House extensions in Middlesbrough

Middlesbrough received 162 householder applications in the last 12 months - about 3 a week. Garage works and rear extensions are the most common. Of the 94 decided so far, 80 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 62 applications
7 Sept 2026 Pending Consideration 26/0375/FUL

6, Maltby Road, Middlesbrough, TS8 9BU

Single storey extension to side (Demolition of existing shed)

Full Planning Middlesbrough
3 Sept 2026 Pending 26/0394/FUL

17 Levick Crescent, Middlesbrough, TS5 4RL

Two storey side extension including some window/door repositioning

Full Planning Middlesbrough
3 Sept 2026 Pending Consideration 26/0390/PNH

3, Cleveland Drive, Middlesbrough, TS7 8AE

Single storey extension to rear (Length 6m, Height 2.925m, Eaves 2.725m)

Prior Notification Householder Middlesbrough
2 Sept 2026 Pending Consideration 26/0380/FUL

278-280, Linthorpe Road, Middlesbrough, TS1 3QS

Single storey extension to side

Full Planning Middlesbrough
27 Aug 2026 Pending Consideration 26/0376/FUL

19, Strait Lane, Middlesbrough, TS8 9BB

Erection of veranda and solar panels to rear

Full Planning Middlesbrough
27 Aug 2026 Pending Consideration 26/0340/FUL

5, Astbury, Middlesbrough, TS8 9XT

Conversion of double garage to form habitable room and single garage. Works including external alterations to include new window, new single garage do...

Full Planning Middlesbrough
27 Aug 2026 Pending Consideration 26/0299/FUL

Alley to the rear of 42 Linden Grove, TS5 5NE

Installation of 2no. alley gates

Full Planning Middlesbrough
26 Aug 2026 Pending Consideration 26/0387/FUL

The Bridge Veterinary Hospital, Victoria Street, Middlesbrough, TS1 5QZ

External yard to be enclosed to become part of the main building and new dog walking area and bin store

Full Planning Middlesbrough
25 Aug 2026 Pending Consideration 26/0379/FUL

Blue Bell Hotel, Acklam Road, Middlesbrough, TS5 7HL

Installation of 2no. gates to rear yard

Full Planning Middlesbrough
25 Aug 2026 Pending Consideration 26/0374/PNH

9, Urlay Grove, Middlesbrough, TS5 8LB

Single storey extension to rear (Length 4m, Height 3.45m, Eaves 2.5m)

Prior Notification Householder Middlesbrough
19 Aug 2026 Pending Consideration 26/0359/FUL

41, Eastbourne Road, Middlesbrough, TS5 6QN

Retrospective erection of single storey extension to rear (for use as storage associated with the existing hot food takeaway)

Full Planning Middlesbrough
18 Aug 2026 Pending Consideration 26/0339/PNH

90, Westminster Road, Middlesbrough, TS5 6NP

Single storey extension to rear (Length 6m, Height 3m, eaves 2.8m)

Prior Notification Householder Middlesbrough
17 Aug 2026 Pending Consideration 26/0367/FUL

93, Chalford Oaks, Middlesbrough, TS5 8QQ

Single storey extension to rear and erection of porch to front

Full Planning Middlesbrough
14 Aug 2026 Pending Consideration 26/0360/FUL

Thistle Hill, Coulby Manor Way, Middlesbrough, TS8 0RP

Single storey extension to rear, replacement of existing roof with raised level and roof pitch, including dormers to front and roof lights to front an...

