27a, Heldmann Close, Hounslow, TW3 2PA
About 27a
27a is a four-bedroom semi-detached house in Hounslow (TW3 2PA). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (June 2013) returns an A (score 94), the top energy band on the EPC scale. When first surveyed in March 2011 the rating was C, the property has climbed 2 bands since. Between certificates, window efficiency went from Average to Good. The latest certificate is from June 2013, so improvements made since then won't be reflected. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Period features are noted in the property record. Our model identifies extension potential, subject to local planning policy.
Untraded for 20 years, with the last transfer in June 2006. At 128 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 top 10% of properties in this postcode. Today's modelled estimate of £616,000 sits 98.7% above the 2006 sale of £310,000. On a £-per-square-foot basis, the last sale (£225/sq ft) was about 23.7% below the postcode norm. 2 planning records sit against the property, 0 approved, 0 refused.
Know exactly what you're buying at 27a
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
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- Private gardenYes
Building
- Central heatingYes
- Solar panelsYes
- Period featuresYes
- Extension potentialPossible
Energy performance
27a ranks among the most efficient homes in the postcode for energy use.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 25 Jun 2023
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Sept 2015SubdivisionFullIn report
Erection of a rear roof extension with two roof windows to front elevation and an external staircase to side elevation, to create a self contained flat.
Extension- Documents
- 8 docs on file
- Reference
- P/2015/2933
- Aug 2015ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of single storey rear extension to the house.
- Documents
- 7 docs on file
- Reference
- P/2015/2558
We flagged 1 thing worth checking at 27a
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
27a valuation sits well clear of the typical sold price in this postcode.
£616,000
Modelled from EPC, postcode comparables.
£310,000
Recorded with HM Land Registry.
Sales timeline
5 June 2006Most recent
£310,000
Median price across the last 5 sales in TW3 2PA: £476,000 (2023–2017).
Nearby sales in TW3 2PA
Everything we know about 27a, 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 epc rating, 27a stands well clear of the street.
Price per m²
£2,422
Street avg £4,028
Floor Area
128 m²
Street avg 90 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
0.7 t/year
Street avg 3.6 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