House extensions in Oldham

Oldham received 585 householder applications in the last 12 months - about 11 a week. Rear extensions and side extensions are the most common. Of the 456 decided so far, 435 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 134 applications
23 Oct 2026 Awaiting decision HOU/357013/26

36 Argyll Road Chadderton Oldham OL9 8AL

Part single storey part two storey rear extension.

Householder Oldham
23 Oct 2026 Awaiting decision HOU/357005/26

Rock Farm Huddersfield Road Delph Oldham OL3 5LU

1. Single storey rear extension 2. Raising eaves and ridge of existing rear extension 3. Raising eaves and ridge of main dwelling 4. Alterations to fr...

Householder Oldham
23 Oct 2026 Awaiting decision HOU/356982/26

47 Leicester Road Failsworth Oldham M35 0GW

Single storey rear extension.

Householder Oldham
23 Oct 2026 Awaiting decision HOU/356970/26

34 Hurstwood Close Oldham OL8 2XL

Single storey rear extension.

Householder Oldham
22 Oct 2026 Awaiting decision HOU/357015/26

37 Werneth Crescent Oldham OL8 4LT

First floor side extension

Householder Oldham
20 Oct 2026 Awaiting decision HOU/357002/26

32 Brompton Street Oldham OL4 1AB

1) Front and rear dormers 2) Part single, part two storey rear extension

Householder Oldham
20 Oct 2026 Awaiting decision FUL/356890/26

158 Block Lane Chadderton Oldham OL9 7SG

Change of use from GP Surgery to 6 no. apartments (Use Class C3), external garden room, new amenity areas, and revised parking arrangements

Full Application Oldham
20 Oct 2026 Awaiting decision HOU/356960/26

8 Mallow Close Oldham OL9 6AN

Part two storey, part single storey rear extension

Householder Oldham
16 Oct 2026 Awaiting decision PDE/356998/26

112 High Street Uppermill Oldham OL3 6BT

Single storey rear extension. Length - 3.280m. Maximum height - 3.936m. Height to Eaves - 2.470m.

Permitted Development (HH) Oldham
16 Oct 2026 Awaiting decision HOU/356929/26

129 Marlborough Drive Failsworth Oldham M35 0LX

1) Two storey side extension 2) Part two storey, part single storey rear extension 3) Rear dormer

Householder Oldham
15 Oct 2026 Awaiting decision HOU/356979/26

27 Walker Road Chadderton Oldham OL9 8BY

Two storey side extension.

Householder Oldham
13 Oct 2026 Awaiting decision PDE/356973/26

4 Mulmount Close Oldham OL8 4NA

Erection of a single storey rear extension with a maximum length of 4.50m, maximum height of 3.56m and height to eaves of 2.50m

Permitted Development (HH) Oldham
13 Oct 2026 Awaiting decision HOU/356962/26

40 Alan Avenue Failsworth Oldham M35 0PS

1) Demolition of existing single storey rear extension and associated raised patio 2) Single storey rear extension with new raised patio

Householder Oldham
13 Oct 2026 Awaiting decision HOU/356903/26

89 Queens Road Oldham OL8 2BA

First floor rear extension.

Householder Oldham
12 Oct 2026 Awaiting decision HOU/356967/26

2 Lilac Grove Chadderton Oldham OL9 0EE

1) Part single part two storey rear extension 2) Front porch with canopy.

Householder Oldham
12 Oct 2026 Awaiting decision HOU/356958/26

49 Kensington Avenue Royton Oldham OL2 5XZ

Rear Canopy and balustrade.

Householder Oldham
12 Oct 2026 Awaiting decision FUL/356809/26

138 Werneth Hall Road Oldham OL8 1QZ

Erection of a single storey extension.

Full Application Oldham
9 Oct 2026 Awaiting decision HOU/356855/26

11 Norfolk Crescent Failsworth Oldham M35 0WG

Single storey side extension.

Householder Oldham
9 Oct 2026 Awaiting decision CEA/356840/26

8 Privet Street Oldham OL4 2PJ

Removal of the existing roof to the single storey rear extension and erection of a new flat roof and addition of two new roof lanterns.

Cert of Lawful Use/Operation - Proposed Oldham
8 Oct 2026 Awaiting decision HOU/356952/26

37 Broomes Park Chadderton Oldham OL9 9GH

Two storey rear extension.

Householder Oldham
8 Oct 2026 Awaiting decision LBC/356842/26

2 Church Road Uppermill Oldham OL3 6BH

1). Repair pointing to chimney, 2). Replace rainwater goods, 3). External light fitting, 4). Clean existing timbers internally, 5). Remove stud wall t...

Listed Building Consent Oldham
8 Oct 2026 Awaiting decision HOU/356930/26

9 Alan Avenue Failsworth Oldham M35 0PR

Single storey side extension.

Householder Oldham
8 Oct 2026 Awaiting decision HOU/356926/26

8 Carrbrook Drive Royton Oldham OL2 6DD

Single storey rear extension replacing existing conservatory.