Full Planning Middlesbrough
13 Aug 2026 Pending Consideration 26/0361/FUL

31, Westwood Avenue, Middlesbrough, TS5 5PX

Single storey extension to rear

Full Planning Middlesbrough
12 Aug 2026 Pending Consideration 26/0347/FUL

4, Stainton House, Marwood Wynd, Middlesbrough, TS8 9AD

Reconfiguration of rear garden landscaping to form three tiered levels

Full Planning Middlesbrough
11 Aug 2026 Pending Consideration 26/0321/FUL

2- 4, Lorne Street, Middlesbrough, TS1 5QY

Retrospective erection of infill extension to rear

Full Planning Middlesbrough
11 Aug 2026 Pending Consideration 26/0309/FUL

Grange Farm, Church Lane, Middlesbrough, TS7 0PD

Single storey extension to side (demolition of existing single storey extension and garage)

Full Planning Middlesbrough
11 Aug 2026 Pending Consideration 26/0342/FUL

25, Heythrop Drive, Middlesbrough, TS5 8QA

Two storey extension to side comprising of car port, single storey extension to rear and widening of access to the front boundary treatment

Full Planning Middlesbrough
10 Aug 2026 Pending Consideration 26/0320/FUL

78, 1, INWOOD LODGE, The Grove, MIDDLESBROUGH, TS7 8AP

Single storey extension with concealed flat roof to rear, including installation of roof light and associated alterations with glazed doors

Full Planning Middlesbrough
7 Aug 2026 Pending Consideration 26/0350/FUL

76, Highfield Road, Middlesbrough, TS4 2QP

Retrospective alterations to existing garage for the creation of an annexe

Full Planning Middlesbrough
5 Aug 2026 Pending Consideration 26/0336/FUL

29, Kader Avenue, Middlesbrough, TS5 8NG

Single storey extension to side and rear

Full Planning Middlesbrough
5 Aug 2026 Pending Consideration 26/0317/FUL

2, Whenby Nook, Middlesbrough, TS7 0BD

Single storey extension to rear with parapet roof

Full Planning Middlesbrough
5 Aug 2026 Pending Consideration 26/0286/FUL

89, Earlsdon Avenue, Middlesbrough, TS5 8SU

Retrospective Single storey extension to rear (demolition of existing conservatory)

Full Planning Middlesbrough
4 Aug 2026 Pending Consideration 26/0327/FUL

St Marys Cathedral, Dalby Way, Middlesbrough, TS8 0TW

Erection of 2no. Single storey extensions to Parish hall, including erection of staircases to north and south east elevations

Full Planning Middlesbrough
3 Aug 2026 Pending Consideration 26/0341/FUL

24, Eastbourne Road, Middlesbrough, TS5 6QW

Proposed replacement tiles like for like (slate)

Full Planning Middlesbrough
3 Aug 2026 Pending Consideration 26/0334/FUL

9, Tewkesbury Avenue, Middlesbrough, TS7 8NB

Rear extension, front dormer & garage door replaced with window

Full Planning Middlesbrough
30 Jul 2026 Pending Consideration 26/0335/FUL

7, Tirril Way, Middlesbrough, TS7 8PN

Single storey extension to side and rear (demolition of existing garage)

Full Planning Middlesbrough
29 Jul 2026 Pending Consideration 26/0319/FUL

47 Ruskin Avenue, Middlesbrough, TS5 8PG

Retrospective single storey extension to garage

Full Planning Middlesbrough
29 Jul 2026 Pending Consideration 26/0279/FUL

65, The Avenue, Middlesbrough, TS5 6QU

Retrospective installation of block paving to front (removal of existing tarmac)

Full Planning Middlesbrough
27 Jul 2026 Pending Consideration 26/0331/LBC

6, Old Stokesley Road, Middlesbrough, TS7 0NN

Installation of 4no. velux windows to roof of rear ground floor single storey room

Listed Building Consent Middlesbrough
23 Jul 2026 Pending Consideration 26/0316/FUL

4, Westbeck Gardens, Middlesbrough, TS5 6RY

Retrospective single storey extension to rear

Full Planning Middlesbrough
22 Jul 2026 Pending Consideration 26/0312/FUL

3, Muirfield, Middlesbrough, TS7 0JN

Single storey extention to rear, first floor extension to side and single storey

Full Planning Middlesbrough
21 Jul 2026 Pending Consideration 26/0323/FUL

Middlesbrough Leisure Park, Middlesbrough, TS1 2DY

External alterations comprising the replacement and addition of cladding, and installation of external lighting, roof mounted solar panels and externa...

