21 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
About 21 The Old Saw Mill
21 The Old Saw Mill is a four-bedroom detached house in Platt, Sevenoaks, Sevenoaks (TN15 8QJ). It has a recorded floor area of 224 m² (around 2407 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (January 2009) shows a C (score 73). The latest certificate is from January 2009, so improvements made since then won't be reflected.
Across 2003–2012, sale prices on this property compounded at 0.7% per year. Today's modelled estimate of £927,000 sits 64.1% above the 2012 sale of £565,000. On the market in March 2012 and unlisted since — roughly 14 years.
Know exactly what you're buying at 21 The Old Saw Mill
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
What this property has
Inside
- Bedrooms4
Energy performance
21 The Old Saw Mill's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Jan 2019
EPC Rating
Planning history
21 The Old Saw Mill has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
21 The Old Saw Mill saw 3 transfers in just over a decade — high turnover for the postcode.
£927,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.7% per year over 8 years.
£565,000
Growth on file: 0.7% per year over 8 years.
Sales timeline
16 March 2012Most recent
£565,000
25 June 2009
£562,500
+5.1%over 5 years19 December 2003
£535,000
Median price across the last 5 sales in TN15 8QJ: £1,350,000 (2024–2021).
Nearby sales in TN15 8QJ
20 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
Sold Oct 2024
£1,070,00024 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
Sold Apr 2024
£1,350,00023 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
Sold Sept 2023
£1,400,00011 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
Sold Dec 2021
£540,0009 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
Sold Oct 2021
£1,350,000
Everything we know about 21 The Old Saw Mill, 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 The Old Saw Mill homes
Price per m² for 21 The Old Saw Mill lags the street by a wide margin.
Price per m²
£2,527
Street avg £3,742
Floor Area
224 m²
Street avg 288 m²
Habitable Rooms
8 rooms
Street avg 9 rooms
CO₂ Emissions
5.3 t/year
Street avg 7.2 t/year
Similar properties nearby
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1 Apple Barn Court, Long Mill Lane, Crouch, Borough Green
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1 Crouch Cottages, Long Mill Lane, Crouch, Borough Green
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1 Crouch Lane, Borough Green
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1 Basted Mill, Basted Lane, Borough Green
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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
1.4 km
Flour Mill — bus stop.
Closest school
1.5 km
Platt Church of England Voluntary Aided Primary School. 3 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
41.5dB

Night-time· 23:00 – 07:00
35.3dB