1 Algar Close, Isleworth, TW7 7AQ
About 1 Algar Close
1 Algar Close is a detached house in Isleworth (TW7 7AQ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1930-1949 and council tax band C. At 56 m² this is the 8th smallest of 21 units on EPC record in the building, where floor areas span 54–131 m². The building's EPC ratings span E to B across 21 units on file. The latest certificate (January 2019) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77).
Across 2016–2019, sale prices on this property compounded at -31.1% per year. Today's modelled estimate of £662,000 sits 154.6% above the 2019 sale of £260,000. On a £-per-square-foot basis, the last sale (£431/sq ft) was about 17.8% below the postcode norm. Most recent transfer: April 2019 at £260,000. One historical planning record sits against the property in 2025.
Know exactly what you're buying at 1 Algar Close
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Planning history
A recent planning application at 1 Algar Close was refused — worth checking the council file.
- Sept 2025OutbuildingFullIn report
Erection of garages on Algar Close
- Documents
- 8 docs on file
- Reference
- P/2025/1635
We flagged 2 things worth checking at 1 Algar Close
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.
- Larger development activity nearby
- A planning decision worth checking
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Sales history & valuation
1 Algar Close valuation sits well clear of the typical sold price in this postcode.
£662,000
Modelled from EPC, postcode comparables and a sale-price growth of -31.1% per year over 3 years.
£260,000
Growth on file: -31.1% per year over 3 years.
Sales timeline
9 April 2019Most recent
£260,000
-67.1%over 2 years14 April 2016
£789,950
Median price across the last 5 sales in TW7 7AQ: £347,000 (2025–2022).
Nearby sales in TW7 7AQ
14 Algar Close, Isleworth, TW7 7AQ
Sold Feb 2025
£347,0004 Stainton Terrace, Algar Close, Isleworth, TW7 7AQ
Sold Oct 2024
£940,00016 Algar Close, Isleworth, TW7 7AQ
Sold Oct 2023
£267,00012a, Algar Close, Isleworth, TW7 7AQ
Sold Sept 2023
£290,0003 Stainton Terrace, Algar Close, Isleworth, TW7 7AQ
Sold Jun 2022
£850,000
Everything we know about 1 Algar Close, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
- A planning decision worth checking

Versus other Algar Close homes
1 Algar Close is notably below the street on price per m².
Price per m²
£4,643
Street avg £5,351
Floor Area
56 m²
Street avg 56 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.6 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Isleworth Library — bus stop.
Closest school
0.2 km
Worple Primary School. 45 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
52.1dB

Night-time· 23:00 – 07:00
43.4dB