House extensions in Allerdale

Allerdale received 193 householder applications in the last 12 months - about 4 a week. Rear extensions and garage works are the most common. Of the 156 decided so far, 153 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 47 of 47 applications
21 Oct 2026 Under Consultation HOU/2026/0145

Troll Haus, Eaglesfield, CA13 0SF

Single-storey rear extension, with covered entrance to the front and the installation of solar PV , roof and replacement windows

Householder planning permission Allerdale
15 Oct 2026 Under Consultation HOU/2026/0142

58 Skinburness Road, Silloth, Wigton, CA7 4QF

Demolition of existing conservatory and replace with sun room extension

Householder planning permission Allerdale
14 Oct 2026 Under Consultation HOU/2026/0139

Sunnycroft, Croftside, Challoner Street, Cockermouth, CA13 9QX

Replace all existing wooden (with metal slider) windows (1988 approx) with new Upvc double glazed A+ windows and replace lounge inward opening double ...

Householder planning permission Allerdale
14 Oct 2026 Under Consultation HOU/2026/0141

106 High Street, Maryport, CA15 6BQ

Retrospective householder application for the permanent removal of a small chimney stack

Householder planning permission Allerdale
13 Oct 2026 Under Consultation HOU/2026/0140

The Cottage, Gamelsby CA7 0NX

Proposed canopy to front door and solar panels to roof

Householder planning permission Allerdale
13 Oct 2026 Under Consultation HOU/2026/0143

Kirbyside, Pardshaw, Cockermouth, CA13 0SP

Single-storey side extension and alterations to a detached private dwelling, to create a larger craft room and general purpose lobby.

Householder planning permission Allerdale
9 Oct 2026 Under Consultation HOU/2026/0138

Pine Garth, Dean, Workington, CA14 4TH

Demolish attached garage to side and form single storey extension to side/front

Householder planning permission Allerdale
8 Oct 2026 Under Consultation FUL/2026/0121

Throstle Nest Inn, King Street, Wigton, CA7 9EP

Replace existing front wooden windows and doors to front of building with plastic bifold windows and double doors, with the creation of new rear door ...

Full planning permission Allerdale
30 Sept 2026 Under Consultation HOU/2026/0134

Meikle Rigg, Bridekirk, CA13 0PE

Proposed single storey extension

Householder planning permission Allerdale
30 Sept 2026 Under Consultation HOU/2026/0132

29 High Close, High Harrington, Workington, CA14 5RQ

Rear extension, adding Dorma's to front elevation and driveway extension.

Householder planning permission Allerdale
29 Sept 2026 Under Consultation FUL/2026/0135

21 Portland Square, Workington, CA14 4BW

Proposed replacement of exisitng windows with new timber sliding sash

Full planning permission Allerdale
23 Sept 2026 Under Consultation HOU/2026/0131

10, Ellerbeck Lane, Workington, CA14 4HE

Erection of a single-storey rear extension with decking area

Householder planning permission Allerdale
22 Sept 2026 Approved AGR/2026/0051

Waverton House, Waverton, CA7 0AE

Prior notification for a roof over existing midden

Prior notification Allerdale
21 Sept 2026 Under Consultation FUL/2026/0126

Mayfield, Crosby CA15 6TA

Alterations to the roof of the dormer bungalow to form a 2 storey dwelling with rooms in the roof and external balcony, incorporating extended residen...

Full planning permission Allerdale
11 Sept 2026 Approved HOU/2026/0126

Barn at East Elms Farm, Moor Road, Great Broughton, Cockermouth CA13 0YT

Conversion of redundant barn into a residential annex to the existing farmhouse, including PV Solar Roof Mounted System with velux windows, new doors ...

Householder planning permission Allerdale
10 Sept 2026 Approved HOU/2026/0130

14 Alexander Close, Workington, CA14 3HQ

Two storey extension to side of house

Householder planning permission Allerdale
7 Sept 2026 Under Consultation HOU/2026/0119

Pennybridge Barn, Access Road To Oldbridge And Pennybridge From Coldgill Avenue, Great Broughton, CA13 0YP

Replacement of doors to front and rear; installation of multifuel burner and external double-walled flue; creation of fireplace; removal of an interna...

Householder planning permission Allerdale
4 Sept 2026 Under Consultation HOU/2026/0128

43 St Mungos Park, Aspatria, Wigton, CA7 3JF

Proposed extension at first floor level to create new bedroom and bathroom accommodation and larger hall at ground floor level

Householder planning permission Allerdale
3 Sept 2026 Approved AGR/2026/0047

Wood Side Farm, Broughton Moor, Maryport CA15 7RJ

Roofing over an existing concrete pad and midden.

Prior notification Allerdale
3 Sept 2026 Under Consultation FUL/2026/0094

Albion Hotel, Eden Street, Silloth CA7 4AS

Demolition of store and outbuildings and proposed extension to public house and new external staircase to provide access to manager accommodation

Full planning permission Allerdale
2 Sept 2026 Approved HOU/2026/0129

24 Hawkshead Avenue, Workington CA14 3HS

Proposed two storey rear extension and internal alterations

Householder planning permission Allerdale
2 Sept 2026 Under Consultation HOU/2026/0124

8 Ghyll Road, Westfield, Workington, CA14 5AL

Two storey side/rear extension, Single storey rear extension and creating parking area to the front of the property.

