Planning application
12 Mansfield Place London NW3 1HS
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Erection of a single storey garden room
As published by the council, reference 2026/4066/P
Application record
- Reference
- 2026/4066/P
- Type
- Householder Application
- Status
- Registered
- Received
- 18 Sep 2026
- Validated
- 22 Sep 2026
- Ward
- Hampstead Town
- Postcode
- NW3 1HS
Site history
Applications at this address on the Camden register
This site has had 4 applications since 2011: 2 approved, 1 refused.
-
2014/7658/P Granted
12 Mansfield Place London NW3 1HS
Installation of timber trellis to front boundary wall [retrospective].
-
2011/4618/P Refused
12 MANSFIELD PLACE LONDON NW3 1HS
Erection of single storey extension to the front of a single dwelling house (Class C3).
-
2011/2172/T Granted
12 Mansfield Place London NW3 1HS
FRONT GARDEN: 1 x Eucalyptus - Remove.
Timeline
Dates from the published record
-
18 Sep 2026
Received by Camden
-
22 Sep 2026
Validated
Checked as complete and ready for consideration.
-
24 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 17 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Camden took a median of 43 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
12 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided householder applications in a median of 66 days. More in our guide to how long planning decisions take.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
12 MANSFIELD PLACE LONDON NW3 1HS
Erection of single storey extension to the front of a single dwelling house (Class C3).
Refused Full applications ExtensionSmall domestic -
-
12 Mansfield Place London NW3 1HS
Installation of timber trellis to front boundary wall [retrospective].
Granted Full applicationsSmall domestic -
11 Mansfield Place London NW3 1HS
FRONT GARDEN: 1 x Purple Leaf Plum (T1) - Fell to ground level.
Granted Trees -
11 Mansfield Place London NW3 1HS
FRONT GARDEN: 1 x Purple Plum - Reduce crown by 1-2m (25%) and shape.
Granted Trees -
11 Mansfield Place London NW3 1HS
Replacement of single-glazed, timber frame sash windows on front elevation with double-glazed like-for-like units.
Granted Householder Windows or glazing 7 docsDomestic
Other householder applications
In Camden
-
2026/4031/P Awaiting decision
10 Albert Street London NW1 7NZ
Erection of an extension to widen rear dormer window at second floor.
-
2026/3231/P Granted
9 Wadham Gardens London NW3 3DN
Replacement rear timber casement window, installation of timber-panelled side access door, replacement of existing front boundary gates and piers, installation of metal railings, provision of reclaimed Yorkstone paving to the front garden and associated works.
-
2026/4030/P Awaiting decision
6 Leverton Street London NW5 2PJ
Replace garden wall with metal railing; replace 3 rear windows, 3 rear elevation side windows, 1 rear door and 1 rear elevation side door with double-glazed crittal windows and doors; remove 2 rear windows; render rear elevation brickwork; and associated works.
-
2026/3493/P Granted
2 Wildwood Terrace London NW3 7HT
Enlargement of the existing rear French doors and single-leaf door at lower ground floor level, together with the replacement of five rear timber sash windows.
-
2026/2003/P Granted
23 Glenmore Road London NW3 4BY
Installation of external AC unit with acoustic enclosure to rear garden.