Planning application
25/08227/P3JPA
1 St Mary's Terrace London W2 1SU
Proposal
Notification for Prior Approval for the change of use to a single dwellinghouse under the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) Schedule 2, Part 3, Class MA.
As published by the council, reference 25/08227/P3JPA
Timeline
Dates from the published record
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11 Nov 2025
Received by Westminster
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20 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About prior approval applications
How this application type works
Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.
Nearby applications
Within 500 metres
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25/07690/FULL Awaiting decision
6 Hogan Mews London W2 1UP
Erection of ground floor extension, erection of roof extension to the rear and new garage door in association with use of garage as habitable accomodation.
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25/09249/FULL Granted
26 St Marys Mansions St Mary's Terrace London W2 1SQ
Replacement of all timber double-glazed windows at first floor level and installation of new air brick and flue to rear elevation.
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25/06446/FULL Granted
St Marys Mansions St Mary's Terrace London W2 1SQ
Retention of four roof space access hatch/doors to facilitate building maintenance
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26/04334/ADV Awaiting decision
The Prince Regent Grand Union Canal London W2 1WN
Display of internally illuminated fascia sign measuring 0.58m x 2.44m; vinyl to external back side of cabin; and three clear vinyl to the inside of three glass panes.
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11/08021/COFUL Granted
1 John Aird Court London W2 1UY
Variation of Condition 5 of planning permission dated 17 March 2011 (RN:11/00420) for the demolition of the redundant boiler house and redevelopment to provide nine flats; namely, amend the condition to state that the demolition of the boiler house can begin prior to approval of the site investigation report and the remediation strategy.
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11/07047/COGADF Granted
1 John Aird Court London W2 1UY
Sample of obscure glass for windows to the service/stair core, kitchen windows to Units 2, 3, 4, 5, 6, 7 and 8 and details of Construction Management Plan pursuant to Condition 18, 19 and 23 of planning permission dated 17 March 2011 (RN:11/00420).
Other prior approval applications
In Westminster
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26/04929/P3JPA Awaiting decision
8 - 10 Hallam Street London W1W 6JE
Application for Prior Approval under Class MA, Part 3 of Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the conversion of the existing office accommodation (Class E) to provide 6 residential dwellings.
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26/03606/DPAD Awaiting decision
6 Crompton Street London W2 1ND
Demolition of the main building down to the ground floor and retain and cap off the existing basement; demolition of external garages and the boundary walls retained; and new boundary wall or fencing.
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26/03580/P3JPA Awaiting decision
Leconfield House Curzon Street London W1J 5JA
Prior approval for change of use from commercial (Class E) to residential (Class 3) at Leconfield House, Curzon Street under Schedule 2, Part 3, Class MA (Commercial, business and service to dwelling houses).
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26/01145/P3JPA Granted
Stone House 9 Weymouth Street London W1W 6DB
Change of use of ground floor of 9 Weymouth Street, a Commercial, Business, Services (Use Class E) to Dwellinghouses (Use Class C3) Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) under Schedule 2, Part 3, Class MA (Commercial, business and service to dwelling houses).
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26/02098/P3JPA Awaiting decision
44 Ebury Mews East London SW1W 9QA
Notification for Prior Approval under Class MA, Part 3 of Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the conversion of the existing office accommodation (Class E) to provide one residential dwelling.