Householder planning permission Allerdale
2 Sept 2026 Approved HOU/2026/0120

95, Mitchell Avenue, Northside, CA14 1AB

Rear single storey extension

Householder planning permission Allerdale
1 Sept 2026 Under Consultation HOU/2026/0127

Laurel Cottage, Kirkbampton Village, Kirkbampton, CA5 6JB

Proposal to remove a 3.2 metre section of front wall to create a parking place using the established vehicle crossover and dropped kerb.

Householder planning permission Allerdale
28 Aug 2026 Approved AGR/2026/0045

Reathwaite Farm, Brocklebank, Wigton, CA7 8DN

Removal of existing barn to be replaced with general purpose shed, along with extension of adjoining shed.

Prior notification Allerdale
27 Aug 2026 Approved AGR/2026/0046

Crooklands Farm, Access Road To Crooklands From Blencogo To Bromfield, Bromfield, CA7 3NB

Storage shed

Prior notification Allerdale
26 Aug 2026 Approved REAR/2026/0014

81 Meadow Vale, Seaton, Workington CA14 1SD

Single storey extension to rear

Prior Approval under Pt.1cls.A.1 (ea) - Larger Home Extension Allerdale
26 Aug 2026 Approved HOU/2026/0123

14 Meadow Close, Maryport, CA15 7AS

Single Storey Rear Extension

Householder planning permission Allerdale
26 Aug 2026 Withdrawn AGR/2026/0039

Threapland Lees, Threapland, Aspatria, Wigton CA7 2JP

Proposed general purpose storage shed

Prior notification Allerdale
25 Aug 2026 Approved HOU/2026/0125

99, Sandybeck Way, Cockermouth, CA13 9FU

Single storey extension to the rear

Householder planning permission Allerdale
24 Aug 2026 Approved CLDP/2026/0010

59 Sycamore Drive, High Seaton, Workington, CA14 1NG

Certificate of lawful development for a single storey rear extension

Lawful development Allerdale
24 Aug 2026 Approved HOU/2026/0118

The Chestnuts, Deanscales, Cockermouth, CA13 0SL

Proposed rear extension to bungalow

Householder planning permission Allerdale
21 Aug 2026 Under Consultation HOU/2026/0078

9 Skiddaw View, Cockermouth, CA13 0DQ

Replace x3 front windows

Householder planning permission Allerdale
19 Aug 2026 Decided HOU/2026/0122

8, Fletcher Street, Cockermouth, CA13 0HA

Resubmission of application HOU/2026/0015 for the demolition of existing two storey rear extension and construction of a replacement two storey rear e...

Householder planning permission Allerdale
19 Aug 2026 Decided FUL/2026/0098

Highfield Sports Ground, Highfield Road, Cockermouth, CA13 9JF

Siting of storage containers to store rugby related sporting equipment, football nets, festival items, grounds maintenance equipment and tractor lawnm...

Full planning permission Allerdale
19 Aug 2026 Approved FUL/2026/0113

Oldside, Workington

Erection of secure perimeter fencing at Land at Oldside, Port of Workington.

Full planning permission Allerdale
18 Aug 2026 Approved HOU/2026/0121

Blooming Heather, Blitterlees, Silloth, Wigton, CA7 4JT

Proposed single storey side extension

Householder planning permission Allerdale
11 Aug 2026 Approved FUL/2026/0102

Wavergill Head, Brocklebank CA7 8DJ

Proposed conversion of part vacant barn to provide Air BnB and erection of associated balcony, together with a new porch to the main house.

Full planning permission Allerdale
10 Aug 2026 Approved HOU/2026/0116

11 Lawson Street, Maryport CA15 6ND

Rebuilding of rear garage wall and new single storey link room

Householder planning permission Allerdale
7 Aug 2026 Approved HOU/2026/0117

18, Deer Orchard Close, Cockermouth, CA13 9JH

Single-storey front extension to provide an extended garage and porch, alteration to rear ground floor windows.

Householder planning permission Allerdale
5 Aug 2026 Approved REAR/2026/0013

1 Cedar Crescent, Maryport, CA15 7BX

Single storey rear extension, facing brickwork walls, flat roof and UPVC windows and doors 4.3m in length

Prior Approval under Pt.1cls.A.1 (ea) - Larger Home Extension Allerdale
5 Aug 2026 Approved FUL/2026/0100

41 & 41a St Helens Street, Cockermouth, CA13 9HX

Demolition of existing single storey extension and erection of two storey extension of the same footprint

Full planning permission Allerdale
4 Aug 2026 Refused CLDP/2026/0008

4 Dean Street, Workington CA14 2XA

Internal alterations to subdivide existing property. No external alterations are proposed.

Lawful development Allerdale
4 Aug 2026 Approved HOU/2026/0115

54, High Seaton, Seaton, Workington, CA14 1LN

Garden studio and gym in rear garden.

Householder planning permission Allerdale
31 Jul 2026 Approved REAR/2026/0012

98 Sycamore Road, Maryport, CA15 7AG

Single storey rear extension to provide sun room

Prior Approval under Pt.1cls.A.1 (ea) - Larger Home Extension Allerdale
31 Jul 2026 Approved HOU/2026/0077

41 Fitz Road, Cockermouth, CA13 0AN

Two storey side extension

Householder planning permission Allerdale
29 Jul 2026 Approved HOU/2026/0112

21, Moricambe Crescent, Anthorn, CA7 5AS

Single storey rear extension to provide disabled WC and shower room facility

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

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