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Get started40 Elm Walk is a four-bedroom detached house in Radlett (WD7 8DP). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (August 2019) shows a C (score 74). When first surveyed in April 2011 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 85).
Sale prices here have outpaced England HPI: 7.5% per year against 0% for the wider region. Today's modelled estimate of £1,174,000 is 16.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£626/sq ft) was about 87.4% above the typical sold price in the postcode. Sold January 2021 for £1,010,000. Across the public record there are 6 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. 5 planning records sit against the property, 4 approved, 1 refused. Past consents include an extension, partial demolition and a conservatory, meaningful when judging how the property has evolved.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Single storey · Rear of property
40 Elm Walk has more than quadrupled in price since its earliest registered sale in 1997.
£1,174,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 23 years.
£1,010,000
Growth on file: 7.5% per year over 23 years.
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40 Elm Walk outperforms the street on price per m² by a wide margin.
Price per m²
£6,733
Street avg £5,247
Floor Area
150 m²
Street avg 147 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Shops — bus stop.

Daytime· 07:00 – 23:00
47.0dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
More low energy lighting installed
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Proposed single storey rear extension following demolition of existing rear conservatory.
Extension: Part single, part two storey
Demolition of existing garage and rear conservatory; Erection of two storey front extension and part single and two storey rear extension.
3 more applications for this property
See the full planning history in the property report.
26 January 2021Most recent
£1,010,000
+51.9%over 7 years6 December 2013
£665,000
+41.5%over 6 years24 May 2007
£470,000
+517.4%over 5 years15 November 2001
£76,121
-66.5%over 2 years14 May 1999
£227,000
+19.5%over 1 year9 December 1997
£190,000
Median price across the last 5 sales in WD7 8DP: £940,000 (2025–2019).
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 6 rooms
CO₂ Emissions
4.2 t/year
Street avg 5.6 t/year
WD7 8JE
Closest school
0.4 km
St John's Church of England Infant and Nursery School. 4 schools nearby.
Night-time· 23:00 – 07:00
38.0dB