39 Montagu Square London W1H 2LL Data via plota.co.uk
Proposal
Amalgamation of Flats 3 and 4 (Use Class C3) to form one single dwelling (Use Class C3) including associated internal reconfiguration and refurbishments, alterations to access arrangements and improvements to the existing terrace and private amenity spaces, new plant and other associated works. (Linked with 26/07416/LBC) Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 20 Dec 2026 and 29 Dec 2026, from Westminster's recent extensions.
Associated applications 2
- Amalgamation of Flats 3 and 4 (Use Class C3) to form one single dwelling (Use Class C3) including associated internal…
Site constraints 9
Show the other 53 with distances
- 3 m40, Montagu Square W1Grade II
- 9 m41, Montagu Square W1Grade II
- 16 m42 and 43, Montagu Square W1Grade II
- 17 m36, Montagu Square W1Grade II
- 24 m35, Montagu Square W1Grade II
- 30 m44, Montagu Square W1Grade II
- 31 m33 and 34, Montagu Square W1Grade II
- 35 m1A, BRYANSTON SQUARE W1 (See details for further address information)Grade II
- 37 m45, Montagu Square W1Grade II
- 44 m46, Montagu Square W1Grade II
- 51 m47-49, Montagu Square W1Grade II
- 56 m24-26, Montagu Square W1Grade II
- 56 m23, Montagu Square W1Grade II
- 57 m20-22, Montagu Square W1Grade II
- 64 m19, Montagu Square W1Grade II
- 68 m18, Montagu Square W1Grade II
- 69 m13, Montagu Place W1Grade II
- 72 m13-17, Montagu Square W1Grade II
- 74 mWater Pump Set in Central Garden Opposite Number 15Grade II
- 75 m50 and 51, Montagu Square W1Grade II
- 76 m30, Montagu Square W1Grade II
- 81 m4 and 5, Montagu Place W1Grade II
- 84 m6 and 8, Upper Montagu Street W1Grade II
- 88 m52-59, Montagu Square W1Grade II
- 90 m7-11, Upper Montagu Street W1Grade II
- 94 m10, Upper Montagu Street W1Grade II
- 94 mWater Pump at North End of Central GardenGrade II
- 95 m1-3, Montagu Place W1Grade II
- 96 m21-75, Gloucester Place W1Grade II
- 103 m12-16, Upper Montagu Street W1Grade II
- 104 m7-12, Montagu Square W1Grade II
- 109 m13, Upper Montagu Street W1Grade II
- 112 m25,25a and 26, Bryanston Square W1Grade II
- 113 m2, Wyndham Place W1Grade II
- 113 m15-19, Upper Montagu Street W1Grade II
- 114 m28/32, BRYANSTON SQUARE W1 (See details for further address information)Grade II
- 119 m83-97, Gloucester Place W1Grade II
- 120 m18 and 20, Upper Montagu Street W1Grade II
- 122 m3-6, Wyndham Place W1Grade II
- 123 m14-16, Wyndham Place W1Grade II
- 132 m105A, CRAWFORD STREET W1 (See details for further address information)Grade II
- 135 m1-3, Bryanston Place W1Grade II
- 136 m42-70, Gloucester Place W1Grade II
- 140 m94, CRAWFORD STREET W1 (See details for further address information)Grade II
- 142 m6, Montagu Square W1Grade II
- 143 m60, Montagu Square W1Grade II
- 144 m112 and 113, Crawford Street W1Grade II
- 145 mDuke of Wellington Public HouseGrade II
- 148 m72-76, Gloucester Place W1Grade II
- 148 m1-5, Montagu Square W1Grade II
- 149 m114 and 115, Crawford Street W1Grade II
- 149 m61-63, Montagu Square W1Grade II
- 149 m26, Dorset Street W1Grade II
Checked on 4 November 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- W1H 2LL
- Received
- 30 Oct 2026
- Validated
- 30 Oct 2026
- Ward
- Marylebone
- Case officer
- Show
- Target decision
- 25 Dec 2026
- Applicant
- Show
- Agent
- Newmark
Decision outlook
Day 7 of the 56-day target. Westminster usually decides extensions by day 55.
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
Last counted 4 Nov 2026
Consultation & key dates
- Alt. reference
- PP-15218659
- Planning Portal ref
- PP-15218659
- Env. assessment
- No
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
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39 Montagu Square London W1H 2LL
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