House extensions in Durham

Durham received 182 householder applications in the last 12 months - about 4 a week. Rear extensions and garage works are the most common. Of the 22 decided so far, 18 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

85 last 90 days
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31 last 30 days
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16 last 14 days

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Showing 50 of 85 applications
DM/26/01762/FPA 8 Jul 2026 Pending Consideration

St Helen Auckland Community Primary School Manor Road St Helen Auckland Bishop Auckland DL14 9EN

Replacement of 4nr external timber doors with aluminium equivalents.

Durham 8 Jul 2026
DM/26/01729/FPA 6 Jul 2026 Pending Consideration

Land North Of 10 Methold Houses Beamish DH9 0RD

Erection of shed to rear

Durham 6 Jul 2026
DM/26/01726/FPA 6 Jul 2026 Pending Consideration

20 Bowes Avenue Seaham SR7 8JY

Single-storey side extension

Durham 6 Jul 2026
DM/26/01736/HPN 6 Jul 2026 Pending Consideration

11 Fern Crescent Seaham SR7 7UJ

Single Storey Rear Extension

Durham 6 Jul 2026
DM/26/01741/FPA 6 Jul 2026 Pending Consideration

8 Church Walk Thornley Durham DH6 3EN

Single-storey rear extension, detached garden room within the rear garden, and external alterations including off-white render to the main dwelling an...

Durham 6 Jul 2026
DM/26/01720/LB 3 Jul 2026 Pending Consideration

78 Gilesgate Durham DH1 1HY

Replacement of defective timber windows and timber lintels repair of external stucco ashlar render to front elevation

Listed Building Consent Durham 3 Jul 2026
DM/26/01719/FPA 3 Jul 2026 Pending Consideration

78 Gilesgate Durham DH1 1HY

Replacement of defective timber windows and timber lintels repair of external stucco ashlar render to front elevation

Full Planning Application Durham 3 Jul 2026
DM/26/01716/FPA 3 Jul 2026 Pending Consideration

4 Yacley Close Newton Aycliffe DL5 5DB

Single storey extension to rear

Durham 3 Jul 2026
DM/26/01702/FPA 2 Jul 2026 Pending Consideration

9 Clarence Gardens Bishop Auckland DL14 7RB

Demolition of the existing rear extension and its replacement with a larger single-storey rear extension, and conversion of the loft space to include ...

Full Planning Application Durham 2 Jul 2026
DM/26/01689/FPA 1 Jul 2026 Pending Consideration

6 Fir Avenue Sherburn Road Estate Durham DH1 2EU

Change of use from dwellinghouse (Use Class C3) to a flexible use permission as an HMO (Use Class C4) and a dwellinghouse (Use Class C3) under the pro...

Full Planning Application Durham 1 Jul 2026
DM/26/01676/HPN 30 Jun 2026 Pending Consideration

44 Beech Close Brasside Durham DH1 5YB

Proposed Conservatory To The Rear

Householder Prior Notification Durham 30 Jun 2026
DM/26/01674/FPA 30 Jun 2026 Pending Consideration

Nationwide 6 Front Street Chester-le-Street DH3 3DF

Installation of combined defibrillator and bleed kit cabinet to external wall

Full Planning Application Durham 30 Jun 2026
DM/26/01671/LB 30 Jun 2026 Pending Consideration

The Vicarage 8 Manor Road St Helen Auckland Bishop Auckland DL14 9EN

Lower boundary wall height (in association with demolition of garage)

Listed Building Consent Durham 30 Jun 2026
DM/26/01668/FPA 28 Jun 2026 Pending Consideration

4 Wiltshire Close Belmont Durham DH1 2BG

Garage conversion including installation of hipped roof

Full Planning Application Durham 28 Jun 2026
DM/26/01648/FPA 26 Jun 2026 Pending Consideration

33 St Cuthberts Way Bishop Auckland DL14 6DY

Retrospective planning application for a single storey rear extension

Full Planning Application Durham 26 Jun 2026
DM/26/01640/FPA 25 Jun 2026 Pending Consideration

59 Warkworth Drive Chester-le-street Chester-le-Street DH2 3TH

Single storey front and rear extensions

Full Planning Application Durham 25 Jun 2026
DM/26/01635/LB 24 Jun 2026 Pending Decision

Park Place Hamsterley Hall Hamsterley Mill Rowlands Gill NE39 1NJ

Listed Buildings Consent for Park Place: Construction of a three-car car port, creation of a horse menage (personal use only), conversion of existing ...

