Flat 7, 1 Onslow Gardens, London, SW7 3LX
About Flat 7
Flat 7 is an end-of-terrace house in London (SW7 3LX). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1900-1929 and council tax band G. At 77 m² this is the 2nd smallest of 4 units on EPC record in the building, where floor areas span 47–270 m². The building's EPC ratings span E to C across 4 units on file. The latest certificate (April 2019) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 78).
At 77 m² it sits well below the postcode median (142 m² across 11 EPCs), making it one of the more compact homes locally. Across 1995–2021, sale prices on this property compounded at 7.8% per year. On a £-per-square-foot basis, the last sale (£1,810/sq ft) was about 205.8% above the typical sold price in the postcode. Last sale on file: £1,500,000 in December 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Flat 7
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
Energy performance
EPC Rating
Planning history
Flat 7 has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at Flat 7
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
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Sales history & valuation
Flat 7 has more than quadrupled in price since its earliest registered sale in 1995.
£1,510,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.8% per year over 26 years.
£1,500,000
Growth on file: 7.8% per year over 26 years.
Sales timeline
17 December 2021Most recent
£1,500,000
+215.8%over 19 years1 February 2002
£475,000
+129.5%over 5 years25 June 1996
£207,000
15 August 1995
£206,500
Median price across the last 5 sales in SW7 3LX: £422,000 (2022–2002).
Nearby sales in SW7 3LX
Flat 5, 1 Onslow Gardens, London, SW7 3LX
Sold Jan 2022
£313,750Flat 2, 1 Onslow Gardens, London, SW7 3LX
Sold Sept 2017
£12,000,000Flat 4, 1 Onslow Gardens, London, SW7 3LX
Sold Nov 2011
£900,000Flat 3, 4 Onslow Gardens, London, SW7 3LX
Sold Jul 2002
£395,000Flat 1, 1 Onslow Gardens, London, SW7 3LX
Sold Apr 2002
£1,500,000
Everything we know about Flat 7, 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 Gardens homes
Flat 7 is notably below the street on years held.
Price per m²
£19,481
Street avg £19,127
Floor Area
77 m²
Street avg 149 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
4.2 t/year
Street avg 5.1 t/year
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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
0.2 km
Onslow Gardens South Kensington — bus stop.
Closest school
0.3 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
59.1dB
Night-time· 23:00 – 07:00
48.8dB