11a, Aylett Road, Isleworth, TW7 6NP
About 11a
11a is a mid-terrace house in Isleworth (TW7 6NP). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (June 2014) shows an F (score 32), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 82), a 4-band jump. Main heating runs on electricity. The latest certificate is from June 2014, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £554,000 is 30.4% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£500/sq ft) was about 57.6% above the typical sold price in the postcode. On the market in December 2014 and unlisted since — roughly 12 years. 2 planning records sit against the property, 0 approved, 0 refused.
Know exactly what you're buying at 11a
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
Energy performance
11a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 22 Jun 2024
EPC Rating
Planning history
11a has 2 separate extension applications on the council record.
- Feb 2015ExtensionOutlineIn report
Certificate of lawfulness for the erection of a rear roof extension with front roof windows to the house.
- Documents
- 6 docs on file
- Reference
- P/2014/5258
- Feb 2015ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a single storey rear extension to the house.
- Documents
- 9 docs on file
- Reference
- P/2014/5259
We flagged 2 things worth checking at 11a
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
11a valuation sits well clear of the typical sold price in this postcode.
£554,000
Modelled from EPC, postcode comparables.
£425,000
Recorded with HM Land Registry.
Sales timeline
1 December 2014Most recent
£425,000
Median price across the last 5 sales in TW7 6NP: £560,000 (2025–2022).
Everything we know about 11a, 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 Aylett Road homes
EPC Rating for 11a lags the street by a wide margin.
Price per m²
£5,380
Street avg £4,659
Floor Area
79 m²
Street avg 95 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
9.3 t/year
Street avg 4.0 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
0.1 km
Woodlands Road — bus stop.
Closest school
0.3 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
53.3dB

Night-time· 23:00 – 07:00
43.1dB