House extensions in Eastleigh

Eastleigh received 431 householder applications in the last 12 months - about 8 a week. Rear extensions and garage works are the most common. Of the 356 decided so far, 331 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 116 applications
21 Oct 2026 Valid F/26/102179

1a Belmont Road, Chandler's Ford, Eastleigh, SO53 3EU

Change of use from C3 to Large C4 (7 occupants). Single storey front extension and single storey rear extension.

Change of Use Eastleigh
19 Oct 2026 Valid F/26/102290

Countess Mountbatten House, Moorgreen Hospital, Botley Road, West End, Southampton, SO30 3JB

Installation of 1no. detached cabin within garden

All other Developments Eastleigh
15 Oct 2026 Valid H/26/102246

Bancroft, Winchester Road, Fair Oak, Eastleigh, SO50 7GU

Erection of a single-storey rear extension.

Householder Developments Eastleigh
14 Oct 2026 Valid H/26/102095

14 Holmesland Lane, Botley, Southampton, SO30 2EH

Installation of a 2.7 metre high bioclimatic pergola to the rear of the property, over the existing patio area.

Householder Developments Eastleigh
14 Oct 2026 Valid H/26/102229

103 Hiltingbury Road, Chandler's Ford, Eastleigh, SO53 5NP

Erection of two detached ancillary garden buildings (garden office and garden room with lounge, gym and store) and associated timber decking, followin...

Householder Developments Eastleigh
13 Oct 2026 Valid H/26/102128

38 Pound Road, Bursledon, Southampton, SO31 8FE

Construction of a single-storey rear extension with alterations to fenestration.

Householder Developments Eastleigh
13 Oct 2026 Valid H/26/102186

19 Ladywood, Eastleigh, SO50 4RW

Two-storey side/rear extension

Householder Developments Eastleigh
9 Oct 2026 Valid H/26/102273

6 Merdon Close, Chandler's Ford, Eastleigh, SO53 1EF

First-floor side extension above existing garage, including front dormer, associated external alterations and porch

Householder Developments Eastleigh
9 Oct 2026 Valid F/26/102278

1 Stoneycroft Rise, Chandler's Ford, Eastleigh, SO53 3YU

Construction of open sided canopy for covered car display on land currently used for car storage.

Industry, Storage, Warehousing Eastleigh
8 Oct 2026 Valid F/26/102217

Brendoncare Care Home, Otterbourne Mews, Otterbourne Hill, Otterbourne, Winchester, SO21 2FL

Construction of first floor extension to create 1 x additional bedroom and 2 x meeting rooms.

Dwellings Eastleigh
7 Oct 2026 Valid H/26/102253

Glendower, Grange Road, Netley Abbey, Southampton, SO31 5FF

Erection of detached double garage, internal alterations and changes to the fenestration including materials and windows.

Householder Developments Eastleigh
7 Oct 2026 Valid H/26/101953

3 Park Road, Chandler's Ford, Eastleigh, SO53 2EW

Single storey rear extension. Replacement roof including front and rear facing dormers. New entrance gates, boundary wall and railings to front bounda...

Householder Developments Eastleigh
6 Oct 2026 Valid H/26/102177

18 Malibres Road, Chandler's Ford, Eastleigh, SO53 5DT

Single storey rear extension and changes to the fenestration.

Householder Developments Eastleigh
5 Oct 2026 Valid LDC/26/102240

21 Edward Avenue, Bishopstoke, Eastleigh, SO50 6EH

Lawful Development Certificate for the Proposed loft conversion, incorporating a hip to gable roof enlargement, a rear dormer and 2no. roof lights to ...

Certificate of Lawfulness (CLOPUD) Eastleigh
5 Oct 2026 Valid H/26/102119

17 Western Road, West End, Southampton, SO30 3EN

Construction of a single storey rear and side extension.

Householder Developments Eastleigh
2 Oct 2026 Valid H/26/102234

57 Hamilton Road, Bishopstoke, Eastleigh, SO50 6AT

Demolition of existing conservatory and erection of single storey extension.

Householder Developments Eastleigh
2 Oct 2026 Valid LDC/26/102230

3 Merrieleas Close, Chandler's Ford, Eastleigh, SO53 2FP

Lawful Development Certificate for the Proposed erection of a rear extension to an existing single storey bungalow.

