1 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
About 1 Onslow Mews West
1 Onslow Mews West is a three-bedroom end-of-terrace house in Kensington And Chelsea, London, London (SW7 3AF). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 1991-1995 and council tax band H. The latest certificate (September 2024) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2012. Between certificates, roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 75).
It hasn't traded since March 1996, a hold of 30 years that's notably long for the area. 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 £1,874,000 sits 351.6% above the 1996 sale of £415,000. At 101 m² it sits well below the postcode median (147 m² across 11 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs).
Know exactly what you're buying at 1 Onslow Mews West
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms2
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
More low energy lighting installed
Planning history
1 Onslow Mews West has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 1 Onslow Mews West
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
1 Onslow Mews West's modelled value sits at over four times its earliest registered sale price (1996).
£1,874,000
Modelled from EPC, postcode comparables.
£415,000
Recorded with HM Land Registry.
Sales timeline
8 March 1996Most recent
£415,000
Median price across the last 5 sales in SW7 3AF: £2,750,000 (2025–2015).
Nearby sales in SW7 3AF
4 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
Sold Aug 2025
£2,750,00011 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
Sold Oct 2022
£3,100,00016 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
Sold Sept 2021
£1,865,00017 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
Sold Jan 2018
£2,300,0009 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
Sold Oct 2015
£3,100,000
Everything we know about 1 Onslow Mews West, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby
Versus other Onslow Mews West homes
On years held, 1 Onslow Mews West stands well clear of the street.
Price per m²
£4,109
Street avg £10,805
Floor Area
101 m²
Street avg 143 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.9 t/year
Street avg 4.0 t/year
Similar properties nearby
10 Cranley Mews, Kensington And Chelsea
SW7 3BX
1 Onslow Mews East, Kensington And Chelsea
SW7 3AA
1 Cranley Mews, Kensington And Chelsea
SW7 3BX
1 Barnaby Place, Kensington And Chelsea
SW7 3JW
1 Onslow Gardens, Kensington And Chelsea
SW7 3LX
1 Cranley Gardens, Kensington And Chelsea
SW7 3BB
1 Onslow Square, Kensington And Chelsea
SW7 3NJ
1 Kendrick Mews, Kensington And Chelsea
SW7 3HG
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Onslow Gardens South Kensington — bus stop.
Closest school
0.2 km
Our Lady of Victories RC Primary School. 61 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
59.0dB
Night-time· 23:00 – 07:00
48.6dB