21c, Harte Road, Hounslow, TW3 4LD
About 21c
21c is a semi-detached house in Hounslow (TW3 4LD). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (November 2021) shows a C (score 70). Earlier certificates rated it B (July 2009); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 86).
5 planning records sit against the property, 2 approved, 1 refused, 1 pending. Past consents include an extension and a porch, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. Today's modelled estimate of £491,000 is 14.2% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£596/sq ft) was about 106.1% above the typical sold price in the postcode. Last sale on file: £430,000 in November 2023.
Know exactly what you're buying at 21c
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
Planning history
There is a planning application currently awaiting a decision.
- Apr 2026ExtensionConditionsIn report
Extension: Rear of property
Variation of conditions 4 and 5 (permit development rights) to vary the wording to enable the erection of rear roof extension with front roof windows and front porch extension of planning permission 00563/21/P2 (P/2005/2500) approved 10/10/2005 for demolition of bungalow and erection of a terrace of three two-storey (2 bedroom) houses with associated parking.
- Documents
- 7 docs on file
- Reference
- P/2026/1101
- Jan 2025OutbuildingFullIn report
Erection of a detached outbuilding in the rear garden.
- Documents
- 12 docs on file
- Reference
- P/2024/2864
We flagged 1 thing worth checking at 21c
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
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Sales history & valuation
21c valuation sits well clear of the typical sold price in this postcode.
£491,000
Modelled from EPC, postcode comparables.
£430,000
Recorded with HM Land Registry.
Sales timeline
15 November 2023Most recent
£430,000
Median price across the last 5 sales in TW3 4LD: £445,000 (2024–2019).
Everything we know about 21c, 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
21c is notably below the street on years held.
Price per m²
£6,418
Street avg £3,544
Floor Area
67 m²
Street avg 82 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.3 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