20 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
About 20 The Old Saw Mill
20 The Old Saw Mill is a four-bedroom semi-detached house in Platt, Sevenoaks, Sevenoaks (TN15 8QJ). It has a recorded floor area of 227 m² (around 2443 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (September 2023) shows a C (score 77), near the top of the C band. The recommended improvements would push it to B (score 83).
Across 2004–2024, sale prices on this property compounded at 3.1% per year. On a £-per-square-foot basis, the last sale (£438/sq ft) was about 66.4% above the typical sold price in the postcode. Sold October 2024 for £1,070,000.
Know exactly what you're buying at 20 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
- Bathrooms4
- Dining roomYes
Outside
- Private gardenYes
- GarageDouble
Building
- RefurbishedYes
Energy performance
EPC Rating
Planning history
20 The Old Saw Mill has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
20 The Old Saw Mill valuation sits well clear of the typical sold price in this postcode.
£1,081,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.1% per year over 20 years.
£1,070,000
Growth on file: 3.1% per year over 20 years.
Sales timeline
21 October 2024Most recent
£1,070,000
+87.7%over 20 years24 June 2004
£570,000
Median price across the last 5 sales in TN15 8QJ: £1,350,000 (2024–2020).
Nearby sales in TN15 8QJ
24 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
£1,350,00014 The Old Saw Mill, Long Mill Lane, Platt, Sevenoaks, TN15 8QJ
Sold Oct 2020
£585,000
Everything we know about 20 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
Years Held for 20 The Old Saw Mill lags the street by a wide margin.
Price per m²
£4,714
Street avg £3,543
Floor Area
227 m²
Street avg 288 m²
Habitable Rooms
7 rooms
Street avg 9 rooms
CO₂ Emissions
5.3 t/year
Street avg 7.2 t/year
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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