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Get started1 High Firs is a two-bedroom detached house in Radlett (WD7 8BH). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (November 2020) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2009. Between certificates, lighting went from Very Poor to Average; while hot-water efficiency dropped from Good to Average. The recommended improvements would push it to C (score 77). At 106 m² this is the 21st smallest of 32 units on EPC record in the building, where floor areas span 91–118 m². The building's EPC ratings span E to B across 32 units on file.
Sale prices here have outpaced England HPI: 3.9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£583/sq ft) was about 33.3% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Most recent transfer: June 2021 at £665,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2015.
See Attachment 1.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£661,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 11 years.
£665,000
Growth on file: 3.9% per year over 11 years.
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1 High Firs outperforms the street on price per m² by a wide margin.
Price per m²
£6,274
Street avg £5,297
Floor Area
106 m²
Street avg 104 m²
Habitable Rooms
3 rooms
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Newlands Avenue — bus stop.

Daytime· 07:00 – 23:00
47.7dB

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Changes detected from historical EPC data
Hot water system changed
Wall insulation upgraded
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
24 June 2021Most recent
£665,000
+52.9%over 11 years13 April 2010
£435,000
Median price across the last 5 sales in WD7 8BH: £628,000 (2025–2024).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 4 rooms
CO₂ Emissions
4.3 t/year
Street avg 3.1 t/year
WD7 8LZ
Closest school
0.4 km
St John's Church of England Infant and Nursery School. 4 schools nearby.
Night-time· 23:00 – 07:00
39.3dB