House extensions in Manchester

Manchester received 351 householder applications in the last 12 months - about 7 a week. Rear extensions and dormers are the most common. Of the 174 decided so far, 159 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 235 applications
7 Sept 2026 Under Consultation PLA-2026-000947

Crown Courts Minshull Street Manchester M1 3FS

Replacement of existing external platform lift at main entrance with new platform lift.

Full planning permission Manchester
7 Sept 2026 Under Consultation PLA-2026-001214

223 Great Western Street Manchester M14 4LG

Installation of rear dormer.

Full planning permission Manchester
4 Sept 2026 Under Consultation PLA-2026-001253

183-185 Mauldeth Road Manchester M19 1BA

Retrospective application for the erection of a part single/part two-storey rear extension to form increased retail storage on the ground floor and a ...

Full planning permission Manchester
4 Sept 2026 Under Consultation PLA-2026-001425

1 Cotton Lane Manchester M20 4GL

Erection of a detached outbuilding following demolition of existing garage.

Householder planning permission Manchester
4 Sept 2026 Under Consultation PLA-2026-001295

468 Victoria Avenue Manchester M9 0PL

Conversion of an existing basement into 1no. self contained apartment (1 bedroom).

Full planning permission Manchester
4 Sept 2026 Under Consultation PLA-2026-001092

5 Demesne Road Manchester M16 8HG

Erection of a detached outbuilding in the rear garden to form storage facility.

Full planning permission Manchester
3 Sept 2026 Under Consultation NOT-2026-001415

46 Garth Road Manchester M22 9TN

Prior notification of proposed larger home extension projecting 4m to the rear with a maximum height of 2.9m and a height at eaves of 2.65m.

Prior approval Part 1 Class A.1(ea) Manchester
3 Sept 2026 Under Consultation NOT-2026-001311

6 Lownorth Road Manchester M22 0JZ

Prior notification of proposed larger home extension projecting 5.5m to the rear with a maximum height of 2.5m and a height at eaves of 2.5m.

Prior approval Part 1 Class A.1(ea) Manchester
2 Sept 2026 Under Consultation PLA-2026-001337

6 Totnes Road Manchester M21 8XF

Elevational alterations and installation of raised rear decked area.

Householder planning permission Manchester
1 Sept 2026 Under Consultation PLA-2026-001492

78 Kingsway Manchester M19 2DA

Increase in height of the existing front boundary wall to 1.0m including coping, raising of existing low brick piers to approximately 1.65m, installat...

Householder planning permission Manchester
1 Sept 2026 Under Consultation PLA-2026-001491

25 Kingsway Manchester M19 2BZ

Erection of single-storey side & rear extension to form additional living accommodation.

Householder planning permission Manchester
1 Sept 2026 Under Consideration PLA-2026-001309

13 Kingshill Road Manchester M21 9EZ

Elevation alterations including the installation of new rear ground floor window and rear door together with 2 rooflights to be installed on the rear ...

Lawful development Manchester
1 Sept 2026 Under Consideration PLA-2026-001302

16 Bryan Road Manchester M21 0RH

Erection of a single-storey rear extension.

Lawful development Manchester
1 Sept 2026 Under Consultation 144470/FO/2025

20 Mayfield Road Manchester M16 8FT

Erection of a single-storey rear extension to form additional accommodation, and elevational alterations to side extension.

Full planning permission Manchester
31 Aug 2026 Under Consultation PLA-2026-001488

16A Darley Avenue Manchester M20 2XF

Erection of two-storey side and rear extension and a front single-storey extension, including a first-floor front balcony, a front dormer, and part re...

Householder planning permission Manchester
28 Aug 2026 Under Consultation PLA-2026-001485

163 Abbey Hey Lane Manchester M18 8TJ

Erection of two-storey side and single-storey rear extension to form additional living accommodation; existing outbuilding to be demolished.

Householder planning permission Manchester
28 Aug 2026 Under Consultation PLA-2026-001483

14 The Circuit Manchester M20 3RA

Erection of two-storey side extension and a rear dormer

Householder planning permission Manchester
28 Aug 2026 Under Consultation PLA-2026-001479

105 - 111 Egerton Road Manchester M14 6RD

Refurbishment and extension of the existing block of apartments to deliver a net increase in dwellings from 12 apartments to 14 apartments, together w...

Full planning permission Manchester
27 Aug 2026 Under Consultation PLA-2026-001475

4 Neswick Walk Manchester M23 0HY

Erection of single storey rear and front extensions, including entrance porch, two storey side extension, rear dormer and all external walls and dorme...

Householder planning permission Manchester
27 Aug 2026 Under Consultation PLA-2026-001467

9 Farrant Road Manchester M12 4PD

Erection of two-storey side and part single-storey rear extension involving elevational alterations.

Householder planning permission Manchester
27 Aug 2026 Under Consultation PLA-2026-001469

2 Harcombe Road Manchester M20 4AT

Erection of single-storey side and rear extension.

Householder planning permission Manchester
27 Aug 2026 Under Consultation PLA-2026-000966

7 South Meade Manchester M21 8EB

Erection of single storey rear extension

Householder planning permission Manchester
26 Aug 2026 Under Consultation PLA-2026-001457

2 Lisburn Avenue Manchester M21 0TQ

Erection of two-storey side and rear extension and single-storey rear extension.

Householder planning permission Manchester
26 Aug 2026 Under Consultation PLA-2026-000783

23A Rainshaw Lane Manchester M18 7TE

Erection of a single-storey side extension.

