Planning application
99 Heath Street London NW3 6SS
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Use as a single family dwellinghouse (further to implementation of planning permission 2007/3874/P dated 6/12/2007).
As published by the council, reference 2026/3389/P
Application record
- Reference
- 2026/3389/P
- Type
- Certificate of Lawfulness (Proposed)
- Status
- Registered
- Received
- 7 Aug 2026
- Validated
- 12 Aug 2026
- Ward
- Hampstead Town
- Postcode
- NW3 6SS
Site history
Applications at this address on the Camden register
This site has had 5 applications since 2010: 2 approved, 1 refused.
-
2010/6285/P Refused
99 Heath Street London NW3 6SS
Retention of roller shutter to west (The Mount) elevation of existing building (Class A2).
-
2010/3881/P Granted
99 Heath Street London NW3 6SS
Installation of aluminium louvred opening at roof level and timber louvred door to west side elevation of the existing building (Class A2).
-
2010/3554/P Granted
99 Heath Street London NW3 6SS
Retrospective application for installation of windows on rear ground floor level extension within courtyard (north elevation) and associated alterations to existing building (Class A2); along with reinstatement of timber garage doors to street elevation as previously approved under planning permission reference 2007/3874/P.
-
2010/2055/P Withdrawn
99 Heath Street London NW3 6SS
Retrospective application for installation of windows on rear ground floor level extension within courtyard (north elevation), installation of roller shutter and entrance gate on The Mount frontage (west elevation) and associated alterations to existing building (Class A2)
Timeline
Dates from the published record
-
7 Aug 2026
Received by Camden
-
12 Aug 2026
Validated
Checked as complete and ready for consideration.
-
15 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 7 October 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 42 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.
Trade members open them 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 lawful development applications in a median of 54 days. More in our guide to how long planning decisions take.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
99 Heath Street London NW3 6SS
Retention of roller shutter to west (The Mount) elevation of existing building (Class A2).
Refused Full applications -
99 Heath Street London NW3 6SS
Retrospective application for installation of windows on rear ground floor level extension within courtyard (north elevation), installation of roller shutter and entrance gate on The Mount frontage (west elevation) and associated alterations to existing building (Class A2)
Withdrawn Full applications Extension Windows or glazing -
99 Heath Street London NW3 6SS
Installation of aluminium louvred opening at roof level and timber louvred door to west side elevation of the existing building (Class A2).
Granted Full applications -
99 Heath Street London NW3 6SS
Retrospective application for installation of windows on rear ground floor level extension within courtyard (north elevation) and associated alterations to existing building (Class A2); along with reinstatement of timber garage doors to street elevation as previously approved under planning permission reference 2007/3874/P.
Granted Full applications Extension Windows or glazing -
101-103 Heath Street London NW3 6SS
Change of use from shop (Class A1) to office use (Class B1) at basement, ground and part first floor levels for a temporary period of two years.
Decided Full applications -
101-103 Heath Street LONDON NW3 6SS
Change of use of part first floor level from gallery (Class A1) to residential (Class C3); erection of a two storey rear extension at ground and first floor levels following the demolition of existing single storey rear extension and store rooms in rear yard; associated alterations including alterations to the shopfront, replacement of existing rear second floor window with sliding doors and refurbishment works.
Granted Full applications Extension Demolition +1Small domestic
Other lawful development applications
In Camden
-
2026/3669/P Awaiting decision
64 Westcroft Close London NW2 2RR
Demolition of existing conservatory and erection of a single storey rear extension.
-
2026/3405/P Granted
Flat A and Flat B 23 Ravenshaw Street London NW6 1NP
Amalgamation of Flat 23A and Flat 23B to form one dwellinghouse (Use Class C3), including, insofar as required, the change of use of Flat 23B from a small house in multiple occupation (Use Class C4) to a dwellinghouse (Use Class C3), together with removal of an internal blockwork partition wall.
-
2026/3591/P Awaiting decision
22 Ulysses Road London NW6 1EE
Erection of an outbuilding within rear garden.
-
2026/3566/P Awaiting decision
41 & 43 King Henry's Road London NW3 3QR
Subdivision and use of the buildings as two separate residential dwellings.
-
2026/3527/P Awaiting decision
303 Flat Ground Floor Rear Studio West End Lane London Camden NW6 1RD
Use of ground floor studio flat as single dwelling unit (Class C3)