Householder Oldham
8 Oct 2026 Awaiting decision HOU/356921/26

Greave Head Greave Park Uppermill Oldham OL3 6LB

1) Single storey side extension 2) Alterations to garage roof to provide new storage in the attic space.

Householder Oldham
8 Oct 2026 Awaiting decision HOU/356908/26

331 Abbey Hills Road Oldham OL4 5LX

1) Single storey side and rear extension. 2) Hip to gable roof conversion with front and rear dormers. 3) Alterations to existing patio.

Householder Oldham
8 Oct 2026 Awaiting decision HOU/356780/26

83 Napier Street East Oldham OL8 1TR

First floor rear extension.

Householder Oldham
7 Oct 2026 Awaiting decision HOU/356939/26

17 Manor Close Chadderton Oldham OL9 0EZ

First floor rear extension.

Householder Oldham
7 Oct 2026 Awaiting decision FUL/356839/26

283 Rochdale Road Oldham OL1 2HG

The erection of new boundary fencing and access gates around the associated car park to allow the use as an outdoor play area in connection with the p...

Full Application Oldham
6 Oct 2026 Awaiting decision HOU/356933/26

184 Windsor Road Oldham OL8 1RG

Two storey side extension to form annex, including lower ground floor level and attic

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356922/26

21 Whittingham Grove Oldham OL1 2NW

Two storey side extension

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356919/26

23 Brierley Avenue Failsworth Oldham M35 0RG

1) Demolition of rear conservatory 2) Part single, part two storey rear extension

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356916/26

9 Cathedral Road Chadderton Oldham OL9 0AT

1) Two storey side extension 2) Alterations to the front elevation.

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356914/26

21 Petworth Road Chadderton Oldham OL9 9BG

Single storey rear extension.

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356905/26

20 Amberwood Chadderton Oldham OL9 9SG

1) Demolition of existing conservatory and single storey side extension 2) Erection of a single-storey rear extension and two-storey side extension.

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356894/26

425 Burnley Lane Chadderton Oldham OL9 0BP

1) Two-storey side extension 2) Single storey rear extension.

Householder Oldham
2 Oct 2026 Awaiting decision HOU/356810/26

866 Huddersfield Road Austerlands Oldham OL4 4BA

Erection of a rear dormer.

Householder Oldham
1 Oct 2026 Awaiting decision HOU/356843/26

16 Station Street Springhead Oldham OL4 4PQ

Removal of porch to front elevation, single storey side extension, minor elevation alterations and part render of building.

Householder Oldham
1 Oct 2026 Awaiting decision HOU/356915/26

31 Saint Marys Drive Greenfield Oldham OL3 7DT

1) Single storey side and rear extension 2) Front porch.

Householder Oldham
30 Sept 2026 Awaiting decision HOU/356912/26

39 Kensington Avenue Royton Oldham OL2 5YF

Single storey side extension.

Householder Oldham
29 Sept 2026 Awaiting decision HOU/356897/26

81 Church Road Uppermill Oldham OL3 6DY

Garage conversion and amendment of roof to a pitched roof.

Householder Oldham
29 Sept 2026 Awaiting decision HOU/356799/26

74 Garforth Street Chadderton Oldham OL9 6NX

1) Part two storey and part single storey side and rear extension 2) Expansion of existing front porch.

Householder Oldham
24 Sept 2026 Awaiting decision HOU/356907/26

9 Willows Drive Failsworth Oldham M35 0PZ

Erction of front and side dormers.

Householder Oldham
24 Sept 2026 Awaiting decision HOU/356881/26

Nodgate Farm Cragg Road Chadderton Oldham OL1 2RX

Two storey side and rear extension, raise existing roof ridge, installation of new cladding to front elevation, and loft conversion.

Householder Oldham
23 Sept 2026 Awaiting decision FUL/356872/26

4 Elk Mill Central Retail Park Broadway Royton Oldham OL2 5HX

Insertion of mezzanine floor and associated minor external alterations.

Full Application Oldham
23 Sept 2026 Awaiting decision HOU/356807/26

79 Saffron Drive Oldham OL4 2PS

Single storey rear extension.

Householder Oldham
23 Sept 2026 Awaiting decision HOU/356428/26

9 Honiton Close Chadderton Oldham OL9 0QZ

1) Demolition of conservatory 2) Erection of a two storey rear extension and single storey front extension

Householder Oldham
22 Sept 2026 Awaiting decision HOU/356860/26

10 Norley Close Chadderton Oldham OL1 2RA

Erection of a detached garage with storage above.

Householder Oldham
22 Sept 2026 Awaiting decision HOU/356861/26

20 Lonsdale Road Oldham OL8 4QR

Single storey side and rear extension.

Householder Oldham
21 Sept 2026 Awaiting decision HOU/356475/26

51 Oakbank Avenue Chadderton Oldham OL9 0PP

Single storey side extension.

Householder Oldham
18 Sept 2026 Awaiting decision HOU/356851/26

111 Limeside Road Oldham OL8 3NA

Erection of a hip to gable roof extension and rear dormer.

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

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