1 Boxes Lane, Horsted Keynes, Haywards Heath, RH17 7EJ
About 1 Boxes Lane
1 Boxes Lane is a detached house in Horsted Keynes, Haywards Heath, Haywards Heath (RH17 7EJ). It has a recorded floor area of 188 m² (around 2024 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (May 2025) shows a C (score 71). When first surveyed in March 2025 the rating was D, the property has climbed 1 band since. Between certificates, main heating went from Average to Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.
Held since September 1999 — that's 27 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 188 m² it's 16.8% larger than the typical home in the postcode (161 m² median across 9 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £952,000 sits 296.7% above the 1999 sale of £240,000. On a £-per-square-foot basis, the last sale (£119/sq ft) was about 62.4% below the postcode norm. One historical planning record sits against the property in 2006.
Know exactly what you're buying at 1 Boxes Lane
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
1 Boxes Lane ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls changed
Hot water efficiency decreased
Planning history
- May 2006OutbuildingFullIn report
Erection of a garden shed with verandah.
- Documents
- 4 docs on file
- Reference
- 06/00394/FUL
We flagged 1 thing worth checking at 1 Boxes Lane
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
1 Boxes Lane's estimated value is more than triple its earliest registered sale price (1999).
£952,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
Sales timeline
2 September 1999Most recent
£240,000
Median price across the last 5 sales in RH17 7EJ: £580,000 (2025–2008).
Nearby sales in RH17 7EJ
12 Boxes Lane, Horsted Keynes, Haywards Heath, RH17 7EJ
Sold Feb 2025
£830,00011 Boxes Lane, Horsted Keynes, Haywards Heath, RH17 7EJ
Sold Sept 2024
£875,0007 Boxes Lane, Horsted Keynes, Haywards Heath, RH17 7EJ
Sold Feb 2013
£580,0002 Boxes Lane, Horsted Keynes, Haywards Heath, RH17 7EJ
Sold Aug 2011
£480,00010 Boxes Lane, Horsted Keynes, Haywards Heath, RH17 7EJ
Sold Jul 2004
£436,000
Everything we know about 1 Boxes Lane, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Boxes Lane homes
1 Boxes Lane outperforms the street on epc rating by a wide margin.
Price per m²
£1,277
Street avg £3,833
Floor Area
188 m²
Street avg 157 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.2 t/year
Street avg 7.5 t/year
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1 Danehurst Cottages, Church Lane, Danehill
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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
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Lewes Road — bus stop.
Closest school
0.7 km
St Giles CofE Primary School. 2 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
44.8dB

Night-time· 23:00 – 07:00
36.4dB