Helens Cottage, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ
About Helens Cottage
Helens Cottage is a detached house in Platt, Sevenoaks, Sevenoaks (TN15 8LZ). It has a recorded floor area of 149 m² (around 1604 sq ft). The latest certificate (April 2014) returns a B (score 83), comfortably above the UK average. The latest certificate is from April 2014, so improvements made since then won't be reflected.
At 149 m² it's 16.4% larger than the typical home in the postcode (128 m² median across 9 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. One historical planning record sits against the property in 2015.
Know exactly what you're buying at Helens Cottage
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Helens Cottage ranks among the most efficient homes in the postcode for energy use.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 15 Apr 2024
EPC Rating
Planning history
- Dec 2015OutlineIn report
Revised details submitted pursuant to condition 9 (hard and soft landscaping) of planning permission TM/11/00680/FL (Two storey detached dwelling)
- Documents
- 16 docs on file
- Reference
- 15/01867/RD
What's in Helens Cottage, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Helens Cottage has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£776,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in TN15 8LZ: £650,000 (2024–2016).
Nearby sales in TN15 8LZ
Mill House, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ
Sold Dec 2024
£1,210,000Kelvin, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ
Sold Sept 2024
£430,0002 Church Villas, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ
Sold Mar 2019
£367,500Romney House, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ
Sold Aug 2018
£650,000Dalesfield, Long Mill Lane, Platt, Sevenoaks, TN15 8LZ
Sold Jan 2016
£800,000
Everything we know about Helens Cottage, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Long Mill Lane homes
On epc rating, Helens Cottage stands well clear of the street.
EPC Rating
83 (B)
Street avg 50 (E)
Floor Area
149 m²
Street avg 141 m²
CO₂ Emissions
2.3 t/year
Street avg 7.5 t/year
Similar properties nearby
1 Crouch Cottages, Long Mill Lane, Crouch, Borough Green
TN15 8QB
1 Apple Barn Court, Long Mill Lane, Crouch, Borough Green
TN15 8QF
1 Black Barn Cottages, Crouch Lane, Borough Green
TN15 8LX
1 Bangays Way, Borough Green
TN15 8FS
1 Eaglestone Close, Borough Green
TN15 8EL
1 Claygate Cross Cottages, Winfield Lane, Borough Green
TN15 8PX
1 Crouch Lane, Borough Green
TN15 8LU
1 Church Villas, Long Mill Lane, Platt
TN15 8LZ
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
0.3 km
Flour Mill — bus stop.
Closest school
0.4 km
Platt Church of England Voluntary Aided Primary School. 4 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
47.2dB

Night-time· 23:00 – 07:00
39.5dB