18 Swyncombe Avenue, Hounslow, London, W5 4DS
About 18 Swyncombe Avenue
18 Swyncombe Avenue is a four-bedroom mid-terrace house in Hounslow, London, London (W5 4DS). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (June 2016) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in March 2015 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and hot-water efficiency went from Average to Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 77). The latest certificate is from June 2016, so improvements made since then won't be reflected. Other recorded features include a basement.
3 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2016–2023, sale prices on this property compounded at 6.7% per year. On a £-per-square-foot basis, the last sale (£990/sq ft) was about 192.4% above the typical sold price in the postcode. Sold May 2023 for £1,140,000.
Know exactly what you're buying at 18 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
- Bathrooms2
- Dining roomYes
- EnsuiteYes
- BasementYes
Outside
- Private gardenYes
- ParkingOff street
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Jun 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Single glazing replaced with double or better glazing
Low energy lighting percentage decreased
Planning history
18 Swyncombe Avenue has 3 separate extension applications on the council record.
- Mar 2017ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a single storey rear extension
- Reference
- P/2017/0152
- Dec 2016ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a rear roof extension with juliette balcony and two roof windows to front elevation.
- Documents
- 7 docs on file
- Reference
- P/2016/5020
We flagged 2 things worth checking at 18 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
18 Swyncombe Avenue saw 3 transfers in just over a decade — high turnover for the postcode.
£1,145,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 7 years.
£1,140,000
Growth on file: 6.7% per year over 7 years.
Sales timeline
24 May 2023Most recent
£1,140,000
+29.5%over 6 years6 January 2017
£880,000
+23.9%over 12 months19 January 2016
£710,000
Median price across the last 5 sales in W5 4DS: £885,000 (2025–2022).
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
£875,00044 Swyncombe Avenue, Hounslow, London, W5 4DS
Sold Jun 2022
£2,000
Everything we know about 18 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
On price per m², 18 Swyncombe Avenue stands well clear of the street.
Price per m²
£10,654
Street avg £5,589
Floor Area
107 m²
Street avg 128 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.9 t/year
Street avg 5.5 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