Hamsland House, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DY
About Hamsland House
Hamsland House is a five-bedroom detached house in Horsted Keynes, Haywards Heath, Haywards Heath (RH17 7DY). It has a recorded floor area of 312 m² (around 3358 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (March 2016) shows an F (score 36), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 70), a 3-band jump. Main heating runs on oil. The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include attached land beyond the plot. Our model identifies extension potential, subject to local planning policy.
At 312 m² the property is well over the postcode median (152 m² across 10 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs). 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. Today's modelled estimate of £1,648,000 is 26.8% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£387/sq ft) was about 65.2% above the typical sold price in the postcode. 10 planning records sit against the property, 0 approved, 0 refused. Sold July 2018 for £1,300,000.
Know exactly what you're buying at Hamsland House
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
What this property has
Inside
- Bedrooms5
- Dining roomYes
- StudyYes
Outside
- Private gardenYes
- GarageYes
- LandYes
Building
- Extension potentialPossible
Energy performance
Hamsland House's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Mar 2026
EPC Rating
Planning history
- Feb 2026Loft ConversionFullIn report
Two no. rear-facing dormers, installation of 1 no. front-facing and 1 no. rear-facing windows and conservation rooflights to main roof.
- Documents
- 22 docs on file
- Reference
- DM/25/3217
- Aug 2018ConditionsIn report
Discharge of condition 10 relating to planning application DM/18/0498.
- Documents
- 4 docs on file
- Reference
- DM/18/2599
We flagged 1 thing worth checking at Hamsland House
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
Hamsland House valuation sits well clear of the typical sold price in this postcode.
£1,648,000
Modelled from EPC, postcode comparables.
£1,300,000
Recorded with HM Land Registry.
Sales timeline
19 July 2018Most recent
£1,300,000
Median price across the last 5 sales in RH17 7DY: £865,000 (2023–2020).
Nearby sales in RH17 7DY
Trinity, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DY
Sold Aug 2023
£1,760,000Keysford Cottage, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DY
Sold Jul 2023
£865,000Hamsland Dairy, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DY
Sold Oct 2021
£1,330,000The Stables, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DY
Sold Oct 2020
£690,000Ridgehurst, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DY
Sold Jan 2018
£1,350,000
Everything we know about Hamsland House, 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 Lewes Road homes
CO₂ Emissions for Hamsland House lags the street by a wide margin.
Price per m²
£4,167
Street avg £3,930
Floor Area
312 m²
Street avg 182 m²
Habitable Rooms
9 rooms
Street avg 7 rooms
CO₂ Emissions
18.0 t/year
Street avg 8.3 t/year
Similar properties nearby
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1 Corner Cottages, Tanyard Lane, Chelwood Gate
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1 Ashgrove Cottages, The Green, Horsted Keynes
RH17 7AP
1 Danehurst Cottages, Church Lane, Danehill
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1 Blacksmiths Cottages, Station Road, Horsted Keynes
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1 Buckle Lane
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1 Chailey Glimpse, Church Road, Scaynes Hill
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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
0.6 km
Lewes Road — bus stop.
Closest school
0.9 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
44.4dB

Night-time· 23:00 – 07:00
36.3dB