampshire SP5 1LS

Demolition of existing garage and erection of replacement garage

FULL APPLICATION - SOUTH 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.