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Get started9 Blackbrook Avenue is a five-bedroom detached house in Hawarden, Deeside, Deeside (CH5 3HJ). It has a recorded floor area of 193 m² (around 2077 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (November 2024) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2022. Between certificates, roof efficiency went from Poor to Good. The recommended improvements would push it to C (score 76). Records show the property has been extended at some point in its history. The home occupies a corner plot.
At 193 m² the property is well over the postcode median (105 m² across 30 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £481,000 sits 63.1% above the 2022 sale of £295,000. On a £-per-square-foot basis, the last sale (£142/sq ft) was about 17.4% below the postcode norm. One planning record on file: an extension refused in 2022. Most recent transfer: May 2022 at £295,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
9 Blackbrook Avenue's carbon output runs well above what efficient homes in the postcode produce.
A recent planning application at 9 Blackbrook Avenue was refused — worth checking the council file.
Extension: Side of property
Demolition of existing lean to garage and erection of a two storey side extension
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£481,000
Modelled from EPC, postcode comparables.
£295,000
Recorded with HM Land Registry.
Floor Area for 9 Blackbrook Avenue runs comfortably ahead of the street norm.
Price per m²
£1,528
Street avg £2,286
Floor Area
193 m²
Street avg 104 m²
Habitable Rooms
8 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Park Avenue — bus stop.
Changes detected from historical EPC data
Heating controls changed
Windows upgraded, improving insulation
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
25 May 2022Most recent
£295,000
Median price across the last 5 sales in CH5 3HJ: £305,000 (2025–2023).
Street avg 5 rooms
CO₂ Emissions
6.0 t/year
Street avg 4.4 t/year
CH5 3TY
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