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Get started15 Belgrave Mews South is a five-bedroom mid-terrace house in Westminster, London, London (SW1X 8BT). It has a recorded floor area of 483 m² (around 5199 sq ft), construction records dating it to 2007 onwards and council tax band H. The latest certificate (November 2023) shows a D (score 59), a step below the typical UK home. Earlier certificates rated it C (March 2011); the latest reading is one band lower. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Poor to Average and lighting went from Very Poor to Very Good; while wall efficiency dropped from Very Good to Very Poor and main heating dropped from Average to Poor. Main heating runs on electricity.
Today's modelled estimate of £9,188,000 is 38.7% below the 2015 sale of £15,000,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£2,885/sq ft) was about 165.4% above the typical sold price in the postcode. At 483 m² the property is well over the postcode median (124 m² across 11 EPCs), placing it in the larger end of the local stock. 9 planning records sit against the property, 6 approved, 3 refused. Past consents include an extension, a basement excavation, partial demolition and new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. On the market in August 2015 and unlisted since — roughly 11 years.
15 Belgrave Mews South's carbon output runs well above what efficient homes in the postcode produce.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Partial demolition/reconstruction of mews building behind retained front and rear facades including excavation of basement and sub basement and erection of mansard roof extension, alterations to rear garden level including installation of air conditioning unit and intake/extract for internal plant, alterations to front and rear fenestration; removal of condition 4 of planning permission dated 20 November 2008 (RN:08/08002) removing requirement for submission of a supplementary acoustic report demonstrating that the car and passenger lifts will comply with the Council's noise criteria following omission of the car lift.
Latest sale on 15 Belgrave Mews South was the highest on Land Registry record across the postcode.
£9,188,000
Modelled from EPC, postcode comparables.
£15,000,000
Recorded with HM Land Registry.
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15 Belgrave Mews South outperforms the street on price per m² by a wide margin.
Price per m²
£31,056
Street avg £15,637
Floor Area
483 m²
Street avg 173 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Wilton Street — bus stop.

Daytime· 07:00 – 23:00
61.7dB

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Changes detected from historical EPC data
Hot water efficiency improved
Window efficiency improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Demolition and reconstruction of mews building behind retained front facade.
7 more applications for this property
See the full planning history in the property report.
25 August 2015Most recent
£15,000,000
Median price across the last 5 sales in SW1X 8BT: £2,200,000 (2023–2020).
34 Belgrave Mews South Westminster London
Sold Oct 2023
1 3 Belgrave Mews South Westminster London
Sold Jan 2023
30 Belgrave Mews South Westminster London
Sold Dec 2021
20 Belgrave Mews South Westminster London
Sold Jul 2021
36 Belgrave Mews South Westminster London
Sold Nov 2009
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 6 rooms
CO₂ Emissions
14.6 t/year
Street avg 6.4 t/year
Closest school
0.4 km
St Peter's Eaton Square CofE Primary School. 63 schools nearby.
Night-time· 23:00 – 07:00
53.6dB