House extensions in Mole Valley

Mole Valley received 716 householder applications in the last 12 months - about 14 a week. Rear extensions and garage works are the most common. Of the 539 decided so far, 438 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 158 applications
21 Oct 2026 Live MO/2026/01549

12 Solecote, Great Bookham, KT23 3EQ

Erection of a first-floor side and rear extension and alterations to fenestration including the installation of 1 No. window to ground floor side elev...

Detailed Householder Mole Valley
21 Oct 2026 Live MO/2026/01545

Rydal Oaks, Cobham Road, Bookham, KT11 3QL

Certificate of Lawfulness for a proposed development in respect of the erection of 2 No. single storey side extensions a two a storey rear extension.

Proposed Certificate of Lawful Use Mole Valley
21 Oct 2026 Live MO/2026/01553

38 Poplar Avenue, Leatherhead, KT22 8SH

Installation of 100mm external wall insulation to all elevations and installation of 4 No. solar panels to the South West elevation.

Detailed Householder Mole Valley
21 Oct 2026 Live MO/2026/01555

Ridgeway Lodge, Ridgeway Road, Dorking, RH4 3AY

Erection of detached car port.

Detailed Householder Mole Valley
20 Oct 2026 Live MO/2026/01550

14 Buckingham Road, South Holmwood, RH5 4LB

Erection of a single storey rear extension.

Detailed Householder Mole Valley
20 Oct 2026 Live MO/2026/01566

153 Barnett Wood Lane, Ashtead, KT21 2LR

Change of use and conversion of building from a nursing home (Use Class C2) to residential (Use class C3) including demolition of rear conservatory, i...

Detailed Mole Valley
20 Oct 2026 Live MO/2026/01539

Corner Cottage, Partridge Lane, Newdigate, RH5 5EE

Prior Notification for the demolition of existing garage and erection of 2 No. single storey side extensions and a single storey rear extension all 8 ...

PN - Householder 2013 Mole Valley
19 Oct 2026 Live MO/2026/01544

Sunny Bank, Nower Road, Dorking, RH4 3BY

Certificate of Lawfulness for a proposed development in respect of the erection of a single storey detached outbuilding within the rear garden for use...

Proposed Certificate of Lawful Use Mole Valley
16 Oct 2026 Live MO/2026/01563

Tyrwhitt House, Oaklawn Road, Leatherhead, KT22 0BX

Replacement roof to part of building.

Detailed Mole Valley
16 Oct 2026 Live MO/2026/01552

12 Poplar Avenue, Leatherhead, KT22 8SH

Installation of 100mm external wall insulation to all elevations and installation of 6 No. solar panels to the South East elevation.

Detailed Householder Mole Valley
16 Oct 2026 Live MO/2026/01554

113 Cobham Road, Fetcham, KT22 9HX

Demolition of existing conservatory and erection of single storey rear extension with external air-conditioning unit.

Detailed Householder Mole Valley
16 Oct 2026 Live MO/2026/01528

32 Church Road, Leatherhead, KT22 8BD

Replacement of 3 No. existing windows with uPVC vertical sliding sash windows to the front and rear, replacement of porch window with a fixed-pane win...

Detailed Householder Mole Valley
16 Oct 2026 Live MO/2026/01520

22 Fairfield Cottages, East Street, Great Bookham, KT23 4QY

Installation of 100mm external wall insulation to all elevations

Detailed Householder Mole Valley
16 Oct 2026 Live MO/2026/01521

12 Ten Acres, Fetcham, KT22 9XQ

Erection of a single storey rear extension.

Detailed Householder Mole Valley
15 Oct 2026 Live MO/2026/01569

Oakdene, Camilla Drive, Westhumble, RH5 6BU

Demolition of existing carport and erection of an open bay carport with games room over.

Detailed Householder Mole Valley
15 Oct 2026 Live MO/2026/01509

The Turkey Shed (Formerly Land at Sawpits), Froggetts Lane, Wallis Wood, RH5 5RJ

Change of use from former agricultural land to domestic garden / residential area to serve the dwelling approved under planning permission MO/2023/016...

Detailed Mole Valley
15 Oct 2026 Live MO/2026/01506

14 High Street, Dorking, RH4 1AX

A new entrance is proposed to deliver level access into the Banking Hub and achieve DDA compliance.

