11 Castle Road, Isleworth, TW7 6QR
About 11 Castle Road
11 Castle Road is a three-bedroom end-of-terrace house in Isleworth (TW7 6QR). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (February 2015) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2010. Between certificates, lighting went from Good to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from February 2015, so improvements made since then won't be reflected.
At 114 m² it's 26% larger than the typical home in the postcode (91 m² median across 30 EPCs). Across 2008–2015, sale prices on this property compounded at 8.9% per year. Today's modelled estimate of £738,000 is 20% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£501/sq ft) was about 58.1% above the typical sold price in the postcode. Last changed hands 11 years ago, in July 2015. One historical planning record sits against the property in 2015.
Know exactly what you're buying at 11 Castle Road
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
- Bedrooms3
- Dining roomYes
Outside
- Private gardenRear
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Feb 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Planning history
- Mar 2015OutlineIn report
Certfificate of Lawfulness for an existing rear roof extension with three roof windows to front elevation
Retrospective- Documents
- 3 docs on file
- Reference
- P/2015/0354
We flagged 2 things worth checking at 11 Castle Road
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
11 Castle Road saw 3 transfers in just over a decade — high turnover for the postcode.
£738,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.9% per year over 7 years.
£615,000
Growth on file: 8.9% per year over 7 years.
Sales timeline
23 July 2015Most recent
£615,000
+74.5%over 4 years16 September 2010
£352,500
+8.1%over 2 years31 January 2008
£326,000
Median price across the last 5 sales in TW7 6QR: £591,000 (2025–2023).
Everything we know about 11 Castle Road, 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 Castle Road homes
11 Castle Road outperforms the street on habitable rooms by a wide margin.
Price per m²
£5,395
Street avg £5,224
Floor Area
114 m²
Street avg 93 m²
Habitable Rooms
7 rooms
Street avg 4 rooms
CO₂ Emissions
4.9 t/year
Street avg 4.4 t/year
Similar properties nearby
1 Alton Close
TW7 6AL
1 Essex Avenue
TW7 6LF
1 Aylett Road
TW7 6NP
1 Gibson Close
TW7 6LZ
1 Elmer Gardens
TW7 6EY
1 Busch Close
TW7 6UE
1 Gumley Gardens
TW7 6PW
1 Chase Court, Amhurst Gardens
TW7 6AH
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St John The Baptist — bus stop.
Closest school
0.4 km
Isleworth Town Primary School. 44 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
54.2dB

Night-time· 23:00 – 07:00
44.2dB