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Get startedWashington House is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 1AR). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to before 1900 and council tax band H. At 145 m² this is the smallest unit on EPC record across Washington House (145–215 m²). The building's EPC ratings span E to B across 8 units on file. The latest certificate (November 2022) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 3 certificates since May 2010. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Poor to Very Good; while window efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 73).
Held since February 2001 — that's 25 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £2,542,000 sits 263.1% above the 2001 sale of £700,000. On a £-per-square-foot basis, the last sale (£448/sq ft) was about 52% below the postcode norm. One historical planning record sits against the property in 2011.
FELL 1 x Robinia (rear).
Washington House's estimated value is more than triple its earliest registered sale price (2001).
£2,542,000
Modelled from EPC, postcode comparables.
£700,000
Recorded with HM Land Registry.
Everything we know about this property, compiled into one in-depth, downloadable report.
Washington House is notably below the street on floor area.
Price per m²
£4,828
Street avg £16,674
Floor Area
145 m²
Street avg 176 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Knightsbridge Station / Harrods — bus stop.

Daytime· 07:00 – 23:00
58.0dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Heating controls changed
Hot water system changed
Wall insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
16 February 2001Most recent
£700,000
Median price across the last 5 sales in SW3 1AR: £3,850,000 (2024–2014).
Washington House Flat 6 Basil Street Kensington And Chelsea London
Sold Nov 2024
Washington House Flat 12 Basil Street Kensington And Chelsea London
Sold Sept 2024
Washington House Flat 4 Basil Street Kensington And Chelsea London
Sold Oct 2022
Washington House Flat 2 Basil Street Kensington And Chelsea London
Sold Jan 2019
Washington House Flat 7 Basil Street Kensington And Chelsea London
Sold Aug 2001
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Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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Street avg 5 rooms
CO₂ Emissions
5.9 t/year
Street avg 5.9 t/year
SW3 1RT
Closest school
0.8 km
St Joseph's Catholic Primary School. 49 schools nearby.
Night-time· 23:00 – 07:00
49.5dB