Detailed Mole Valley
15 Oct 2026 Live MO/2026/01508

3, Pixholme Grove, Pixham Dorking, RH4 1PJ

Certificate of Lawfulness for a proposed development in respect of the erection of 1 No. rear dormer being lawful following the construction of the ex...

Proposed Certificate of Lawful Use Mole Valley
14 Oct 2026 Live MO/2026/01551

Grim's Kitchen, Guildford Road, Abinger Hammer, RH5 6RY

Demolition of existing shed and rear porch and erection of a single storey rear extension.

Detailed Householder Mole Valley
14 Oct 2026 Live MO/2026/01499

63 Bailey Road, Westcott, RH4 3QR

Erection of 1 No. rear dormer and installation of 1 No. rooflight in the front roof slope to facilitate loft conversion.

Detailed Householder Mole Valley
13 Oct 2026 Live MO/2026/01559

2 Garlic Cottages, Hogden Lane, Ranmore Common, RH5 6SY

Alterations to outbuilding to include conversion of internal garage bay and installation of solar panels to eastern roof slope, rearrangement of solar...

Detailed Householder Mole Valley
13 Oct 2026 Live MO/2026/01561

27 Spring Grove, Fetcham, KT22 9NN

Erection of single storey side extension and front porch.

Detailed Householder Mole Valley
13 Oct 2026 Live MO/2026/01562

4 Maple Grove, Great Bookham, KT23 4NG

Erection of a single storey rear extension.

Detailed Householder Mole Valley
13 Oct 2026 Live MO/2026/01498

Fermoy, Sideways Lane, Hookwood, RH6 0AX

Certificate of Lawfulness for a proposed development in respect of demolition of existing garage and the erection of single storey side and rear exten...

Proposed Certificate of Lawful Use Mole Valley
12 Oct 2026 Live MO/2026/01560

Friars Dene, Druids Close, Ashtead, KT21 2UH

Erection of part single, part two storey side/rear extension and rear roof extension incorporating 1 No. dormer window, erection of 1 No. dormer windo...

Detailed Householder Mole Valley
9 Oct 2026 Live MO/2026/01546

Highlands, the Downs, Leatherhead, KT22 8LF

Certificate of lawfulness for a proposed development in respect of the erection of a two storey rear extension.

Proposed Certificate of Lawful Use Mole Valley
9 Oct 2026 Live MO/2026/01547

Highlands, the Downs, Leatherhead, KT22 8LF

Certificate of lawfulness for a proposed development in respect of erection of a detached outbuilding and associated access.

Proposed Certificate of Lawful Use Mole Valley
9 Oct 2026 Live MO/2026/01494

Littlehaven, 37 Parsonage Lane, Westcott, RH4 3NL

Erection of a first floor side and rear extensions single storey rear extensions; extension to existing terrace with steps to front.

Detailed Householder Mole Valley
9 Oct 2026 Live MO/2026/01475

Lang Brae, Deepdene Park Road, Dorking, RH5 4AW

Certificate of Lawfulness for a proposed development in respect of the insertion of 2 No. roof lights and 1 No. window to gable end to allow conversio...

Proposed Certificate of Lawful Use Mole Valley
8 Oct 2026 Live MO/2026/01557

33 West Farm Avenue, Ashtead, KT21 2LD

Demolition of the detached garage, single storey rear element, front dormer and chimney and erection of a single storey rear extension with rear dorme...

Detailed Householder Mole Valley
6 Oct 2026 Live MO/2026/01556

Tamarind, Headley Heath Approach, Box Hill, KT20 7LL

Installation of a sliding front gate.

Detailed Householder Mole Valley
6 Oct 2026 Live MO/2026/01558

30 Lodge Road, Fetcham, KT22 9QY

Demolition of existing single storey rear element and erection of a single storey rear extension.

Detailed Householder Mole Valley
6 Oct 2026 Live MO/2026/01526

Tamarind, Headley Heath Approach, Box Hill, KT20 7LL

Certificate of Lawfulness for a proposed development in respect of the conversion of the existing garage to habitable accommodation including the inst...

