Flat 5, 82 Onslow Gardens, London, SW7 3BS
About Flat 5
Flat 5 is a mid-terrace house in London (SW7 3BS). It has a recorded floor area of 67 m² (around 725 sq ft), construction records dating it to before 1900 and council tax band G. At 67 m² this is the 4th smallest of 5 units on EPC record in the building, where floor areas span 28–164 m². The building's EPC ratings span E to C across 5 units on file. The latest certificate (October 2010) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). The latest certificate is from October 2010, so improvements made since then won't be reflected.
16 planning records sit against the property, 9 approved, 7 refused. Past consents include an extension and new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. On a £-per-square-foot basis, the last sale (£1,622/sq ft) was about 108% above the typical sold price in the postcode. Last sold in August 2011, so it's been off the market for around 15 years.
Know exactly what you're buying at Flat 5
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 5'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This certificate is over 10 years old and is no longer valid.Expired 01 Oct 2020
EPC Rating
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Dec 2016RenovationHeritageIn report
Alterations to door opening at 1st floor level and addition of doors to match opposite (Listed Building Consent only)
- Council
- Thurloe and Smith's Charity
Listed- Documents
- 18 docs on file
- Reference
- LB/16/07011
- Aug 2016HeritageIn report
Variation of condition 1 (Compliance with approved drawings) of listed building consent 16/01195 to alter design.
- Council
- Thurloe and Smith's Charity
Listed- Reference
- LB/16/04146
We flagged 2 things worth checking at Flat 5
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 5 valuation sits well clear of the typical sold price in this postcode.
£1,227,000
Modelled from EPC, postcode comparables.
£1,175,000
Recorded with HM Land Registry.
Sales timeline
7 August 2011Most recent
£1,175,000
Median price across the last 5 sales in SW7 3BS: £935,000 (2024–2020).
Nearby sales in SW7 3BS
Flat 5, 88 Onslow Gardens, London, SW7 3BS
Sold Apr 2024
£1,030,00088 Onslow Gardens, Kensington And Chelsea, London, SW7 3BS
Sold Aug 2023
£75,524Flat 1, 90 Onslow Gardens, London, SW7 3BS
Sold Jan 2021
£590,000Flat 1, 88 Onslow Gardens, London, SW7 3BS
Sold Sept 2020
£4,550,000Flat 2, 88 Onslow Gardens, London, SW7 3BS
Sold Aug 2020
£2,000,000
Everything we know about Flat 5, 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
On habitable rooms, Flat 5 stands well clear of the street.
Price per m²
£17,454
Street avg £15,994
Floor Area
67 m²
Street avg 84 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
3.1 t/year
Street avg 3.0 t/year
Similar properties nearby
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13a, Flat 2, Cranley Gardens
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1a, Flat 4, Cranley Gardens
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12a, Flat B, Bute Street
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21 23, Flat 12, Cranley Gardens
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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. 60 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
58.0dB

Night-time· 23:00 – 07:00
47.6dB