Certificate of Lawfulness (CLOPUD) Eastleigh
2 Oct 2026 Valid F/26/102165

Unit 1, Wellington Park, Hedge End, Southampton, SO30 2QU

External alterations comprising enlargement of an existing roller shutter door opening and installation of a replacement 4m high roller shutter door o...

All other Developments Eastleigh
1 Oct 2026 Valid V/26/102218

111 Winchester Road, Chandler's Ford, Eastleigh, SO53 2GH

Regulation 77 application relating to the conversion and extension of 111 Winchester Road to form 22 dwellings (Prior Approval refs. PN/24/98338, PN/2...

Dwellings Eastleigh
30 Sept 2026 Valid H/26/102134

23 Gresley Gardens, Hedge End, Southampton, SO30 2XG

Single storey rear extension with partial garage conversion, replacing existing conservatory

Householder Developments Eastleigh
30 Sept 2026 Valid H/26/102065

Gainsborough House, Winchester Road, Botley, Southampton, SO32 2DH

Proposed hip-to-gable roof conversion with a rear dormer extension to the existing dwelling.

Householder Developments Eastleigh
30 Sept 2026 Valid H/26/102150

40 Hazel Close, West End, Southampton, SO30 3JP

Single storey rear extension with garage conversion

Householder Developments Eastleigh
30 Sept 2026 Valid F/26/102105

Utilita Bowl, Marshall Drive, West End, Southampton, SO30 3XH

Ground and first floor extension, reconfiguration of internal layout, replacement atrium and plant areas, addition of cladding and other external alte...

All other Developments Eastleigh
30 Sept 2026 Valid L/26/102146

Upcott House, Station Hill, Bursledon, Southampton, SO31 8PQ

Replacement of existing 16no. windows with 5no. white Roseview Heritage Rose vertical sliding sash windows on principle elevation and 11no. white REHA...

Listed building Eastleigh
29 Sept 2026 Valid F/26/102205

Imperial Club, 7-9 Market Street, Eastleigh, SO50 5RH

Installation of plant and extract equipment. Alterations to the fenestration.

Retail Distributing and Servicing Eastleigh
29 Sept 2026 Valid H/26/102096

9 Westfield Road, Chandler's Ford, Eastleigh, SO53 3GT

Single storey side extension and part new boundary fence.

Householder Developments Eastleigh
28 Sept 2026 Valid H/26/102200

1 Osborne Gardens, Fair Oak, Eastleigh, SO50 7NN

Retention of single storey rear extension to form covered barbeque area (Retrospective application)

Householder Developments Eastleigh
28 Sept 2026 Valid LDC/26/102191

17 Ratcliffe Road, Hedge End, Southampton, SO30 4HB

Lawful Development Certificate for the Proposed Loft Conversion, Including Hip to Gable Enlargement, Rear Dormer and 3No. Roof Lights to the front roo...

Certificate of Lawfulness (CLOPUD) Eastleigh
28 Sept 2026 Valid H/26/101945

Birch Spinney, Hungerford, Bursledon, Southampton, SO31 8DE

Use of part of an existing outbuilding as a self-contained residential annexe ancillary to the main dwelling, together with the construction of a cove...

Change of Use Eastleigh
28 Sept 2026 Valid H/26/102104

44 Chestnut Avenue, Eastleigh, SO50 5AL

Demolition of existing single-storey rear extension and erection of a two-storey rear extension with a single-storey side/rear extension, rooflights a...

Householder Developments Eastleigh
25 Sept 2026 Valid H/26/102172

22 Redcroft Lane, Bursledon, Southampton, SO31 8GS

Proposed partial garage conversion and changes to the fenestration.

Householder Developments Eastleigh
25 Sept 2026 Valid H/26/102071

45 Walker Gardens, Hedge End, Southampton, SO30 2RH

Two storey side extension and single storey rear extension following demolition of the conservatory and garage. New porch

Householder Developments Eastleigh
23 Sept 2026 Approved 23 Oct PN/26/102171

14 St Johns Road, Eastleigh, SO50 4GU

Prior Notification: Erection of single storey rear extension following removal of existing conservatory. Depth 5 metres, Maximum height 3.5 metres, ea...

