Flat 3, 88 Onslow Gardens, London, SW7 3BS
About Flat 3
Flat 3 is a mid-terrace house in London (SW7 3BS). It has a recorded floor area of 66 m² (around 710 sq ft) and construction records dating it to before 1900. At 66 m² this is the 3rd smallest of 5 units on EPC record in the building, where floor areas span 56–224 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (78 versus a worst of 51). The latest certificate (December 2023) shows a C (score 78), near the top of the C band. When first surveyed in September 2013 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Poor to Good, lighting went from Very Poor to Very Good and main heating went from Average to Good. The recommended improvements would push it to B (score 84).
On a £-per-square-foot basis, the last sale (£1,831/sq ft) was about 134.9% above the typical sold price in the postcode. Last sold in February 2014, so it's been off the market for around 12 years. One historical planning record sits against the property in 2014.
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
Flat 3's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water efficiency improved
More low energy lighting installed
Heating system upgraded to a more efficient system
Connected to mains gas supply
Planning history
- Jul 2014RenovationHeritageIn report
Internal alterations
- Council
- Thurloe and Smith's Charity
- Reference
- LB/14/02598
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
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Sales history & valuation
Flat 3 valuation sits well clear of the typical sold price in this postcode.
£1,216,000
Modelled from EPC, postcode comparables.
£1,301,002
Recorded with HM Land Registry.
Sales timeline
6 February 2014Most recent
£1,301,002
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 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
On epc rating, Flat 3 stands well clear of the street.
Price per m²
£19,712
Street avg £15,876
Floor Area
66 m²
Street avg 84 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.5 t/year
Street avg 3.1 t/year
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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 10, 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