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Get started4 Black Lion Hill is a three-bedroom semi-detached house in Shenley, Radlett, Radlett (WD7 9DE). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (May 2014) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in January 2009 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Poor to Average; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from May 2014, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.
Sale prices here have outpaced England HPI: 4.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£511/sq ft) was about 51.8% above the typical sold price in the postcode. 4 planning records sit against the property, 4 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Sold June 2021 for £605,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
This certificate is over 10 years old and is no longer valid.Expired 02 May 2024
4 Black Lion Hill has 2 separate extension applications on the council record.
Retrospective application for the installation of a basketball hoop and catch netting supported by 2 x steel posts in rear garden.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£613,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.4% per year over 15 years.
£605,000
Growth on file: 4.4% per year over 15 years.
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4 Black Lion Hill outperforms the street on epc rating by a wide margin.
EPC Rating
62 (D)
Street avg 59 (D)
Floor Area
110 m²
Street avg 119 m²
CO₂ Emissions
4.7 t/year
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
48.4dB

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Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Roof insulation improved
More low energy lighting installed
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Extension: Single storey · Side and rear of property
Construction of a single storey wrap-around side and rear extension (part retrospective application). (Amended Plans received 27/03/2022 - correction to rear extension roof overhang.)
2 more applications for this property
See the full planning history in the property report.
25 June 2021Most recent
£605,000
+89.1%over 14 years29 September 2006
£320,000
Median price across the last 3 sales in WD7 9DE: £398,500 (2012–2004).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
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Comparable sales, transport, crime, schools and more

Street avg 5.6 t/year
Habitable Rooms
6 rooms
Street avg 7 rooms
WD7 9JD
Nell Gwynn Close — bus stop.
Closest school
0.8 km
Clore Shalom School. 5 schools nearby.
Night-time· 23:00 – 07:00
40.0dB