15 Sidmouth Avenue, Isleworth, TW7 4DW
About 15 Sidmouth Avenue
15 Sidmouth Avenue is a three-bedroom mid-terrace house in Isleworth (TW7 4DW). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (June 2015) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since September 2014. Between certificates, lighting went from Good to Very Good. The recommended improvements would lift it to B (score 91), a 2-band jump. The latest certificate is from June 2015, so improvements made since then won't be reflected.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. On the market in June 2015 and unlisted since — roughly 11 years. Today's modelled estimate of £560,000 is 33.3% above the 2015 sale price.
Know exactly what you're buying at 15 Sidmouth Avenue
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 Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Jun 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
15 Sidmouth Avenue has an approved single-storey rear extension on the planning record.
- Jan 2020ExtensionOutlineIn report
Extension: Single storey · Rear of property
Ground floor rear extension 5.00 metres deep, maximum height 3.30 metres, 3.00 metres high to the eaves
- Documents
- 4 docs on file
- Reference
- PA/2020/0013
- Jan 2020ExtensionOutlineIn report
Certificate of Lawfulness for the erection of a rear roof extension with two front roof windows and a single storey outbuilding for use as a shed in the rear garden of the house
- Documents
- 4 docs on file
- Reference
- P/2020/0008
We flagged 2 things worth checking at 15 Sidmouth Avenue
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
30-day money-back guarantee
Sales history & valuation
15 Sidmouth Avenue valuation sits well clear of the typical sold price in this postcode.
£560,000
Modelled from EPC, postcode comparables.
£420,000
Recorded with HM Land Registry.
Sales timeline
4 June 2015Most recent
£420,000
Median price across the last 5 sales in TW7 4DW: £575,000 (2024–2022).
Nearby sales in TW7 4DW
Everything we know about 15 Sidmouth Avenue, 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 Sidmouth Avenue homes
Price per m²
£5,185
Street avg £5,948
Floor Area
81 m²
Street avg 97 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 4.6 t/year
Similar properties nearby
1 Fairacre, Church Road
TW7 4PJ
1 Herbert Place
TW7 4BU
1 Honnor Gardens
TW7 4SY
1 Eversley Crescent
TW7 4LR
1 Aplin Way
TW7 4RJ
1 Marbaix Gardens
TW7 4FD
1 Meadowbank Close
TW7 4FB
1 Burlington Road
TW7 4LU
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
0.2 km
West Thames College — bus stop.
Closest school
0.2 km
West Thames College. 47 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
53.7dB
Night-time· 23:00 – 07:00
43.3dB