House extensions in Slough

Slough received 574 householder applications in the last 12 months - about 11 a week. Rear extensions and dormers are the most common. Of the 318 decided so far, 239 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

199
|
71
|
30
Get alerts for Slough

Filter applications

Date receivedLast 90 days
Date receivedLast 90 days
Select one year, or two for a range.
Number of homesAny
StatusAny
Application routeAny
Application type1 selected
KeywordsNone
Match

Matches words or phrases in the application address and description.

Showing 50 of 199 applications
Yesterday Registered P/21149/000

71, Moreland Avenue, Colnbrook, Slough, SL3 0LL

Lawful Development Certificate for a proposed single storey side and rear extension to existing dwelling, hip to gable loft conversion to create habit...

Certificate Proposed (Use/Development) Slough
Yesterday Registered application Y/12108/002

11, Woodstock Avenue, Slough, SL3 7LJ

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6.00m, with a maximum height of 3.00m...

Permitted Development with Consultation Slough
Yesterday Registered application P/00831/015

Ats Euromaster Ltd, 1A, Furnival Avenue, Slough, SL2 1DH

Construction of a proposed erection of a single-storey glazed front extension to provide an enclosed, weather-protected fruit and vegetable display ar...

Full Planning Slough
2 days ago Registered application P/15941/005

1, Fieldhurst, Slough, SL3 8PQ

Construction of a first floor rear extension

Full Planning Slough
2 days ago Registered application Y/21148/000

15, The Frithe, Slough, SL2 5SY

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6m, with a maximum height of 3m, and ...

Permitted Development with Consultation Slough
2 days ago Registered application P/17628/002

77, Glanmor Road, Slough, SL2 5LH

Construction of a single storey detached outbilding to be used as a playroom/office.

Full Planning Slough
2 days ago Registered application Y/17628/001

77, Glanmor Road, Slough, SL2 5LH

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.50m, with a maximum height of 3.30m...

Permitted Development with Consultation Slough
2 days ago Registered application P/12751/002

18, Mundesley Spur, Slough, SL1 3JB

Lawful Development Certificate for a proposed loft conversion to create habitable accommodation, with rear dormer extensions and rooflights to the fro...

Certificate Proposed (Use/Development) Slough
8 Sept 2026 Registered P/03666/007

56, Oatlands Drive, Slough, SL1 3EL

Lawful Development Certificate for a proposed single storey outbuiding to the rear garden.

Certificate Proposed (Use/Development) Slough
8 Sept 2026 Registered application P/21146/000

63, Starling Crescent, Slough, SL3 7GY

Lawful development certificate for proposed Loft Conversion with flat roof dormer to the rear and 3no rooflights to the front.

Certificate Proposed (Use/Development) Slough
8 Sept 2026 Registered application P/09822/002

3, Hinksey Close, Slough, SL3 8EB

Construction of a single storey detached outbuilding to be used as office/living space.

Full Planning Slough
8 Sept 2026 Registered application P/20878/001

108, Salt Hill Way, Slough, SL1 3TX

Lawful Development Certificate for a proposed single storey outbuilding to the rear garden.

Certificate Proposed (Use/Development) Slough
8 Sept 2026 Registered application P/01001/010

The Business Village, Wexham Road, Slough, SL2 5HF

Construction of a proposed single storey, flat roof, structure to be used as a security office/ cabin for the estates manager of the Business Village.

Full Planning Slough
7 Sept 2026 Registered application Y/21144/000

87, Torridge Road, Slough, SL3 8UT

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 5m, with a maximum height of 3.3m, an...

Permitted Development with Consultation Slough
7 Sept 2026 Registered P/14770/002

12, Amanda Court, Slough, SL3 7TE

Lawful development certificate for proposed use of loft conversion with rear dormer and 1no roof light to the front elevation.

Certificate Proposed (Use/Development) Slough
7 Sept 2026 Registered application P/21140/000

324, Parlaunt Road, Slough, SL3 8AX

Construction of a proposed demolition of existing detached garage and erection of an annexe ancillary to the main dwellinghouse.

Full Planning Slough
7 Sept 2026 Registered application P/21092/001

40, Ember Road, Slough, SL3 8ED

Construction of a proposed part single storey, part two storey side and rear extension to existing dwelling, with 1no. rooflight and following demolit...

Full Planning Slough
7 Sept 2026 Registered application P/21125/000

18, Hawthorne Crescent, Slough, SL1 3NQ

Construction of a single storey side and rear extension for disabled use.

Full Planning Slough
7 Sept 2026 Registered application S/21101/000

108, Norway Drive, Slough, SL2 5QW

Construction of a proposed single storey side and rear extension to existing dwelling, plus internal alterations.

Full Planning Slough
4 Sept 2026 Registered application P/21053/001

39, Chadwick Road, Slough, SL3 7FT

Construction of a proposed erection of a single storey rear extension with mono pitched roof and 2no. rooflights.

Full Planning Slough
3 Sept 2026 Registered P/08598/002

203, Northern Road, Slough, SL2 1LU

Lawful development certificate of proposed Loft conversion with rear dormer and 2no front roof lights and single storey detached outbuidling to be use...

Certificate Proposed (Use/Development) Slough
3 Sept 2026 Registered application P/12101/005

201, Northern Road, Slough, SL2 1LU

Lawful development certificate for a proposed hip to gable loft conversion with rear dormer, 2no front roof lights and insertion of 1no window to loft...

Certificate Proposed (Use/Development) Slough
3 Sept 2026 Registered application P/21141/000

53, Botham Drive, Slough, SL1 2LZ

Construction of a single storey side extension for disabled use.

