Flat 3, 4 Onslow Gardens, London, SW7 3LX
About Flat 3
Flat 3 is a mid-terrace house in London (SW7 3LX). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to before 1900 and council tax band G. At 62 m² this is the smallest unit on EPC record across the building (62–142 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (July 2023) shows a C (score 70). The recommended improvements would push it to B (score 81).
It hasn't traded since July 2002, a hold of 24 years that's notably long for the area. Across 2000–2002, sale prices on this property compounded at 19.6% per year. Today's modelled estimate of £962,000 sits 143.5% above the 2002 sale of £395,000. At 62 m² it sits well below the postcode median (142 m² across 11 EPCs), making it one of the more compact homes locally. One historical planning record sits against the property in 2022.
Know exactly what you're buying at Flat 3
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
- Mar 2022RenovationHeritageIn report
Re-decorating flat. Upgrading electrics. Refurbish bathroom, removing bath and installing walk-in shower. Replacing separate toilet with utility room/clothes washing room. Upgrading kitchen with new units and utilities. Taking out stud wall between kitchen and dining area.
- Council
- Thurloe and Smith's Charity
- Documents
- 13 docs on file
- Reference
- LB/21/07464
We flagged 2 things worth checking at Flat 3
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
Flat 3's estimated value is more than triple its earliest registered sale price (2000).
£962,000
Modelled from EPC, postcode comparables and a sale-price growth of 19.6% per year over 2 years.
£395,000
Growth on file: 19.6% per year over 2 years.
Sales timeline
2 July 2002Most recent
£395,000
+36.2%over 1 year9 October 2000
£290,000
Median price across the last 5 sales in SW7 3LX: £900,000 (2022–2011).
Nearby sales in SW7 3LX
Flat 5, 1 Onslow Gardens, London, SW7 3LX
Sold Jan 2022
£313,750Flat 7, 1 Onslow Gardens, London, SW7 3LX
Sold Dec 2021
£1,500,000Flat 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 1, 1 Onslow Gardens, London, SW7 3LX
Sold Apr 2002
£1,500,000
Everything we know about Flat 3, 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 3 is notably below the street on price per m².
Price per m²
£6,371
Street avg £22,404
Floor Area
62 m²
Street avg 151 m²
Habitable Rooms
2 rooms
Street avg 5 rooms
CO₂ Emissions
2.0 t/year
Street avg 5.3 t/year
Similar properties nearby
1a, Flat 4, Cranley Gardens
SW7 3BB
13a, Flat 2, Cranley Gardens
SW7 3BB
12a, Flat B, Bute Street
SW7 3EX
21 23, Flat 10, Cranley Gardens
SW7 3BD
11a, Flat 6, Cranley Place
SW7 3AE
1a, Flat 7, Cranley Gardens
SW7 3BB
1a, Flat 3, Cranley Gardens
SW7 3BB
11a, Flat 7, Cranley Place
SW7 3AE
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