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Get started18 The Warren is a five-bedroom detached house in Radlett (WD7 7DX). It has a recorded floor area of 247 m² (around 2659 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (June 2025) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2015. Between certificates, roof efficiency went from Average to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to C (score 79).
At 247 m² it sits well below the postcode median (368 m² across 7 EPCs), making it one of the more compact homes locally. 6 planning records sit against the property, 4 approved, 1 refused. Past consents include partial demolition, a basement excavation and an annexe, meaningful when judging how the property has evolved. Today's modelled estimate of £2,653,000 is 18.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£843/sq ft) was about 84.6% above the typical sold price in the postcode. Most recent transfer: August 2020 at £2,240,000.
18 The Warren's carbon output runs well above what efficient homes in the postcode produce.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Application for approval of details reserved by conditions 2 (details of external materials), 3 (details of balustrades and/or screening to balcony and terrace), 5 (arboricultural method statement), 10 (preliminary asbestos survey), 12 (sustainability statement), 13 (electric vehicle charging scheme), 18 (construction method statement), and 19 (details of existing and final ground and slab levels) of planning permission reference 25/1186/FUL.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£2,653,000
Modelled from EPC, postcode comparables.
£2,240,000
Recorded with HM Land Registry.
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18 The Warren outperforms the street on price per m² by a wide margin.
Price per m²
£9,069
Street avg £5,686
Floor Area
247 m²
Street avg 467 m²
Habitable Rooms
8 rooms
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km
Williams Way — bus stop.

Daytime· 07:00 – 23:00
43.0dB

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Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
Are we missing something? Tell us about home improvements to help adjust your valuation.
Demolition and replacement of the existing two storey dwelling with 1no detached dwelling to include use of roof space, relocation of front access to be central, and installation of a five-bar timber gate and retention of associated ancillary works.
4 more applications for this property
See the full planning history in the property report.
7 August 2020Most recent
£2,240,000
Median price across the last 5 sales in WD7 7DX: £2,250,000 (2025–2016).
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 10 rooms
CO₂ Emissions
11.0 t/year
Street avg 11.6 t/year
WD7 7BN
Closest school
1.0 km
Newberries Primary School. 6 schools nearby.
Night-time· 23:00 – 07:00
36.3dB