20 Swyncombe Avenue, Hounslow, London, W5 4DS
About 20 Swyncombe Avenue
20 Swyncombe Avenue is a four-bedroom mid-terrace house in Hounslow, London, London (W5 4DS). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (October 2011) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 63). The latest certificate is from October 2011, so improvements made since then won't be reflected. Other recorded features include notable views.
At 101 m² it's 19.1% smaller than the typical home in the postcode (125 m² median across 21 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Across 1999–2012, sale prices on this property compounded at 8.3% per year. Today's modelled estimate of £875,000 is 36.9% above the 2012 sale price. On a £-per-square-foot basis, the last sale (£588/sq ft) was about 56.4% above the typical sold price in the postcode. Last changed hands 14 years ago, in May 2012.
Know exactly what you're buying at 20 Swyncombe Avenue
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
Outside
- ParkingOff street
- Notable viewsYes
Energy performance
20 Swyncombe Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 21 Oct 2021
EPC Rating
Planning history
20 Swyncombe Avenue has no planning applications on record.
Notable planning nearby
19applications of note in the surrounding area
We flagged 2 things worth checking at 20 Swyncombe Avenue
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
30-day money-back guarantee
Sales history & valuation
Sale price has at least doubled since 1999.
£875,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.3% per year over 13 years.
£639,000
Growth on file: 8.3% per year over 13 years.
Sales timeline
29 May 2012Most recent
£639,000
+18.3%over 3 years24 July 2008
£540,000
+140.0%over 9 years29 April 1999
£225,000
Median price across the last 5 sales in W5 4DS: £1,130,000 (2025–2023).
Nearby sales in W5 4DS
8 Swyncombe Avenue, Hounslow, London, W5 4DS
Sold Mar 2025
£1,130,00058 Swyncombe Avenue, Hounslow, London, W5 4DS
Sold Jul 2024
£1,245,00052 Swyncombe Avenue, Hounslow, London, W5 4DS
Sold Dec 2023
£885,00060 Swyncombe Avenue, Hounslow, London, W5 4DS
Sold Oct 2023
£875,00018 Swyncombe Avenue, Hounslow, London, W5 4DS
Sold May 2023
£1,140,000
Everything we know about 20 Swyncombe Avenue, 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

Versus other Swyncombe Avenue homes
Floor Area for 20 Swyncombe Avenue lags the street by a wide margin.
Price per m²
£6,327
Street avg £5,830
Floor Area
101 m²
Street avg 128 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
8.2 t/year
Street avg 5.3 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
14/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Swyncombe Avenue — bus stop.
Closest school
0.3 km
Gunnersbury Catholic School. 36 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
55.1dB

Night-time· 23:00 – 07:00
47.9dB