Helvellyn House, Chalfonts, York, YO24 1EX
About Helvellyn House
Helvellyn House is a four-bedroom detached house in York (YO24 1EX). It has a recorded floor area of 150 m² (around 1611 sq ft), construction records dating it to 2003-2006 and council tax band F. Tenure is freehold. The latest certificate (August 2011) shows a C (score 74). The rating has held steady at C across 2 certificates since March 2009. Between certificates, lighting went from Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The latest certificate is from August 2011, so improvements made since then won't be reflected.
At 150 m² it's 27.4% larger than the typical home in the postcode (118 m² median across 16 EPCs). Today's modelled estimate of £643,000 is 35.4% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£295/sq ft) was about 20% above the typical sold price in the postcode. 15 years since the last transfer (September 2011).
What this property has
Inside
- Bedrooms4
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- GarageYes
Building
- TenureFreehold
- RefurbishedYes
Energy performance
Helvellyn House's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 02 Aug 2021
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
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Planning history
Helvellyn House has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Helvellyn House valuation sits well clear of the typical sold price in this postcode.
£643,000
Modelled from EPC, postcode comparables.
£475,000
Recorded with HM Land Registry.
Sales timeline
19 September 2011Most recent
£475,000
Median price across the last 5 sales in YO24 1EX: £380,000 (2025–2020).
Versus other Chalfonts homes
Helvellyn House outperforms the street on habitable rooms by a wide margin.
Price per m²
£3,174
Street avg £3,170
Floor Area
150 m²
Street avg 118 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
4.0 t/year
Street avg 4.8 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Nelson's Lane — bus stop.
Closest school
0.5 km
Dringhouses Primary School. 25 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
47.0dB

Night-time· 23:00 – 07:00
39.8dB







