21 Granville Avenue, Hounslow, TW3 3TF
About 21 Granville Avenue
21 Granville Avenue is a semi-detached house in Hounslow (TW3 3TF). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (October 2018) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in October 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while roof efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 81), a 2-band jump.
It hasn't traded since January 1999, a hold of 27 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £453,000 sits 403.3% above the 1999 sale of £90,000. On a £-per-square-foot basis, the last sale (£106/sq ft) was about 61.7% below the postcode norm.
Know exactly what you're buying at 21 Granville 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
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Planning history
21 Granville Avenue has no planning applications on record.
Notable planning nearby
24applications of note in the surrounding area
We flagged 2 things worth checking at 21 Granville 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
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Sales history & valuation
21 Granville Avenue's modelled value sits at over four times its earliest registered sale price (1999).
£453,000
Modelled from EPC, postcode comparables.
£90,000
Recorded with HM Land Registry.
Sales timeline
8 January 1999Most recent
£90,000
Median price across the last 5 sales in TW3 3TF: £540,000 (2024–2020).
Nearby sales in TW3 3TF
Everything we know about 21 Granville 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 Granville Avenue homes
Price per m² for 21 Granville Avenue lags the street by a wide margin.
Price per m²
£1,139
Street avg £3,804
Floor Area
79 m²
Street avg 97 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 4.2 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
16/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Granville Avenue — bus stop.
Closest school
0.3 km
Orchard Primary School. 43 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
51.8dB
Night-time· 23:00 – 07:00
42.9dB