99 Spencer Road, Isleworth, TW7 4BW
About 99 Spencer Road
99 Spencer Road is a one-bedroom semi-detached house in Isleworth (TW7 4BW). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (July 2025) shows an E (score 43), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since February 2013. Between certificates, hot-water efficiency went from Poor to Average and lighting went from Good to Very Good; while window efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity. At 50 m² this is the 3rd smallest of 20 units on EPC record in the building, where floor areas span 47–114 m². The building's EPC ratings span F to C across 20 units on file.
10 years since the last transfer (March 2016). Across the public record there are 4 sales, relatively high churn for a single property. Across 1997–2016, sale prices on this property compounded at 7.6% per year. On a £-per-square-foot basis, the last sale (£427/sq ft) was about 67.9% above the typical sold price in the postcode.
Know exactly what you're buying at 99 Spencer Road
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
- Bedrooms1
Building
- Central heatingYes
Energy performance
99 Spencer Road's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water efficiency improved
More low energy lighting installed
Planning history
99 Spencer Road has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 99 Spencer Road
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
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Sales history & valuation
Sale price has grown by over 3x since 1997.
£247,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 18 years.
£230,000
Growth on file: 7.6% per year over 18 years.
Sales timeline
9 March 2016Most recent
£230,000
+21.1%over 8 years11 October 2007
£190,000
+18.8%over 3 years22 April 2004
£160,000
+166.7%over 6 years20 October 1997
£59,995
Median price across the last 5 sales in TW7 4BW: £450,000 (2021–2013).
Nearby sales in TW7 4BW
Everything we know about 99 Spencer Road, 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 Spencer Road homes
CO₂ Emissions for 99 Spencer Road runs comfortably ahead of the street norm.
Price per m²
£4,600
Street avg £3,464
Floor Area
50 m²
Street avg 50 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
1.2 t/year
Street avg 3.4 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Osterley — bus stop.
Closest school
0.7 km
Spring Grove Primary School. 49 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
54.4dB
Night-time· 23:00 – 07:00
44.8dB