Topaz Apartments, Flat 4, High Street, Hounslow, TW3 1AJ
About Topaz Apartments
Topaz Apartments is a mid-terrace house in Hounslow (TW3 1AJ). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 2012 onwards and council tax band C. At 86 m² this is the largest unit on EPC record across Topaz Apartments (47–86 m²). The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (February 2025) shows a C (score 74). Earlier certificates rated it B (February 2015); the latest reading is one band lower. Between certificates, window efficiency dropped from Very Good to Good.
At 86 m² the property is well over the postcode median (54 m² across 60 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).
Know exactly what you're buying at Topaz Apartments
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
Planning history
Topaz Apartments has no planning applications on record.
Notable planning nearby
23applications of note in the surrounding area
We flagged 2 things worth checking at Topaz Apartments
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
Topaz Apartments has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£328,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in TW3 1AJ: £285,000 (2025–2018).
Nearby sales in TW3 1AJ
Topaz Apartments, Flat 40, High Street, Hounslow, TW3 1AJ
Sold Jun 2025
£310,000Topaz Apartments, Flat 49, High Street, Hounslow, TW3 1AJ
Sold Jan 2020
£285,000Topaz Apartments, Flat 50, High Street, Hounslow, TW3 1AJ
Sold Oct 2019
£340,000Topaz Apartments, Flat 14, High Street, Hounslow, TW3 1AJ
Sold Jul 2018
£110,000Topaz Apartments, Flat 48, High Street, Hounslow, TW3 1AJ
Sold Jan 2018
£275,000
Everything we know about Topaz Apartments, 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 High Street homes
Floor Area for Topaz Apartments runs comfortably ahead of the street norm.
EPC Rating
74 (C)
Street avg 82 (B)
Floor Area
86 m²
Street avg 59 m²
CO₂ Emissions
2.4 t/year
Street avg 0.9 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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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
0.0 km
School Road (TW3) — bus stop.
Closest school
0.1 km
Hounslow Town Primary School. 52 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
52.6dB
Night-time· 23:00 – 07:00
42.2dB