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Get started41 Elm Walk is a detached house in Radlett (WD7 8DP). It has a recorded floor area of 185 m² (around 1991 sq ft), construction records dating it to 2012-2021 and council tax band F. The latest certificate (January 2026) returns a B (score 81), comfortably above the UK average. When first surveyed in June 2014 the rating was D, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Average to Good. This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 8.4% per year against 0% for the wider region. Today's modelled estimate of £812,000 is 20.3% above the 2015 sale price. At 185 m² it's 28.5% larger than the typical home in the postcode (144 m² median across 17 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. 5 planning records sit against the property, 3 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. 11 years since the last transfer (March 2015).
41 Elm Walk ranks among the most efficient homes in the postcode for energy use.
41 Elm Walk has been extended on multiple sides of the property across separate planning applications.
Single storey side extension and two storey rear extension. (Certificate of Lawful Development - Proposed).
Price for 41 Elm Walk has grown more than fourfold since the 1996 starting point.
£812,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.4% per year over 19 years.
£675,000
Growth on file: 8.4% per year over 19 years.
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On epc rating, 41 Elm Walk stands well clear of the street.
Price per m²
£3,649
Street avg £5,484
Floor Area
185 m²
Street avg 145 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
High performance glazing installed
Cavity wall insulation installed
Floor insulation added or improved
More low energy lighting installed
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Extension: Two storey · Rear of property
Two storey rear extension including a roof extension, single storey side extension & rear extension to existing detached garage
3 more applications for this property
See the full planning history in the property report.
5 March 2015Most recent
£675,000
+246.2%over 17 years5 June 1997
£195,000
+30.0%over 10 months7 August 1996
£149,950
Median price across the last 5 sales in WD7 8DP: £955,000 (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
3.1 t/year
Street avg 5.6 t/year
WD7 8LQ
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