24 Sidmouth Avenue, Isleworth, TW7 4DW
About 24 Sidmouth Avenue
24 Sidmouth Avenue is a four-bedroom semi-detached house in Isleworth (TW7 4DW). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (April 2017) shows a D (score 58), a step below the typical UK home. The recommended improvements would lift it to B (score 81), a 2-band jump. The home occupies a cul-de-sac position.
3 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1997–2018, sale prices on this property compounded at 9.2% per year. Today's modelled estimate of £704,000 is 22.4% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£574/sq ft) was about 29.3% above the typical sold price in the postcode. Last sale on file: £575,000 in July 2018.
Know exactly what you're buying at 24 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
- Bedrooms4
- Bathrooms2
- EnsuiteYes
- StudyYes
Outside
- Private gardenRear
- ParkingOff street
- Cul-de-sacYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
Multiple extension applications run across more than a decade of planning history at 24 Sidmouth Avenue.
- Sept 2025ExtensionOutlineIn report
Extension: Single storey · Rear of property
Prior Approval for the ground floor rear extension 3.50 metres deep, maximum height 3.70 metres, 2.50 metres high to the eaves.
- Documents
- 6 docs on file
- Reference
- PA/2025/2365
- Jun 2004ExtensionOutlineIn report
Certificate of Lawfulness for the proposed erection of a rear roof extension to existing dwellinghouse.
- Reference
- P/2004/1061
We flagged 2 things worth checking at 24 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
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Sales history & valuation
24 Sidmouth Avenue has more than quadrupled in price since its earliest registered sale in 1997.
£704,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.2% per year over 21 years.
£575,000
Growth on file: 9.2% per year over 21 years.
Sales timeline
31 July 2018Most recent
£575,000
+36.1%over 10 years21 December 2007
£422,500
+369.4%over 10 years29 June 1997
£90,000
Median price across the last 5 sales in TW7 4DW: £575,000 (2024–2022).
Nearby sales in TW7 4DW
Everything we know about 24 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
24 Sidmouth Avenue outperforms the street on habitable rooms by a wide margin.
Price per m²
£6,183
Street avg £5,900
Floor Area
93 m²
Street avg 96 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.5 t/year
Street avg 4.6 t/year
Similar properties nearby
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