16 Mortimer Street Westminster W1T 3JL
Variation of Condition 1 of planning permission dated 03 August 2023 (RN: 23/02362/FULL) for, 'Partial demolition; infill of rear lightwells; front extension at fifth floor level and introduction of a terrace; partial replacement of front elevation; refurbishment of existing building; installation of plant equipment; replacement windows; cycle parking; and associated external alterations; in connection with the use of the building as Offices (Class E);; NAMELY, the reduction of roof level massing to the rear, installation of guttering above fifth floor and introduction of roof pitch increasing the height of the fifth-floor façade by 250 mm; removal of external basement to ground floor stair to the rear, revised canopy design to the front, revised signage design to left of canopy, addition of three external wall lights at ground level, new planters at ground and terrace levels, revised Crittall style window arrangement, spandrel panel at front facade to incorporate vertical detailing to match mullions, change in location of bike racks, reduction of window sizes to east and west lightwell infills and introduction of grilles at eastern infill, and proposed reduction in rooflight to east and west infill extension. (Application under Section 73 of the Act).
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Progress
Application details
- Reference
- 23/07589/FULL
- Local authority
- Westminster
- Postcode
- W1T 3JL
- Ward
- WEW_22
- Application type
- All Other
- Property type
- Commercial
Key dates
- Submitted
- 1 Nov 2023
- Validated
- 1 Nov 2023
- Comments close
- 6 Dec 2023
- Target decision
- 27 Dec 2023
- Decided
- 21 Dec 2023
Estimated project value
£21k–£54k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: MyJobQuote / Checkatrade 2026 extension rates.
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.
- FLAT 10C, CLEVELAND HOUSE, 8 - 10 CLEVELAND STREET, LONDON, W1T 4HYFlat or maisonette · Leasehold · £475,0003 months ago27 Jul 2026
- FLAT 8, FITZROVIA APARTMENTS, 41 - 42 WARREN STREET, LONDON, W1T 6AGFlat or maisonette · Leasehold · £1,500,0003 months ago13 Jul 2026
- FLAT 29, FURNIVAL MANSIONS WELLS STREET, LONDON, W1T 3PLFlat or maisonette · Leasehold · £499,9503 months ago13 Jul 2026
- APARTMENT G01, 3 PEARSON SQUARE, LONDON, W1T 3BGFlat or maisonette · Leasehold · £1,900,0003 months ago3 Jul 2026
- 45 NEWMAN STREET, LONDON, W1T 1QEOther · Leasehold · Not a standard market sale · £750,0003 months ago2 Jul 2026
- GROUND FLOOR AND BASEMENT PREMISES, 46 NEWMAN STREET, LONDON, W1T 1QFOther · Leasehold · Not a standard market sale · £750,0003 months ago2 Jul 2026
- FLAT 60, 80 NEWMAN STREET, LONDON, W1T 3ESFlat or maisonette · Leasehold · £395,0004 months ago25 Jun 2026
- FLAT 28, 25 GRESSE STREET, LONDON, W1T 1QWFlat or maisonette · Leasehold · £505,0004 months ago18 Jun 2026
Homes here go for about £502,475 — the median of the last 6 market sales in W1T (the wider postcode district), £395,000 to £1,900,000.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
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