High Timbers House, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DP
About High Timbers House
High Timbers House is a four-bedroom detached house in Horsted Keynes, Haywards Heath, Haywards Heath (RH17 7DP). It has a recorded floor area of 139 m² (around 1496 sq ft) and construction records dating it to 1983-1990. The latest certificate (October 2021) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in March 2010 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 75). Main heating runs on oil. Our model identifies extension potential, subject to local planning policy.
Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Across 2010–2022, sale prices on this property compounded at 4.6% per year. On a £-per-square-foot basis, the last sale (£531/sq ft) was about 68.1% above the typical sold price in the postcode. 4 planning records sit against the property, 0 approved, 1 refused. Last sale on file: £795,000 in May 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at High Timbers 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
- Bedrooms4
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenSouth-east-facing
- GarageYes
Building
- Heating systemOil
- Extension potentialPossible
Energy performance
High Timbers House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
More low energy lighting installed
Planning history
A a loft conversion application was refused at High Timbers House in 2023.
- May 2024Loft ConversionFullIn report
Proposed roof extension and conversion of loft space, with conservation roof lights to the front, a gable dormer to the rear and roof light windows to the right side elevation.
Extension- Documents
- 15 docs on file
- Reference
- DM/24/0571
- Sept 2023Loft ConversionOutlineIn report
Conversion of roof to form two additional bedrooms and a shower room.
- Documents
- 8 docs on file
- Reference
- DM/23/1870
We flagged 2 things worth checking at High Timbers 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
- A planning decision worth checking
30-day money-back guarantee
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£836,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.6% per year over 12 years.
£795,000
Growth on file: 4.6% per year over 12 years.
Sales timeline
26 May 2022Most recent
£795,000
+69.1%over 11 years16 September 2010
£470,000
Median price across the last 5 sales in RH17 7DP: £980,000 (2025–2022).
Nearby sales in RH17 7DP
4 Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DP
Sold Jul 2025
£1,020,000Roxborough, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DP
Sold Jan 2024
£462,500Mulberries, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DP
Sold Nov 2022
£1,050,000Rosebank, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DP
Sold May 2022
£873,000Home Farm, Lewes Road, Horsted Keynes, Haywards Heath, RH17 7DP
Sold Oct 2021
£1,027,500
Everything we know about High Timbers 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
- A planning decision worth checking

Versus other Lewes Road homes
High Timbers House outperforms the street on epc rating by a wide margin.
EPC Rating
60 (D)
Street avg 46 (E)
Floor Area
139 m²
Street avg 158 m²
CO₂ Emissions
6.1 t/year
Street avg 7.1 t/year
Habitable Rooms
6 rooms
Street avg 6 rooms
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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
0.2 km
Lewes Road — bus stop.
Closest school
0.6 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
44.5dB

Night-time· 23:00 – 07:00
36.4dB