Chart Farm, The Oast House, Seal Chart, Sevenoaks, TN15 0ES
About Chart Farm
Chart Farm is a detached house in Seal Chart, Sevenoaks, Sevenoaks (TN15 0ES). It has a recorded floor area of 338 m² (around 3638 sq ft) and construction records dating it to 1967-1975. The latest certificate (June 2023) shows an F (score 35), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 72), a 3-band jump. Main heating runs on oil.
It hasn't traded since April 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 338 m² the property is well over the postcode median (146 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). Today's modelled estimate of £2,192,000 sits 63.6% above the 2007 sale of £1,340,000. On a £-per-square-foot basis, the last sale (£368/sq ft) was about 63.6% above the typical sold price in the postcode. 10 planning records sit against the property, 5 approved, 3 refused. Past consents include solar panel installation, meaningful when judging how the property has evolved.
Know exactly what you're buying at Chart Farm
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
Chart Farm's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Chart Farm has been through 5 approved planning applications — a well-evolved property.
- Jul 2023Solar PanelsAmendmentIn report
Prior notification for installation, alteration or replacement of the solar photovoltaics (PV) equipment on the roof on the non-domestic buildings. This application is made under Class J of The Town and Country Planning (General Permitted Development) (England) Order 2015.
- Documents
- 7 docs on file
- Reference
- 23/01492/PAC
- Apr 2019RenovationOtherIn report
Re-align and straighten the vehicular access track.
- Documents
- 5 docs on file
- Reference
- 19/00738/AGRNOT
We flagged 1 thing worth checking at Chart Farm
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
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£2,192,000
Modelled from EPC, postcode comparables.
£1,340,000
Recorded with HM Land Registry.
Sales timeline
24 April 2007Most recent
£1,340,000
Median price across the last 5 sales in TN15 0ES: £875,000 (2023–2019).
Nearby sales in TN15 0ES
Broomsleigh Park, The Coach House, Seal Chart, Sevenoaks, TN15 0ES
Sold Dec 2023
£770,000Chart Lodge, Flat 2, Seal Chart, Sevenoaks, TN15 0ES
Sold Aug 2022
£715,000Broomsleigh Park, Seal Chart, Sevenoaks, TN15 0ES
Sold Apr 2021
£6,000,000Fiddlers Hill, Seal Chart, Sevenoaks, TN15 0ES
Sold Aug 2020
£2,175,000Highfield, Seal Chart, Sevenoaks, TN15 0ES
Sold Oct 2019
£875,000
Everything we know about Chart Farm, 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 the street
Floor Area for Chart Farm runs comfortably ahead of the street norm.
Price per m²
£3,964
Street avg £3,578
Floor Area
338 m²
Street avg 167 m²
Habitable Rooms
9 rooms
Street avg 6 rooms
CO₂ Emissions
24.0 t/year
Street avg 8.6 t/year
Similar properties nearby
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1 Copse Bank, Seal
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1 Childsbridge Way, Seal
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1 Brook Cottages, Brook Lane, Plaxtol
TN15 0RF
1 Crown Point Cottage, Sevenoaks Road, Seal Chart
TN15 0HB
1 Broadhoath, Stone Street, Seal
TN15 0LX
1 Five Went Ways Cottages, Stone Street, Seal
TN15 0LR
1 Forge View, Carters Hill, Underriver
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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
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.6 km
Seal Chart Crossroads — bus stop.
Closest school
1.6 km
Ightham 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
47.0dB

Night-time· 23:00 – 07:00
39.6dB