Householder planning permission Manchester
25 Aug 2026 Under Consultation PLA-2026-001442

HMP Manchester Southall Street Manchester M3 1JL

Installation of windows baskets across Wings A, B, C, D and E of the Lower Prison at HMP Manchester

Full planning permission Manchester
25 Aug 2026 Under Consultation PLA-2026-001437

1 Beech Avenue Manchester M22 4JE

Erection of rear extension with covered patio area following demolition and relocation of existing garage.

Householder planning permission Manchester
25 Aug 2026 Under Consultation PLA-2026-001444

156 Wendover Road Manchester M23 9JX

Erection of a single storey side and rear extension to provide additional living accommodation

Householder planning permission Manchester
25 Aug 2026 Under Consultation PLA-2026-001039

117 College Road Manchester M16 0AB

Erection of single-storey rear incidental outbuilding

Householder planning permission Manchester
25 Aug 2026 Under Consultation PLA-2026-000486

131 Withington Road Manchester M16 8EE

Erection of mesh fencing to two areas of garage 'forecourt'.

Full planning permission Manchester
24 Aug 2026 Under Consultation PLA-2026-001435

1 Milford Drive Manchester M19 2SA

Erection of a single-storey rear extension.

Householder planning permission Manchester
24 Aug 2026 Under Consultation 145088/FH/2026

28 Ashstead Road Manchester M33 3PX

Erection of a single-storey front extension.

Householder planning permission Manchester
24 Aug 2026 Under Consideration NOT-2026-001248

27 Brooklands Road Manchester M8 4JH

Prior notification of proposed larger home extension projecting 5m to the rear with a maximum height of 3m and a height at eaves of 3m.

Prior approval Part 1 Class A.1(ea) Manchester
21 Aug 2026 Under Consultation PLA-2026-001411

506 Parrs Wood Road Manchester M20 5QA

Erection of single-storey extensions to the side and rear to form additional living accommodation, following demolition of existing structures.

Householder planning permission Manchester
21 Aug 2026 Under Consideration PLA-2026-000997

21 Granville Road Manchester M14 6AD

Erection of a single-storey side conservatory.

Lawful development Manchester
21 Aug 2026 Under Consultation PLA-2026-001093

52 Kingsfield Drive Manchester M20 6HX

Erection of a detached annexe ancillary to the dwellinghouse.

Householder planning permission Manchester
21 Aug 2026 Under Consultation PLA-2026-000487

Land in between Castlefield Viaduct and Aviva Studios Manchester M3 4JQ

City Council Development for the installation of external staircase.

Full planning permission Manchester
20 Aug 2026 Under Consultation PLA-2026-001400

38 Grangethorpe Drive Manchester M19 2LG

Erection of front porch with associated canopy with decorative 3 brick pillars.

Householder planning permission Manchester
20 Aug 2026 Under Consultation PLA-2026-001406

5 Fairwood Road Manchester M23 9JR

Erection of part single/part two storey extensions to the front and rear to form additional living accommodation, together with alterations to the fro...

Householder planning permission Manchester
20 Aug 2026 Under Consultation PLA-2026-001399

6 William Street Manchester M20 6RQ

Erection of a rear dormer roof extension; installation of two roof lights to the front roof slope; installation of 2nd floor window in the gable eleva...

Householder planning permission Manchester
20 Aug 2026 Under Consultation PLA-2026-001322

15 Chorlton Villas 105 Hardy Lane Manchester M21 8DN

Install canopy at the rear of the property.

Householder planning permission Manchester
20 Aug 2026 Under Consultation PLA-2026-000231

Manchester Business School Booth Street West Manchester M15 6PB

Change of use of public realm to create private external event space, with associated boundary treatment and elevational alterations.

Full planning permission Manchester
20 Aug 2026 Under Consultation PLA-2026-001141

4 Lecester Road Manchester M8 0RA

Erection of single-storey rear extension (comprising enlargement to rear extension approved under Planning Permission 144015/FH/2025).

Householder planning permission Manchester
19 Aug 2026 Under Consultation PLA-2026-001395

61 Reddish Lane Manchester M18 7JH

Change of use of ground floor from restaurant (Class E) to residential flat (Class C3a) and creation of further residential flat at second floor (Clas...

Full planning permission Manchester
19 Aug 2026 Under Consultation PLA-2026-001385

24 Ackworth Drive Manchester M23 1LD

Erection of single-storey front extension with associated canopy and installation of rear dormer

Householder planning permission Manchester
19 Aug 2026 Under Consultation PLA-2026-001231

90 Broadway Manchester M40 3WQ

Erection of single-storey rear extension.

Full planning permission Manchester
19 Aug 2026 Under Consultation PLA-2026-001272

Rooftop Car Park at Victoria Exchange (Former Martin House) Hunts Bank Manchester M3 1LD

Creation of padel tennis facility with ancillary bar use (Use Class F2(c)), and associated external alterations comprising of rooftop covered court an...

Full planning permission Manchester
18 Aug 2026 Under Consultation PLA-2026-001173

59 Meltham Avenue Manchester M20 1FE

Two-storey and single-storey side extension.

Householder planning permission Manchester
18 Aug 2026 Under Consultation PLA-2026-001091

25 Tarrington Close Manchester M12 4TB

Erection of two-storey side and rear extension, erection of front porch, rear roof dormer, alterations to roof height to existing dwelling, installati...

Householder planning permission Manchester
18 Aug 2026 Under Consultation PLA-2026-001041

3 Mayfair Park Manchester M20 2JW

Installation of rear dormer and associated elevational alterations to provide additional living accommodation

Householder planning permission Manchester
17 Aug 2026 Under Consultation PLA-2026-001325

Watkin Centre Claverton Road Manchester M23 9TT

Erection of 1no. outbuilding for use as gym and siting of 1no. storage container for use as storage, ancillary to existing building

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

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