Listed Building Consent Durham 24 Jun 2026
DM/26/01634/FPA 24 Jun 2026 Pending Consideration

14 Farnham Close Auckland Park Bishop Auckland DL14 8YR

Removal of the existing boundary hedgerow and its replacement with a timber fence

Full Planning Application Durham 24 Jun 2026
DM/26/01638/LB 24 Jun 2026 Pending Consideration

17 Hollinside Terrace Hollinside Durham DH7 0RQ

Replacement of 2 sliding sash windows, 1 casement window and front door.

Listed Building Consent Durham 24 Jun 2026
DM/26/01625/FPA 24 Jun 2026 Pending Consideration

18 Bamburgh Road Newton Hall Durham DH1 5NW

Ground floor front bay window, conversion of original integral side garage into habitable accommodation and single-storey rear extension

Full Planning Application Durham 24 Jun 2026
DM/26/01579/LB 17 Jun 2026 Pending Consideration

Moor View Hunstanworth Consett DH8 9UF

Replacement of 4no. upper floor single glazed softwood windows with hardwood framed thin profiled double glazed units

Listed Building Consent Durham 17 Jun 2026
DM/26/01575/FPA 17 Jun 2026 Pending Consideration

Coach House Esh Durham DH7 9QP

Detached carport to front of dwelling

Full Planning Application Durham 17 Jun 2026
DM/26/01563/FPA 16 Jun 2026 Pending Consideration

Langley House Residential Home Sunderland Road Horden Peterlee SR8 4NL

Extension to residents ground floor lounge within existing courtyard

Full Planning Application Durham 16 Jun 2026
DM/26/01539/FPA 15 Jun 2026 Pending Consideration

10 Yarmouth Close Seaham SR7 7RP

Single-storey rear extension

Full Planning Application Durham 15 Jun 2026
DM/26/01540/FPA 15 Jun 2026 Pending Consideration

20 Eardulph Avenue Chester-le-street Chester-le-Street DH3 3PR

Single storey rear extension

Full Planning Application Durham 15 Jun 2026
DM/26/01537/FPA 15 Jun 2026 Pending Consideration

15 Lexington Court Brandon Durham DH7 8UD

Two storey side extension

Full Planning Application Durham 15 Jun 2026
DM/26/01528/FPA 12 Jun 2026 Pending Consideration

135 Edge Court Sherburn Road Estate Durham DH1 2XG

Conversion of small community hall and existing adjoining bungalow into 1 no. 3-bedroom fully adapted bungalow with associated private parking, front ...

Full Planning Application Durham 12 Jun 2026
DM/26/01494/FPA 11 Jun 2026 Pending Consideration

24 Well Bank Billy Row Crook DL15 9SP

Single storey side extension, rendering and cladding to existing building and installation of solar panels to front roof slope

Full Planning Application Durham 11 Jun 2026
DM/26/01502/FPA 11 Jun 2026 Pending Consideration

178 Devonshire Road Belmont Durham DH1 2BL

Single-storey rear extension with 2no. rooflights and conversion of attached garage

Full Planning Application Durham 11 Jun 2026
DM/26/01483/FPA 10 Jun 2026 Pending Consideration

5 Loweswater Grove West Auckland Bishop Auckland DL14 9NA

Existing canopy roof extended over bay window

Full Planning Application Durham 10 Jun 2026
DM/26/01479/FPA 10 Jun 2026 Pending Consideration

58 Toft Hill Bishop Auckland DL14 0JA

Single extension to the side of property and single extension off the side of garage

Full Planning Application Durham 10 Jun 2026
DM/26/01492/FPA 10 Jun 2026 Pending Consideration

11 Aykley Green Durham DH1 4LN

Single-storey and two-storey side and rear extensions, increase driveway width, and construction of garden building to the rear (gym and games room)

Full Planning Application Durham 10 Jun 2026
DM/26/01446/FPA 8 Jun 2026 Pending Consideration

Koteikan 24 Windsor Terrace Leeholme Bishop Auckland DL14 8HZ

Rentention of uPVC windows and door

Full Planning Application Durham 8 Jun 2026
DM/26/01441/FPA 5 Jun 2026 Pending Consideration

23 Heath Road Middlestone Moor Spennymoor DL16 7DT

Retention of Detached Gazebo in Rear Garden Curtilage of Host Dwelling

Full Planning Application Durham 5 Jun 2026
DM/26/01432/FPA 4 Jun 2026 Pending Consideration

133 Harvey Avenue Framwellgate Moor Durham DH1 5ZB

Single storey side extension and loft conversion including replacement roof and dormer windows to east and west elevations, replacement of existing fe...

