33 Castle Road, Isleworth, TW7 6QR
About 33 Castle Road
33 Castle Road is a three-bedroom end-of-terrace house in Isleworth (TW7 6QR). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (September 2019) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in September 2008 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Average to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
One planning record on file: a loft conversion approved in 2023. Past consents include a loft conversion, meaningful when judging how the property has evolved. Today's modelled estimate of £650,000 is 18.6% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£504/sq ft) was about 60.3% above the typical sold price in the postcode. Most recent transfer: September 2020 at £548,000.
Know exactly what you're buying at 33 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
- Bathrooms1
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
Ventilation system changed
Planning history
- Dec 2023Loft ConversionOutlineIn report
Certificate of Lawfulness for proposed erection of rear roof dormer and one front roof light to house.
- Documents
- 5 docs on file
- Reference
- P/2023/3476
We flagged 2 things worth checking at 33 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£650,000
Modelled from EPC, postcode comparables.
£548,000
Recorded with HM Land Registry.
Sales timeline
16 September 2020Most recent
£548,000
Median price across the last 5 sales in TW7 6QR: £591,000 (2025–2023).
Everything we know about 33 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
Price per m²
£5,426
Street avg £5,223
Floor Area
101 m²
Street avg 94 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.6 t/year
Street avg 4.4 t/year
Similar properties nearby
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1 Busch Close
TW7 6UE
1 Gumley Gardens
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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