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Get started55 Lyall Mews is a four-bedroom mid-terrace house in Westminster, London, London (SW1X 8DJ). It has a recorded floor area of 156 m² (around 1678 sq ft), construction records dating it to 1900-1929 and council tax band H. The latest certificate (February 2011) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 71). The latest certificate is from February 2011, so improvements made since then won't be reflected.
Sale prices here have outpaced London HPI: 12.5% per year against 0% for the wider region. Today's modelled estimate of £3,611,000 is 62% below the 2016 sale of £9,500,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£5,663/sq ft) was about 295% above the typical sold price in the postcode. Last sold in March 2016, so it's been off the market for around 10 years. Across the public record there are 5 sales, relatively high churn for a single property. One planning record on file: a basement excavation approved in 2011. Past consents include a basement excavation, meaningful when judging how the property has evolved. At 156 m² it's 18.4% smaller than the typical home in the postcode (191 m² median across 12 EPCs).
55 Lyall Mews's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 28 Feb 2021
Excavation of new basement level to provide additional residential accommodation to single family dwelling house.
Latest sale on 55 Lyall Mews was the highest on Land Registry record across the postcode.
£3,611,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.5% per year over 20 years.
£9,500,000
Growth on file: 12.5% per year over 20 years.
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Price per m² for 55 Lyall Mews runs comfortably ahead of the street norm.
Price per m²
£60,952
Street avg £19,509
Floor Area
156 m²
Street avg 195 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
0.2 km
Eaton Square — bus stop.

Daytime· 07:00 – 23:00
60.3dB

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14 March 2016Most recent
£9,500,000
+104.3%over 4 years2 June 2011
£4,650,000
+933.3%over 9 years19 December 2001
£450,000
-70.0%over 1 year20 April 2000
£1,500,000
+70.5%over 4 years16 January 1996
£880,000
Median price across the last 5 sales in SW1X 8DJ: £4,900,000 (2025–2017).
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 7 rooms
CO₂ Emissions
7.6 t/year
Street avg 7.8 t/year
SW1X 8EW
Closest school
0.4 km
Holy Trinity CofE Primary School. 57 schools nearby.
Night-time· 23:00 – 07:00
51.1dB