Sanctuary Buildings, 20 Great Smith Street Westminster SW1P 3BT
Demolition of roof plant room and roof light structure; construction of office (B1) floor at level 9 with plant above; remodelling of mansard at level 8; installation of window openings to the Abbey Orchard Street elevation; alterations to Great Smith Street elevation at ground floor level; change of use to cafe (Class A3) at part ground floor level; and associated internal alterations. Provision of a terrace at sixth floor level fronting Great Smith Street and at ninth floor level fronting Great Smith Street and Abbey Orchard Street [Site includes Sanctuary Buildings, Orchard House and Park House].
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Progress
Application details
- Reference
- 17/09875/FULL
- Local authority
- Westminster
- Postcode
- SW1P 3BT
- Ward
- ST. JAMES'S
- Application type
- All Other
- Property type
- Commercial
Key dates
- Decided
- 13 Jun 2018
Estimated project value
£37k–£100k
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: Checkatrade 2026 loft conversion cost guide.
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.
- APARTMENT 1, 10 ROCHESTER ROW, LONDON, SW1P 1NSFlat or maisonette · Leasehold · £581,3413 months ago5 Jun 2026
- FLAT 33, ROYAL WESTMINSTER LODGE, 3 ELVERTON STREET, LONDON, SW1P 2QWFlat or maisonette · Leasehold · £820,0003 months ago3 Jun 2026
- FLAT 62, ROGERS HOUSE PAGE STREET, LONDON, SW1P 4EYFlat or maisonette · Leasehold · Not a standard market sale · £470,0003 months ago22 May 2026
- FLAT 14, 68 VINCENT SQUARE, LONDON, SW1P 2NUFlat or maisonette · Leasehold · £675,0003 months ago18 May 2026
- FLAT 13, TOUNSON COURT MONTAIGNE CLOSE, LONDON, SW1P 4AQFlat or maisonette · Leasehold · £875,0004 months ago1 May 2026
- FLAT 61, MILLBANK COURT, 24 JOHN ISLIP STREET, LONDON, SW1P 4LGFlat or maisonette · Leasehold · £545,0004 months ago1 May 2026
- FLAT 12, ASTRAL HOUSE REGENCY PLACE, LONDON, SW1P 2EAFlat or maisonette · Leasehold · £460,9054 months ago1 May 2026
- 140A, ASHLEY GARDENS THIRLEBY ROAD, LONDON, SW1P 1HNFlat or maisonette · Leasehold · £1,187,5004 months ago1 May 2026
Homes here go for about £675,000 — the median of the last 7 market sales in SW1P (the wider postcode district), £460,905 to £1,187,500.
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.
Nearby applications
- 20 Great Smith Street Westminster SW1P 3BTPermittedNext door
- 20 Great Smith Street Westminster SW1P 3BTPermittedNext door
- 20 Great Smith Street Westminster SW1P 3BTWithdrawnNext door
- 20 Great Smith Street Westminster SW1P 3BTPermittedNext door
- 20 Great Smith Street Westminster SW1P 3BTPermittedNext door
- 20 Great Smith Street Westminster SW1P 3BTPermittedNext door