18 Birch Green, Staines Upon Thames, TW18 4HA
About 18 Birch Green
18 Birch Green is a semi-detached house in Staines Upon Thames (TW18 4HA). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (December 2018) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump.
One planning record on file: an extension approved in 2026. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. At 103 m² it's 19.1% larger than the typical home in the postcode (87 m² median across 12 EPCs). Across 2006–2021, sale prices on this property compounded at 2.9% per year. Today's modelled estimate of £523,000 is 15.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£408/sq ft) was about 101.4% above the typical sold price in the postcode. Most recent transfer: May 2021 at £452,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 18 Birch Green
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
Planning history
- Mar 2026Garage ConversionFullIn report
Extension: Single storey · Side and rear of property
Erection of a single storey side and rear extension connecting to existing rear extension. Garage conversion into habitable space, to be used as office.
- Agent
- Architecture Everything
Extension- Documents
- 11 docs on file
- Reference
- 26/00034/HOU
We flagged 3 things worth checking at 18 Birch Green
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
- Environmental risk flagged
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£523,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.9% per year over 14 years.
£452,500
Growth on file: 2.9% per year over 14 years.
Sales timeline
13 May 2021Most recent
£452,500
+52.1%over 14 years28 November 2006
£297,500
Median price across the last 5 sales in TW18 4HA: £250,000 (2019–2010).
Nearby sales in TW18 4HA
1 Waterboard Cottages, Birch Green, Staines Upon Thames, TW18 4HA
Sold Jan 2019
£500,00036 Birch Green, Staines Upon Thames, TW18 4HA
Sold Oct 2013
£295,0002 Waterboard Cottages, Birch Green, Staines Upon Thames, TW18 4HA
Sold Mar 2013
£240,0008 Birch Green, Staines Upon Thames, TW18 4HA
Sold Nov 2010
£220,00034 Birch Green, Staines Upon Thames, TW18 4HA
Sold Oct 2009
£275,000
Everything we know about 18 Birch Green, 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
- Environmental risk flagged
Versus other Birch Green homes
On years held, 18 Birch Green runs well behind the street norm.
Price per m²
£4,393
Street avg £3,431
Floor Area
103 m²
Street avg 86 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.0 t/year
Street avg 4.2 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Kingston Road — bus stop.
Closest school
1.1 km
Riverbridge Primary School. 13 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
57.6dB
Night-time· 23:00 – 07:00
49.8dB