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Get started21 Croysdale Avenue is a four-bedroom semi-detached house in Sunbury On Thames (TW16 6QP). It has a recorded floor area of 147 m² (around 1582 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (September 2023) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79).
Sale prices here have outpaced England HPI: 4% per year against 0% for the wider region. Today's modelled estimate of £830,000 is 10.7% above the 2024 sale price. At 147 m² it's 16.2% larger than the typical home in the postcode (127 m² median across 6 EPCs). 2 planning records sit against the property, 0 approved, 0 refused. Sold April 2024 for £750,000.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Extension: Single storey · Rear of property
Erection of a single storey rear extension
21 Croysdale Avenue valuation sits well clear of the typical sold price in this postcode.
£830,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 17 years.
£750,000
Growth on file: 4.0% per year over 17 years.
On epc rating, 21 Croysdale Avenue stands well clear of the street.
Price per m²
£5,102
Street avg £5,839
Floor Area
147 m²
Street avg 126 m²
Habitable Rooms
6 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
48.2dB

Application for a certificate of lawfulness for the proposed development of a rear dormer
12 April 2024Most recent
£750,000
+94.8%over 16 years19 June 2007
£385,000
Median price across the last 5 sales in TW16 6QP: £810,000 (2024–2021).
Street avg 6 rooms
CO₂ Emissions
5.3 t/year
Street avg 6.4 t/year
TW16 6EL
Croysdale Avenue — bus stop.
Closest school
0.2 km
Hawkedale Primary School. 17 schools nearby.
Night-time· 23:00 – 07:00
39.3dB
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