Full Planning Slough
3 Sept 2026 Pending P/16349/002

94, High Street, Langley, Slough, SL3 8JS

Retrospective application of insulated render to external walls

Full Planning Slough
1 Sept 2026 Registered application P/15599/015

Pechiney House, The Grove, Slough, SL1 1QF

Removal of all combustible insulation and replacement with new non-combustible insulation, installation of new cavity barriers and fire barriers aroun...

Full Planning Slough
1 Sept 2026 Registered application P/07651/004

21, Langley Broom, Slough, SL3 8NB

Retrospective planning application for outbuilding at the front of the main house (Amendments to application P/07651/003)

Full Planning Slough
1 Sept 2026 Registered application P/19731/002

68, Bryant Avenue, Slough, SL2 1LG

Construction of a single storey detached outbuilding to be used as gym, playroom and office.

Full Planning Slough
1 Sept 2026 Registered application Y/19731/001

68, Bryant Avenue, Slough, SL2 1LG

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6.0m, with a maximum height of 3.30m,...

Permitted Development with Consultation Slough
1 Sept 2026 Registered application P/04703/001

573, Bath Road, Slough, SL1 6AB

Retrospective application for a single storey front extension to form porch.

Full Planning Slough
1 Sept 2026 Registered application P/03224/002

24, The Glen, Slough, SL3 7HP

Construction of a proposed single storey side and rear extension to existing dwelling following demolition of the existing garage and conservatory and...

Full Planning Slough
27 Aug 2026 Registered application Y/17991/003

27, Newton Close, Slough, SL3 8DD

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6m, with a maximum height of 3.6m, an...

Permitted Development with Consultation Slough
27 Aug 2026 Registered application S/21139/000

22, Mead Avenue, Slough, SL3 8HT

Construction of a proposed two storey side and rear extension to existing dwelling, plus associated internal alterations.

Full Planning Slough
27 Aug 2026 Pending P/20889/001

321, Uxbridge Road, Slough, SL2 5RG

Lawful development certificate for a proposed loft conversion with rear dormer a

Certificate Proposed (Use/Development) Slough
27 Aug 2026 Registered application Y/20889/000

321, Uxbridge Road, Slough, SL2 5RG

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6.00m, with a maximum height of 3.14m...

Permitted Development with Consultation Slough
27 Aug 2026 Registered application P/00149/026

West Central Apartments, 1A Stoke Rd, Slough, SL2 5PF

Lawful Development Certificate for a new non-combustible Render System with necessary cavity barriers/ fire stops at compartmentation boundaries and ...

Certificate Proposed (Use/Development) Slough
26 Aug 2026 Registered application Y/20517/002

85, Paxton Avenue, Slough, Slough, SL1 2SX

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6m, with a maximum height of 3m, and ...

Permitted Development with Consultation Slough
26 Aug 2026 Pending P/09375/004

305, Farnham Road, Slough, SL2 1HD

Construction of a proposed part first floor rear extension to existing dwelling

Full Planning Slough
25 Aug 2026 Registered application Y/14954/002

35, Stoke Poges Lane, Slough, SL1 3NX

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.5m, with a maximum height of 3m, an...

Permitted Development with Consultation Slough
25 Aug 2026 Registered application P/21026/001

135, The Frithe, Slough, SL2 5RR

Construction of a proposed single storey rear extension to existing dwelling with 1no. rooflight.

Full Planning Slough
21 Aug 2026 Registered P/04903/002

25, Newton Close, Slough, SL3 8DD

Lawful Development Certificate for a proposed loft conversion to create habitable accommodation, with rear dormer extension and 2no. rooflights to the...

Certificate Proposed (Use/Development) Slough
21 Aug 2026 Registered application P/18007/002

18, Northcroft, Slough, SL2 1HS

Construction of a single storey rear outbuilding to be used ancillary to main dwelling house

Full Planning Slough
21 Aug 2026 Registered application P/15790/005

21, The Drive, Slough, SL3 7DB

planning permission to create an extra bedroom within each of the properties granted under planning application No. P/15790/002 (Conversion and extens...

Full Planning Slough
20 Aug 2026 Registered application P/21136/000

53, Mildenhall Road, Slough, SL1 3JH

Construction of a single storey rear outbuilding for use of a gym

Full Planning Slough
19 Aug 2026 Registered application Y/21135/000

111, Harrow Road, Slough, SL3 8SJ

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.50m, with a maximum height of 3.00m...

Permitted Development with Consultation Slough
19 Aug 2026 Registered application Y/21099/002

16, Wood Lane, Slough, SL1 9EA

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6m, with a maximum height of 3m, and ...

Permitted Development with Consultation Slough
19 Aug 2026 Registered application P/03611/002

75, Seacourt Road, Slough, SL3 8EP

Construction of a proposed part single storey front, side and rear extension and part two storey, side and rear extension, following demolition of exi...

Full Planning Slough
19 Aug 2026 Registered application Y/21134/000

7, Trumper Way, Slough, SL1 5EY

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6m, with a maximum height of 3m, and ...

Permitted Development with Consultation Slough
19 Aug 2026 Registered application P/20819/003

48, Park Lane, Slough, SL3 7PF

Construction of a side dormer window

Full Planning Slough
18 Aug 2026 Registered application P/21133/000

124, Oatlands Drive, Slough, SL1 3HT

Construction of a single storey rear extension with 1no roof lantern and loft conversion with rear dormer

Full Planning Slough
17 Aug 2026 Registered application Y/15563/002

38, Sutton Avenue, Slough, SL3 7AW

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 8.00m, with a maximum height of 3.00m...

Permitted Development with Consultation Slough
Recency
Last 2 weeks
2-4 weeks
1-2 months
Older

Get free email alerts for new extensions applications in Slough

Set up alerts

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

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