12 Heldmann Close, Hounslow, TW3 2PA
About 12 Heldmann Close
12 Heldmann Close is a semi-detached house in Hounslow (TW3 2PA). It has a recorded floor area of 151 m² (around 1625 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (January 2016) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 4 certificates since December 2015. Between certificates, wall efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 69), a 2-band jump. The latest certificate is from January 2016, so improvements made since then won't be reflected.
Untraded for 21 years, with the last transfer in June 2005. At 151 m² the property is well over the postcode median (84 m² across 20 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £608,000 sits 122.7% above the 2005 sale of £273,000. On a £-per-square-foot basis, the last sale (£168/sq ft) was about 43.1% below the postcode norm. One historical planning record sits against the property in 2022.
Know exactly what you're buying at 12 Heldmann Close
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
12 Heldmann Close 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This certificate is over 10 years old and is no longer valid.Expired 21 Jan 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Cavity wall insulation installed
Planning history
- Dec 2022OutbuildingOutlineIn report
Certificate of Lawfulness for erection of a rear outbuilding in the rear garden
- Documents
- 6 docs on file
- Reference
- P/2022/3735
We flagged 1 thing worth checking at 12 Heldmann Close
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
12 Heldmann Close valuation sits well clear of the typical sold price in this postcode.
£608,000
Modelled from EPC, postcode comparables.
£273,000
Recorded with HM Land Registry.
Sales timeline
30 June 2005Most recent
£273,000
Median price across the last 5 sales in TW3 2PA: £476,000 (2023–2017).
Nearby sales in TW3 2PA
Everything we know about 12 Heldmann Close, 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 Heldmann Close homes
On co₂ emissions, 12 Heldmann Close runs well behind the street norm.
Price per m²
£1,808
Street avg £4,072
Floor Area
151 m²
Street avg 89 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
8.2 t/year
Street avg 3.2 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
16/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Heath Road — bus stop.
Closest school
0.5 km
Chatsworth Primary School. 54 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
49.9dB

Night-time· 23:00 – 07:00
39.2dB