15a, Harte Road, Hounslow, TW3 4LD
About 15a
15a is a semi-detached house in Hounslow (TW3 4LD). It has a recorded floor area of 104 m² (around 1119 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (September 2025) shows a C (score 72). When first surveyed in July 2014 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would push it to B (score 84).
At 104 m² the property is well over the postcode median (78 m² across 28 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £559,000 sits 59.7% above the 2014 sale of £350,000. 12 years since the last transfer (October 2014). 2 planning records sit against the property, 0 approved, 0 refused.
Know exactly what you're buying at 15a
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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
15a has 2 separate extension applications on the council record.
- Jul 2015ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a single storey rear extension to the house
- Documents
- 5 docs on file
- Reference
- P/2015/1091
- Feb 2015ExtensionOutlineIn report
Extension: Single storey · Rear of property
Ground floor rear extension 5 metres deep, maximum height of 2.5 metres, 2.4 metres high to the eaves
- Documents
- 9 docs on file
- Reference
- PA/2015/0034
We flagged 1 thing worth checking at 15a
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
30-day money-back guarantee
Sales history & valuation
15a valuation sits well clear of the typical sold price in this postcode.
£559,000
Modelled from EPC, postcode comparables.
£350,000
Recorded with HM Land Registry.
Sales timeline
14 October 2014Most recent
£350,000
Median price across the last 5 sales in TW3 4LD: £445,000 (2024–2021).
Everything we know about 15a, 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

Versus other Harte Road homes
On habitable rooms, 15a stands well clear of the street.
Price per m²
£3,365
Street avg £3,735
Floor Area
104 m²
Street avg 81 m²
Habitable Rooms
6 rooms
Street avg 4 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.4 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
16/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Queenswood Avenue — bus stop.
Closest school
0.2 km
Wellington Primary School. 40 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
53.5dB

Night-time· 23:00 – 07:00
46.2dB