Flat 4, 1 Onslow Gardens, London, SW7 3LX
About Flat 4
Flat 4 is a property in London (SW7 3LX). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to before 1900 and council tax band F. At 47 m² this is the smallest unit on EPC record across the building (47–270 m²). The building's EPC ratings span E to C across 4 units on file. The latest certificate (August 2011) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72). The latest certificate is from August 2011, so improvements made since then won't be reflected.
At 47 m² it sits well below the postcode median (142 m² across 11 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £1,021,000 is 13.4% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£1,779/sq ft) was about 253.1% above the typical sold price in the postcode. Last changed hands 15 years ago, in November 2011. One historical planning record sits against the property in 2012.
Know exactly what you're buying at Flat 4
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
Flat 4's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 02 Aug 2021
EPC Rating
Planning history
- Dec 2012RenovationHeritageIn report
Partial removal of wall to facilitate new doorway into kitchen and provision of a new stud partition wall to close off kitchen to Flat 4 at third floor level. (Internal alterations only). Retrospective application.
- Council
- Thurloe and Smith's Charity
Retrospective- Documents
- 11 docs on file
- Reference
- LB/12/02118
We flagged 2 things worth checking at Flat 4
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 4 valuation sits well clear of the typical sold price in this postcode.
£1,021,000
Modelled from EPC, postcode comparables.
£900,000
Recorded with HM Land Registry.
Sales timeline
3 November 2011Most recent
£900,000
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 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 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 4, 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 4 is notably below the street on floor area.
Price per m²
£19,149
Street avg £19,210
Floor Area
47 m²
Street avg 152 m²
Habitable Rooms
2 rooms
Street avg 5 rooms
CO₂ Emissions
2.3 t/year
Street avg 5.2 t/year
Similar properties nearby
11a, Flat 6, Cranley Place
SW7 3AE
1a, Flat 3, Cranley Gardens
SW7 3BB
13a, Flat 2, Cranley Gardens
SW7 3BB
1a, Flat 4, Cranley Gardens
SW7 3BB
12a, Flat B, Bute Street
SW7 3EX
1a, Flat 2, Cranley Gardens
SW7 3BB
1a, Flat 1, Cranley Gardens
SW7 3BB
21 23, Flat 10, Cranley Gardens
SW7 3BD
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