15 Granville Avenue, Hounslow, TW3 3TF
About 15 Granville Avenue
15 Granville Avenue is a four-bedroom semi-detached house in Hounslow (TW3 3TF). It has a recorded floor area of 126 m² (around 1356 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (November 2025) shows a D (score 65), on the cusp of jumping into the C band. Earlier certificates rated it B (April 2018); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Very Good to Very Poor and window efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 80). This certificate was lodged in the last six months, so the rating reflects current condition. Other recorded features include outbuildings.
Untraded for 27 years, with the last transfer in December 1998. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 126 m² the property is well over the postcode median (88 m² across 26 EPCs), placing it in the larger end of the local stock. 4 bedrooms is on the larger side for this postcode, where 2 is the typical count. Today's modelled estimate of £681,000 sits 412% above the 1998 sale of £133,000. On a £-per-square-foot basis, the last sale (£98/sq ft) was about 64.5% below the postcode norm. 5 planning records sit against the property, 2 approved, 3 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 15 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
What this property has
Inside
- Bedrooms4
- Bathrooms3
- EnsuiteYes
Outside
- Private gardenYes
- OutbuildingsYes
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Planning history
A a loft conversion application was refused at 15 Granville Avenue in 2023.
- Jan 2023Loft ConversionOutlineIn report
Extension: Rear of property
Certificate of lawfulness for hip to gable loft conversion with rear dormer and Velux windows to the front and a two storey rear extension.
Extension- Documents
- 6 docs on file
- Reference
- P/2022/3908
- Feb 2021ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a part first floor rear extension with additional side window to the house
- Documents
- 26 docs on file
- Reference
- P/2020/2355
We flagged 3 things worth checking at 15 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
- A planning decision worth checking
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Sales history & valuation
15 Granville Avenue's modelled value sits at over four times its earliest registered sale price (1998).
£681,000
Modelled from EPC, postcode comparables.
£133,000
Recorded with HM Land Registry.
Sales timeline
11 December 1998Most recent
£133,000
Median price across the last 5 sales in TW3 3TF: £540,000 (2024–2020).
Nearby sales in TW3 3TF
Everything we know about 15 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
- A planning decision worth checking

Versus other Granville Avenue homes
15 Granville Avenue is notably below the street on price per m².
Price per m²
£1,056
Street avg £3,810
Floor Area
126 m²
Street avg 95 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.4 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