20a, Spring Grove Road, Hounslow, TW3 4BJ
About 20a
20a is a semi-detached house in Hounslow (TW3 4BJ). It has a recorded floor area of 105 m² (around 1130 sq ft) and construction records dating it to 1930-1949. The latest certificate (October 2024) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2012. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and lighting went from Good to Very Good; while roof efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump.
At 105 m² the property is well over the postcode median (69 m² across 16 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £576,000 sits 294.5% above the 2018 sale of £146,000. On a £-per-square-foot basis, the last sale (£129/sq ft) was about 51.2% below the postcode norm. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sale on file: £146,000 in September 2018.
Know exactly what you're buying at 20a
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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Planning history
20a has 2 separate extension applications on the council record.
- Aug 2024ExtensionFullIn report
Extension: Single storey
Erection of a first floor extension to the shop.
- Documents
- 10 docs on file
- Reference
- P/2024/1695
- Oct 2019ExtensionFullIn report
Extension: Single storey
Erection of a first floor extension to an existing shop
- Documents
- 9 docs on file
- Reference
- P/2019/2943
We flagged 1 thing worth checking at 20a
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
20a's estimated value is more than triple its earliest registered sale price (2018).
£576,000
Modelled from EPC, postcode comparables.
£146,000
Recorded with HM Land Registry.
Sales timeline
3 September 2018Most recent
£146,000
Median price across the last 5 sales in TW3 4BJ: £295,000 (2016–2011).
Nearby sales in TW3 4BJ
26 Spring Grove Road, Hounslow, TW3 4BJ
Sold Oct 2016
£407,00038a, Spring Grove Road, Hounslow, TW3 4BJ
Sold Jan 2016
£275,0002 Spring Grove Road, Hounslow, TW3 4BJ
Sold Jun 2015
£360,00028 Spring Grove Road, Hounslow, TW3 4BJ
Sold Mar 2014
£295,00016 Spring Grove Road, Hounslow, TW3 4BJ
Sold Dec 2011
£275,000
Everything we know about 20a, 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 Spring Grove Road homes
On price per m², 20a runs well behind the street norm.
Price per m²
£1,390
Street avg £4,167
Floor Area
105 m²
Street avg 107 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.8 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
Lampton Avenue — bus stop.
Closest school
0.4 km
Alexandra Primary School. 48 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
54.7dB
Night-time· 23:00 – 07:00
45.5dB