Full Planning Application Durham 4 Jun 2026
DM/26/01415/CPO 3 Jun 2026 Pending Consideration

Church Lodge Church Bank Shotley Bridge Consett DH8 0NW

Lawful Development Certificate for the erection of a 1.0m high stone wall to front of property.

Certificate of Lawfulness Proposed Opera Durham 3 Jun 2026
DM/26/01416/FPA 3 Jun 2026 Pending Decision

5 Highgrove Court Little Thorpe Peterlee SR8 3UU

Erection of detached sunroom in garden (retrospective)

Full Planning Application Durham 3 Jun 2026
DM/26/01430/FPA 3 Jun 2026 Pending Consideration

2 Caldwell Drive Crook DL15 9WB

Replacement of driveway and lawn, addition of steps and handrail (Retrospective)

Full Planning Application Durham 3 Jun 2026
DM/26/01399/CPO 2 Jun 2026 Pending Consideration

28 Moor Edge Crossgate Moor Durham DH1 4HT

Certificate of Proposed Development for a hip to gable conversion to form loft conversion with rear dormer

Certificate of Lawfulness Proposed Opera Durham 2 Jun 2026
DM/26/01382/FPA 1 Jun 2026 Pending Decision

13 Sandbach Great Lumley Chester-le-Street DH3 4LL

Single-storey rear extension

Full Planning Application Durham 1 Jun 2026
DM/26/01376/FPA 1 Jun 2026 Pending Consideration

Station House Station Houses Cockfield Bishop Auckland DL13 5HH

Erection of detached outbuilding to be used as private recording studio

Full Planning Application Durham 1 Jun 2026
DM/26/01351/FPA 28 May 2026 Decided

16 Hillgarth Castleside Consett DH8 9QD

Front/side single storey extension and garage conversion

Full Planning Application Durham 28 May 2026
DM/26/01330/FPA 27 May 2026 Pending Decision

Moatside Mews Saddler Street Durham DH1 3PQ

Replacement windows

Full Planning Application Durham 27 May 2026
DM/26/01314/FPA 26 May 2026 Decided

Avondale The Villas Harelaw Stanley DH9 8DQ

Single storey side / rear extension

Full Planning Application Durham 26 May 2026
DM/26/01324/FPA 26 May 2026 Pending Consideration

15 Pennine Way Chilton Ferryhill DL17 0QE

Small rear single storey extension, concrete foundations, small drainage alterations, brick and mortar, flat roof construction with UPVC doors and win...

Full Planning Application Durham 26 May 2026
DM/26/01297/LB 21 May 2026 Pending Consideration

The Old House High Street North Shincliffe Durham DH1 2NJ

Proposed single-storey rear extension

Listed Building Consent Durham 21 May 2026
DM/26/01296/FPA 21 May 2026 Pending Consideration

The Old House High Street North Shincliffe Durham DH1 2NJ

Proposed single-storey rear extension

Full Planning Application Durham 21 May 2026
DM/26/01269/FPA 19 May 2026 Decided

1 Wallas Road Newton Aycliffe DL5 5LN

Remove existing out buildings and form new single storey accessible bedroom and bathroom extension

Full Planning Application Durham 19 May 2026
DM/26/01249/FPA 18 May 2026 Decided

13 Bay Avenue Horden Peterlee SR8 4HG

Single storey extension to western elevation

Full Planning Application Durham 18 May 2026
DM/26/01270/FPA 18 May 2026 Decided

Flat 4 Thorngate Mill Thorngate Barnard Castle DL12 8QD

Retrospective erection of greenhouse to rear patio

Full Planning Application Durham 18 May 2026
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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 — taller, larger, 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 with objections) can take longer.
Can I get email alerts for new extensions applications in Durham?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Durham. You can also narrow the alert to a postcode, street, or drawn area.

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