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Get started21 23, Belgrave Mews South, Westminster, London, SW1X 8BT
1 planning record
About 21 23
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 23 is a mid-terrace house in Westminster, London, London (SW1X 8BT). It has a recorded floor area of 380 m² (around 4088 sq ft), construction records dating it to 2003-2006 and council tax band H. The latest certificate (February 2009) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). The latest certificate is from February 2009, so improvements made since then won't be reflected.
It hasn't traded since October 2001, a hold of 25 years that's notably long for the area. At 380 m² the property is well over the postcode median (124 m² across 11 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £9,647,000 sits 285.9% above the 2001 sale of £2,500,000. On a £-per-square-foot basis, the last sale (£612/sq ft) was about 45.9% below the postcode norm. One historical planning record sits against the property in 2002.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
21 23's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 06 Feb 2019
Planning history
Applications and permits filed against 21 23, Belgrave Mews South, Westminster, London, SW1X 8BT, sourced from the PlanIt planning register.
- Oct 2002ConditionsGranted
Cross section through mansard pursuant to condition 3 of permission dated 12 August 2002 (RN 02/03345)
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
21 23's estimated value is more than triple its earliest registered sale price (2001).
Current estimate
See how we calculated this£9,647,000
Modelled from EPC, postcode comparables.
Last sold (2001)
£2,500,000
Recorded with HM Land Registry.
Sales timeline
Launch offer · 33% off
The complete analysis of 21 23, Belgrave Mews South, Westminster, London, SW1X 8BT
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
An AI-written breakdown of everything that matters
Versus other Belgrave Mews South homes
Four headline reads against 11 similar houses on this street, drawn from the latest EPC and Land Registry data.
Price per m² for 21 23 lags the street by a wide margin.
Price per m²
£6,583
Street avg £18,696
Floor Area
380 m²
Street avg 183 m²
Habitable Rooms
8 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
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.
Road noise across the postcode
Modelled day and night-time noise levels around SW1X 8BT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
61.7dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 93 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 23, Belgrave Mews South, Westminster, London, SW1X 8BT. Each answer is also embedded as structured data for search engines.