Full Planning Middlesbrough
21 Jul 2026 Approved 26/0315/FUL

5 Topcroft Close, Middlesbrough, TS3 0BG

Single storey extension to rear

Full Planning Middlesbrough
20 Jul 2026 Pending Consideration 26/0314/FUL

9, Glenn Crescent, Middlesbrough, TS7 8ED

Retrospective erection of porch and installation render to front

Full Planning Middlesbrough
17 Jul 2026 Approved 26/0305/FUL

42, Coris Close, Middlesbrough, TS7 8SR

Installation of 2no. UPVC windows to front and side elevations

Full Planning Middlesbrough
13 Jul 2026 Pending Consideration 26/0301/FUL

Ryehill Farm House, Brass Castle Lane, Middlesbrough, TS8 9ED

Single storey extension to west elevation and two storey extension to east elevation

Full Planning Middlesbrough
13 Jul 2026 Approved 26/0303/FUL

11, Willow Bank, Middlesbrough, TS8 0SW

Conversion of garage to habitable room and single storey rear extension

Full Planning Middlesbrough
8 Jul 2026 Withdrawn 26/0300/FUL

The Bridge Veterinary Hospital, Victoria Street, Middlesbrough, TS1 5QZ

External yard to be enclosed to become part of the main building and new dog walking area and bin store. Erection 2no. extensions to side and rear, re...

Full Planning Middlesbrough
8 Jul 2026 Refused 26/0267/CLD

1, Hurworth Road, Middlesbrough, TS4 3DW

Retrospective Certificate of Lawful Development for roof alterations and enlargement undertaken as part of a loft conversion to the existing dwellingh...

Certificate of Lawful Development Middlesbrough
8 Jul 2026 Pending Consideration 26/0271/FUL

33, The Avenue, Middlesbrough, TS5 6PE

Single storey extension to rear including alterations to existing front boundary to allow vehicular access

Full Planning Middlesbrough
7 Jul 2026 Approved 26/0281/FUL

68, Cookgate, Middlesbrough, TS7 0PZ

Two storey extension to rear

Full Planning Middlesbrough
2 Jul 2026 Pending Consideration 26/0285/FUL

4, Buxton Avenue, Middlesbrough, TS7 8LP

Single storey extension to front and rear with single storey side extension to form annex, alterations to side windows, installation of additional exi...

Full Planning Middlesbrough
1 Jul 2026 Withdrawn 26/0283/LBC

Westside House, Stokesley Road, Middlesbrough, TS7 8BG

Erection of ancillary garden building to rear

Listed Building Consent Middlesbrough
1 Jul 2026 Pending Consideration 26/0282/FUL

Westside House, Stokesley Road, Middlesbrough, TS7 8BG

Erection of ancillary garden building to rear

Full Planning Middlesbrough
1 Jul 2026 Pending Consideration 26/0275/FUL

453, Acklam Road, Middlesbrough, TS5 7HB

Single storey extension to rear and conversion of garage to habitable space

Full Planning Middlesbrough
25 Jun 2026 Approved 26/0263/FUL

6, Broadstone, Middlesbrough, TS8 9XY

Single storey extension to side and rear

Full Planning Middlesbrough
25 Jun 2026 Approved 26/0233/FUL

27, Hallgarth Close, Middlesbrough, TS5 8SX

Installation of a single-storey projecting rectangular bay window to the front elevation

Full Planning Middlesbrough
24 Jun 2026 Refused 26/0250/FUL

2, Reeth Road, Middlesbrough, TS5 5HJ

Retrospective erection of fence to front

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

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