Flat 1 49 Montagu Square London W1H 2LW Data via plota.co.uk
Proposal
Replacement of existing single glazed sash timber windows and frames with new double glazed sash timber windows and frames - 5 windows on the front elevation. (Linked with 25/05706/LBC) Data via plota.co.uk
Application progress
Approved on 22 Apr 2026 · Delegated Decision · Last checked 18 Oct 2026
Documents 24
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 10
Application forms 1
Consultation & comments 1
Other documents 8
Associated applications 2
- Replacement of existing single glazed sash timber windows and frames with new double glazed sash timber windows and frames - 5…
Site constraints 9
Show the other 41 with distances
- 3 m50 and 51, Montagu Square W1Grade II
- 17 m52-59, Montagu Square W1Grade II
- 21 m46, Montagu Square W1Grade II
- 28 m45, Montagu Square W1Grade II
- 30 m1A, BRYANSTON SQUARE W1 (See details for further address information)Grade II
- 35 m44, Montagu Square W1Grade II
- 39 mWater Pump Set in Central Garden Opposite Number 15Grade II
- 41 m42 and 43, Montagu Square W1Grade II
- 56 m41, Montagu Square W1Grade II
- 58 m13-17, Montagu Square W1Grade II
- 60 m7-12, Montagu Square W1Grade II
- 62 m40, Montagu Square W1Grade II
- 64 m18, Montagu Square W1Grade II
- 67 m19, Montagu Square W1Grade II
- 69 m37-39, Montagu Square W1Grade II
- 71 m60, Montagu Square W1Grade II
- 71 m20-22, Montagu Square W1Grade II
- 78 m61-63, Montagu Square W1Grade II
- 83 m6, Montagu Square W1Grade II
- 86 m23, Montagu Square W1Grade II
- 88 m1-5, Montagu Square W1Grade II
- 89 m36, Montagu Square W1Grade II
- 92 m24-26, Montagu Square W1Grade II
- 95 m35, Montagu Square W1Grade II
- 98 m21-75, Gloucester Place W1Grade II
- 102 m33 and 34, Montagu Square W1Grade II
- 115 m12, Montagu Street W1Grade II
- 116 m117-125, George Street W1Grade II
- 121 m44-48, Bryanston Square W1Grade II
- 121 m13 and 14, Montagu Street W1Grade II
- 122 m21b, Gloucester Place W1Grade II
- 126 mWilliam Pitt Byrne Memorial FountainGrade II
- 127 m58-68, Great Cumberland Place W1Grade II
- 130 m28/32, BRYANSTON SQUARE W1 (See details for further address information)Grade II
- 136 m13, Montagu Place W1Grade II
- 137 m42-70, Gloucester Place W1Grade II
- 140 m30, Montagu Square W1Grade II
- 141 mWater Pump at North End of Central GardenGrade II
- 142 m30, Gloucester Place W1Grade II
- 143 m4 and 5, Montagu Place W1Grade II
- 147 m57-63, Great Cumberland Place W1Grade II
Checked on 2 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.
Sales history 2
Last sold for £2,720,000 in December 2024. Flat or maisonette, leasehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in June 2017, the latest held for this property. The building may have changed since. View the certificate
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 2LW
- Received
- 14 Aug 2025
- Validated
- 15 Sept 2025
- Ward
- Marylebone
- Case officer
- Show
- Target decision
- 24 Apr 2026
- Decision
- Application Permitted
- Decision date
- 22 Apr 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- PS Facades Ltd
- Leaseholder
- Show
How this decision compares
Decided in 219 days from validation, 143 days slower than Westminster's median of 76 for full applications. Approved, as 86% of full applications here are.
Plota live figures for full applications decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
16 neighbours consulted · Last counted 18 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14254519
- Planning Portal ref
- PP-14254519
- Comments by
- 20 Oct 2025
- Site or press notice
- 29 Sept 2025
- Env. assessment
- No
Historical activity at this location
26 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.
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.
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Flat 1 49 Montagu Square London W1H 2LW
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