A complete guide to property investment in Isleworth.
Last updated: 18 September 2025
Isleworth has a strong family presence, ranking in the 92nd percentile for families and showing a high proportion of degree-educated residents. The area’s property market is fairly active, with 372 sales annually and homes typically spending 92 days on the market. Affordability is a challenge, reflected in a price-to-income ratio of 6.7, which is high but not unusual for London. Rental yields are steady at 5.6%, and the private rented sector is well represented, sitting in the 81st percentile.
Median price per sq ft
£554 / sq ft
Average rental yield
5.6%
Capital growth (1y)
-2.4%
Sales in past year
372
* Property stats calculated for last full calendar year (2024).
Live prices in Isleworth, Middlesex
* Extreme prices clipped for legibility
Median price
£460,000
25% of properties below...
£330,000
75% of properties below...
£699,950
Most expensive property
£8,250,000
Live listings
381
Median days on market
92
The outlook for Isleworth is steady, with the rental market underpinned by a strong family demographic and high demand from private renters. While capital growth has been flat over the past three years (with annualised growth of -0.1%), the area’s fundamentals remain sound.
Affordability is stretched compared to many parts of Britain, but not out of step for London, and buyers should be prepared for longer sale times. Investors can expect stable rental income, especially in the family segment, but should not rely on rapid capital gains in the near term. The overall picture is one of moderate opportunity, with resilience coming from the area’s demographic profile and steady rental returns.
Average yield (%)
* 2025 data for YTD
Median price per sq ft (£/sq ft)
* 2025 data for YTD
Investment properties in Isleworth, Middlesex
£375,000
2 bedroom maisonette for sale
Witham Road, Isleworth
£300,000
3 bedroom maisonette for sale
Mogden Lane, Isleworth
£242,000
1 bedroom flat for sale
Twickenham Road, Isleworth
£1,060,000
6 bedroom semi-detached house for sale
Harewood Road, Isleworth
£547,500
3 bedroom semi-detached house for sale
Thatchers Way, Isleworth
£179,950
2 bedroom flat for sale
Golden Court, Isleworth
Discounts exist, but they won't transform deal economics on their own.
• Median discount: £10,250
• 1 in 4 properties sell at > £24,950 below asking
• 1 in 10 properties sell at > £35,000 below asking
In percentage terms:
• Median discount of 2.3%
• 25% of properties discounted by > 4.2%
• 10% of properties discounted by > 6.2%
Top postcodes for rental yield and (annualised) capital growth
GeoGlider calculates property investment stats by blending official and proprietary datasets. Here's a quick overview of key sources and how we use them:
HM Land Registry: Property transaction and sold-price records for England & Wales used to calculate historical capital growth, price levels and comparables.
Office for National Statistics (ONS): Demographic and economic indicators for the UK, including Census 2021, supporting area profiling and market context.
Ordnance Survey: Authoritative UK geospatial data powering accurate boundaries, roads and terrain for mapping and spatial analysis.
GeoProp: Our proprietary AI pipeline that processes millions of property listings to extract rich features and live market signals.
Department for Levelling Up, Housing & Communities: Energy Performance Certificate (EPC) scores and property floor areas.
HM Revenue & Customs (HMRC): Household income and employment data to understand local affordability and economic conditions.
Data is updated continuously, matched across sources and rigorously validated.