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Get started28 Elm Walk is a three-bedroom detached house in Radlett (WD7 8DP). It has a recorded floor area of 254 m² (around 2734 sq ft), construction records dating it to 2007 onwards and council tax band H. The latest certificate (September 2014) returns a high B (score 88), putting the home a stone's throw from an A rating. When first surveyed in June 2009 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Poor and main heating dropped from Good to Average. Main heating runs on electricity. The latest certificate is from September 2014, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.
Held since July 2010 — that's 16 years off the open market, well above the local norm. At 254 m² the property is well over the postcode median (144 m² across 17 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £1,273,000 sits 177.7% above the 2010 sale of £458,380. On a £-per-square-foot basis, the last sale (£168/sq ft) was about 49.7% below the postcode norm. 7 planning records sit against the property, 1 approved, 1 refused.
28 Elm Walk ranks among the most efficient homes in the postcode for energy use.
This certificate is over 10 years old and is no longer valid.Expired 08 Sept 2024
Application for approval of details reserved by condition 7 of planning permission reference TP/10/2346.
28 Elm Walk valuation sits well clear of the typical sold price in this postcode.
£1,273,000
Modelled from EPC, postcode comparables.
£458,380
Recorded with HM Land Registry.
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On price per m², 28 Elm Walk runs well behind the street norm.
Price per m²
£1,805
Street avg £5,626
Floor Area
254 m²
Street avg 141 m²
Habitable Rooms
7 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
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Window efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Application for a non-material amendment following the grant of planning permission reference TP/10/2346.
5 more applications for this property
See the full planning history in the property report.
30 July 2010Most recent
£458,380
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
1.5 t/year
Street avg 5.7 t/year
WD7 8JJ
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