Proposed Certificate of Lawful Use Mole Valley
5 Oct 2026 Live MO/2026/01530

12 Summerfield, Ashtead, KT21 2LF

Demolition of existing conservatory and erection of single-storey rear extension including the addition of a door and window in the side elevation.

Detailed Householder Mole Valley
5 Oct 2026 Live MO/2026/01531

18 The Beeches, Fetcham, KT22 9DT

Conversion of existing garage and erection of a single storey front extension to provide ancillary residential accommodation.

Detailed Householder Mole Valley
5 Oct 2026 Live MO/2026/01532

Salamat, Deepdene Avenue Road, Dorking, RH4 1ST

Conversion of garage to habitable accommodation.

Detailed Householder Mole Valley
5 Oct 2026 Live MO/2026/01525

11 Gladstone Road, Ashtead, KT21 2NS

Certificate of Lawfulness for a proposed development in respect of the change of the roof from hip-to-gable, erection of 1 No. rear dormer and inserti...

Proposed Certificate of Lawful Use Mole Valley
5 Oct 2026 Live MO/2026/01515

Greenways, Walliswood Green Road, Wallis Wood, RH5 5RD

Certificate of Lawfulness for a proposed development in respect of the erection of a single storey rear extension (sunroom).

Proposed Certificate of Lawful Use Mole Valley
5 Oct 2026 Live MO/2026/01516

30 Lodge Road, Fetcham, KT22 9QY

Certificate of Lawfulness for a proposed development in respect of the erection of 1 No. rear dormer.

Proposed Certificate of Lawful Use Mole Valley
5 Oct 2026 Live MO/2026/01446

1 Brookside, Beare Green, RH5 4QH

Demolition of existing conservatory and garage and erection of a part single, part two storey side and rear extension.

Detailed Householder Mole Valley
2 Oct 2026 Live MO/2026/01514

131 Craddocks Avenue, Ashtead, KT21 1NR

Certificate of Lawfulness for a proposed development in respect of the erection of a single storey rear extension.

Proposed Certificate of Lawful Use Mole Valley
2 Oct 2026 Live MO/2026/01482

The Chalet, 18 the Street, Charlwood, RH6 0BY

Erection of single storey front and rear extensions and front porch; raise roof ridge height and erect 3 No. dormer windows to both front and rear roo...

Detailed Householder Mole Valley
2 Oct 2026 Live MO/2026/01440

6 Forest Green Farm, Mill Lane, Forest Green, RH5 5SJ

To replace 3 No. windows with a bi-fold door

Detailed Householder Mole Valley
1 Oct 2026 Live MO/2026/01435

Tanners Hatch Independent Hostel , Off Ranmore Common Road , Dorking , Surrey , RH5 6BE

Exterior works including replacement of exterior finish, replacement of concrete walkways around the exterior, and repairs to chimneys, windows and wi...

Listed Building Consent Mole Valley
1 Oct 2026 Live MO/2026/01466

4 The Mount, Fetcham, KT22 9EE

Demolition of existing central rear element and erection of a part single, part two storey, part first floor rear extension with 1 No. rear dormer win...

Detailed Householder Mole Valley
1 Oct 2026 Withdrawn MO/2026/01442

63 Bailey Road, Westcott, RH4 3QR

Erection of 1 No. rear dormer and installation of 1 No. rooflight in the front roof slope to facilitate loft conversion.

Detailed Householder Mole Valley
30 Sept 2026 Live MO/2026/01513

Woodmans Cottage, Young Street, Fetcham, KT22 9BP

Certificate of Lawfulness for a proposed development in respect of the erection of 2 No. of single storey rear extensions and the erection of a detach...

Proposed Certificate of Lawful Use Mole Valley
30 Sept 2026 Live MO/2026/01474

5 Fairfield Cottages, Leatherhead Road, Great Bookham, KT23 4RA

Installation of 100mm external wall insulation to all elevations.

Detailed Householder Mole Valley
30 Sept 2026 Live MO/2026/01473

6 Fairfield Cottages, Leatherhead Road, Great Bookham, KT23 4RA

Installation of 100mm external wall insulation to all elevations.

Detailed Householder Mole Valley
30 Sept 2026 Live MO/2026/01472

16 Fairfield Cottages, Leatherhead Road, Great Bookham, KT23 4RA

Installation of 100mm external wall insulation to all elevations.

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

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