27 Arnold Crescent, Isleworth, TW7 7NS
About 27 Arnold Crescent
27 Arnold Crescent is a four-bedroom semi-detached house in Isleworth (TW7 7NS). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (June 2018) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in August 2011 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.
6 planning records sit against the property, 3 approved, 2 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Across 2011–2018, sale prices on this property compounded at 10.5% per year. Today's modelled estimate of £724,000 is 19.7% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£520/sq ft) was about 57.4% above the typical sold price in the postcode. 4 bedrooms is on the larger side for this postcode, where 3 is the typical count. Sold November 2018 for £605,000.
Know exactly what you're buying at 27 Arnold Crescent
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
What this property has
Inside
- Bedrooms4
- Bathrooms2
Outside
- Private gardenFront and rear
Building
- Previously extendedYes
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Planning history
A a loft conversion application was refused at 27 Arnold Crescent in 2025.
- Jun 2025Loft ConversionFullIn report
Erection of a rear roof extension with hip to gable conversion and front roof windows to the house.
- Documents
- 8 docs on file
- Reference
- P/2025/1241
- Nov 2024Loft ConversionFullIn report
Proposal for the erection of a hip to gable conversion, rear dormer and three roof windows
- Documents
- 9 docs on file
- Reference
- P/2024/3295
We flagged 2 things worth checking at 27 Arnold Crescent
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
30-day money-back guarantee
Sales history & valuation
27 Arnold Crescent has more than doubled in price since the earliest registered sale in 2011.
£724,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.5% per year over 7 years.
£605,000
Growth on file: 10.5% per year over 7 years.
Sales timeline
30 November 2018Most recent
£605,000
+101.7%over 7 years25 November 2011
£300,000
Median price across the last 5 sales in TW7 7NS: £582,000 (2023–2020).
Nearby sales in TW7 7NS
Everything we know about 27 Arnold Crescent, 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 Arnold Crescent homes
Price per m²
£5,602
Street avg £4,476
Floor Area
108 m²
Street avg 105 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.9 t/year
Street avg 4.3 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Whitton Dene — bus stop.
Closest school
0.6 km
Chase Bridge Primary School. 48 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
50.7dB

Night-time· 23:00 – 07:00
41.6dB