Acorn Cottage, Birch Grove, Horsted Keynes, Haywards Heath, RH17 7DH
About Acorn Cottage
Acorn Cottage is a semi-detached house in Horsted Keynes, Haywards Heath, Haywards Heath (RH17 7DH). It has a recorded floor area of 156 m² (around 1679 sq ft) and construction records dating it to 1950-1966. The latest certificate (September 2025) shows a C (score 75), near the top of the C band. When first surveyed in October 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Average to Good and lighting went from Very Poor to Average. Main heating runs on oil.
It hasn't traded since August 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. On energy efficiency it sits in the top 10% of properties in this postcode. Across 2005–2009, sale prices on this property compounded at -0.6% per year. Today's modelled estimate of £867,000 sits 140.8% above the 2009 sale of £360,000. On a £-per-square-foot basis, the last sale (£214/sq ft) was about 53.2% below the postcode norm. One planning record on file: an extension approved in 2023. Past consents include an extension and a porch, meaningful when judging how the property has evolved.
Know exactly what you're buying at Acorn Cottage
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
Acorn Cottage ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system upgraded
Cavity wall insulation installed
Roof insulation improved
More low energy lighting installed
Solar water heating installed
Upgraded to gas central heating
Fuel source changed
Heating controls upgraded for better temperature management
Hot water system changed
High performance glazing installed
Wall insulation improved
Solar PV added
Planning history
- Apr 2023PorchFullIn report
Extension: Side and rear of property
PROPOSED TWO STOREY SIDE & SINGLE STOREY REAR EXTENSION, PORCH & DOMESTIC HEATING OIL STORAGE TANK.
Extension- Documents
- 16 docs on file
- Reference
- WD/2023/0468/F
We flagged 1 thing worth checking at Acorn Cottage
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
Latest sale on Acorn Cottage was the lowest on Land Registry record across the postcode.
£867,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.6% per year over 4 years.
£360,000
Growth on file: -0.6% per year over 4 years.
Sales timeline
26 August 2009Most recent
£360,000
-2.7%over 4 years25 May 2005
£370,000
Median price across the last 5 sales in RH17 7DH: £715,000 (2022–2002).
Nearby sales in RH17 7DH
Tudbridge Gate, Birch Grove, Horsted Keynes, Haywards Heath, RH17 7DH
Sold Oct 2022
£1,825,000Rowan Cottage, Birch Grove, Horsted Keynes, Haywards Heath, RH17 7DH
Sold Nov 2021
£555,000Corner Cottage, Birch Grove, Horsted Keynes, Haywards Heath, RH17 7DH
Sold Aug 2019
£715,000Eriskay, Birch Grove, Horsted Keynes, Haywards Heath, RH17 7DH
Sold Oct 2015
£1,000,000
Everything we know about Acorn Cottage, 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 Birch Grove homes
Acorn Cottage is notably below the street on price per m².
Price per m²
£2,308
Street avg £5,310
Floor Area
156 m²
Street avg 183 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
4.4 t/year
Street avg 10.5 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
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1 Danehurst Cottages, Church Lane, Danehill
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1 Blacksmiths Cottages, Station Road, Horsted Keynes
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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
1.4 km
The Red Lion — bus stop.
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
40.3dB

Night-time· 23:00 – 07:00
35.1dB