17a, Courtlands Avenue, Richmond, TW9 4EP
About 17a
17a is a detached house in Richmond (TW9 4EP). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (July 2025) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since November 2008. Between certificates, lighting went from Very Poor to Poor; while window efficiency dropped from Average to Poor. At 48 m² this is the 2nd smallest of 31 units on EPC record in the building, where floor areas span 42–127 m². The building's EPC ratings span E to B across 31 units on file.
A recent sale: £287,500 in April 2026. Today's modelled estimate of £344,000 is 19.7% above the 2026 sale price. On a £-per-square-foot basis, the last sale (£556/sq ft) was about 87.3% above the typical sold price in the postcode. At 48 m² it's 29.4% smaller than the typical home in the postcode (68 m² median across 30 EPCs).
Everything you need to know about 17a
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Energy performance
17a's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 16 July 2035
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
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Planning history
17a has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
17a valuation sits well clear of the typical sold price in this postcode.
£344,000
Modelled from EPC, postcode comparables.
£287,500
Recorded with HM Land Registry.
Sales timeline
27 April 2026Most recent
£287,500
Median price across the last 5 sales in TW9 4EP: £570,000 (2026–2023).
Nearby sales in TW9 4EP
Versus other Courtlands Avenue homes
On years held, 17a runs well behind the street norm.
Price per m²
£5,990
Street avg £4,183
Floor Area
48 m²
Street avg 75 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.2 t/year
Street avg 3.3 t/year
Everything you need to know about 17a
The true value, the hidden risks and the full sale history, in one report.
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One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
225/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Courtlands Avenue — bus stop.
Closest school
0.1 km
Kew Riverside Primary School. 30 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
54.1dB
Night-time· 23:00 – 07:00
46.0dB