Notification for Prior Approval for Larger Household Extension Eastleigh
23 Sept 2026 Valid H/26/102066

The Tree House, Richmond Close, Chandler's Ford, Eastleigh, SO53 5RA

Proposed replacement solid roof conservatory on existing base.

Householder Developments Eastleigh
23 Sept 2026 Valid H/26/102056

26 Tadburn Close, Chandler's Ford, Eastleigh, SO53 2NF

Retention of side-enclosed lean-to timber canopy structure.

Householder Developments Eastleigh
22 Sept 2026 Valid H/26/102156

1 Heath House Gardens, Hedge End, Southampton, SO30 0LF

1.5-storey rear extension, raising of the ridge height and loft conversion to form habitable rooms within the roof space, including front and side dor...

Householder Developments Eastleigh
22 Sept 2026 Valid H/26/102154

6 Waverley Avenue, Netley Abbey, Southampton, SO31 5AQ

Single storey side and rear extension.

Householder Developments Eastleigh
22 Sept 2026 Approved 23 Oct PN/26/102157

220 Bournemouth Road, Chandler's Ford, Eastleigh, SO53 3AF

Prior Notification for the erection of a single storey flat roof rear extension. Depth 4.8 metres, maximum height 3.26 metres, eaves height 2.9 metres...

Notification for Prior Approval for Larger Household Extension Eastleigh
21 Sept 2026 Valid H/26/102148

91 Brownhill Road, Chandler's Ford, Eastleigh, SO53 2FH

Erection of a single storey ground floor side and rear extension with parapet walls, raised parapet wall to an existing side and rear extension, raise...

Householder Developments Eastleigh
21 Sept 2026 Valid H/26/102046

6 Shamblehurst Lane South, Hedge End, Southampton, SO30 2FN

Sunken skate bowl in rear garden (retrospective).

Householder Developments Eastleigh
21 Sept 2026 Approved 16 Oct F/26/102143

Imperial House, Grange Drive, Hedge End, Southampton, SO30 2AF

Installation of new entrance door and repainting of cladding to front (east) elevation.

All other Developments Eastleigh
17 Sept 2026 Valid H/26/102106

11 Brownhill Road, Chandler's Ford, Eastleigh, SO53 2EB

Alterations & Extension with Loft conversion & dormers, stepped access to rear and installation of entrance gates (revised scheme to H/26/101491)

Householder Developments Eastleigh
16 Sept 2026 Valid H/26/101832

Winston, Church Hill, West End, Southampton, SO30 3AT

Two storey side extension, erection of carport to front drive and garden store to the rear.

Householder Developments Eastleigh
15 Sept 2026 Valid H/26/101697

8 Moorman Road, Netley Abbey, Southampton, SO31 5JU

Extension of a balcony within the boundary.

Dwellings Eastleigh
14 Sept 2026 Valid H/26/102092

17 Pantheon Road, Chandler's Ford, Eastleigh, SO53 2PD

Single storey rear extension and front porch

Householder Developments Eastleigh
14 Sept 2026 Valid F/26/102018

Hollybank, 41 Winchester Street, Botley, Southampton, SO30 2EB

Retention of a free-standing pergola to rear garden (retrospective).

All other Developments Eastleigh
14 Sept 2026 Valid H/26/102064

21 Welland Gardens, West End, Southampton, SO18 3PU

First floor extension over existing garage and rear dining room to create 2 new bedrooms

Householder Developments Eastleigh
14 Sept 2026 Approved 22 Oct L/26/102099

South House, School Lane, Hamble-le-Rice, Southampton, SO31 4JD

Alterations to planning permissions ref. L/25/100611 and H/25/100617 (Internal reconfiguration and elevational alterations, including additional/amend...

Listed Building Consent (Alt/Amd) Eastleigh
11 Sept 2026 Approved 22 Oct H/26/101932

42 Common Road, Chandler's Ford, Eastleigh, SO53 1HP

Single storey rear extension.

Householder Developments Eastleigh
11 Sept 2026 Approved 16 Oct H/26/101784

12 Alexandra Road, Chandler's Ford, Eastleigh, SO53 2BN

Two storey side extension and single storey rear extension.

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

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