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Get started8 The Warren is a detached house in Radlett (WD7 7DX). It has a recorded floor area of 1109 m² (around 11937 sq ft) and construction records dating it to 1930-1949. The latest certificate (February 2016) returns a high B (score 90), putting the home a stone's throw from an A rating. When first surveyed in August 2012 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Poor to Very Good and window efficiency went from Poor to Very Good. The latest certificate is from February 2016, so improvements made since then won't be reflected.
At 1109 m² the property is well over the postcode median (335 m² across 7 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 86% of similar EPCs). Today's modelled estimate of £4,081,000 is 49.8% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£228/sq ft) was about 60.5% below the postcode norm. On the market in April 2013 and unlisted since — roughly 13 years. 11 planning records sit against the property, 6 approved, 3 refused.
8 The Warren's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 10 Feb 2026
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Variation of conditions 2, 3, and 7 to allow removal of 'no development shall take place before .....' , condition 9 to change wording to 'a landscaping scheme to be submitted and approved as part of this application, condition 11 to vary the original approved plans of TP/13/1321 and variation of condition 12 to state 'the scheme shall be implemented in accordance with the construction mangement plan submitted as part of the application.' (Amended Description)
8 The Warren valuation sits well clear of the typical sold price in this postcode.
£4,081,000
Modelled from EPC, postcode comparables.
£2,725,000
Recorded with HM Land Registry.
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8 The Warren outperforms the street on epc rating by a wide margin.
Price per m²
£2,457
Street avg £6,630
Floor Area
1109 m²
Street avg 344 m²
CO₂ Emissions
11.0 t/year
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 upgraded for better temperature management
Hot water system upgraded
Windows upgraded to triple glazing
Wall insulation improved
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Mechanical ventilation installed
Solar water heating installed
Hot water system changed
Loft insulation upgraded to recommended levels
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Application for approval of details reserved by condition(s) 2, 3, 5, & 7 of planning permission reference TP/13/1321.
9 more applications for this property
See the full planning history in the property report.
2 April 2013Most recent
£2,725,000
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
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Comparable sales, transport, crime, schools and more

Street avg 11.6 t/year
Years Held
13 years
Street avg 10 years
WD7 7ED
Closest school
1.0 km
Newberries Primary School. 6 schools nearby.
Night-time· 23:00 – 07:00
36.3dB