4 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
About 4 Onslow Mews West
4 Onslow Mews West is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW7 3AF). It has a recorded floor area of 157 m² (around 1690 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (December 2016) shows a C (score 72). The rating has held steady at C across 2 certificates since October 2016. Between certificates, lighting went from Average to Good.
At 157 m² the property is well over the postcode median (109 m² across 11 EPCs), placing it in the larger end of the local stock. Most recent transfer was August 2025 at £2,750,000 — fresh data. 5 planning records sit against the property, 4 approved, 1 refused. Past consents include a basement excavation and new windows, meaningful when judging how the property has evolved. Across 1997–2025, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£1,627/sq ft) was about 327.4% above the typical sold price in the postcode.
Know exactly what you're buying at 4 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
- Bathrooms3
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
4 Onslow Mews West has been through 4 approved planning applications — a well-evolved property.
- Dec 2014FullIn report
Form an alcove in roof at back behind parapet wall, fit air conditioning cooler within a sound deadening cabinet and fit three wall-mounted cooling fans inside house.
- Council
- Thurloe and Smith's Charity
- Reference
- PP/14/06978
- Sept 2014OutlineIn report
Lowering of ground floor level beneath original building footprint only
- Council
- Thurloe and Smith's Charity
- Reference
- CL/14/04918
We flagged 2 things worth checking at 4 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
Price for 4 Onslow Mews West has grown more than fourfold since the 1997 starting point.
£2,524,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 29 years.
£2,750,000
Growth on file: 6.0% per year over 29 years.
Sales timeline
20 August 2025Most recent
£2,750,000
+1275.0%over 21 years29 September 2003
£200,000
-72.5%over 2 years18 October 2000
£727,500
+23.8%over 10 months17 December 1999
£587,500
+13.0%over 2 years27 January 1997
£520,000
Median price across the last 5 sales in SW7 3AF: £2,300,000 (2022–2014).
Nearby sales in SW7 3AF
11 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
£3,100,0003 Onslow Mews West, Kensington And Chelsea, London, SW7 3AF
Sold Feb 2014
£499,500
Everything we know about 4 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
Years Held for 4 Onslow Mews West lags the street by a wide margin.
Price per m²
£17,516
Street avg £9,586
Floor Area
157 m²
Street avg 137 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.2 t/year
Street avg 4.0 t/year
Similar properties nearby
1 Onslow Mews East, Kensington And Chelsea
SW7 3AA
10 Cranley Mews, Kensington And Chelsea
SW7 3BX
1 Onslow Mews West, Kensington And Chelsea
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1 Onslow Gardens, Kensington And Chelsea
SW7 3LX
1 Barnaby Place, Kensington And Chelsea
SW7 3JW
1 Cranley Mews, Kensington And Chelsea
SW7 3BX
1 Kendrick Mews, Kensington And Chelsea
SW7 3HG
10 Eagle Place, Kensington And Chelsea
SW7 3RG
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