12 Platt Mill Close, Platt, Sevenoaks, TN15 8LR
About 12 Platt Mill Close
12 Platt Mill Close is a four-bedroom mid-terrace house in Platt, Sevenoaks, Sevenoaks (TN15 8LR). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (November 2016) shows a C (score 75), near the top of the C band. The recommended improvements would push it to B (score 88). Other recorded features include notable views and a conservatory. The home occupies a cul-de-sac position.
At 117 m² the property is well over the postcode median (80 m² across 10 EPCs), placing it in the larger end of the local stock. Last sale on file: £550,000 in September 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Across 2002–2021, sale prices on this property compounded at 4.3% per year. On a £-per-square-foot basis, the last sale (£437/sq ft) was about 57.6% above the typical sold price in the postcode.
Know exactly what you're buying at 12 Platt Mill Close
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
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
- StudyYes
- ConservatoryYes
Outside
- Private gardenSouth-west-facing
- GarageYes
- Notable viewsYes
- Cul-de-sacYes
Energy performance
EPC Rating
Planning history
12 Platt Mill Close has 2 separate extension applications on the council record.
- Nov 2005ConservatoryFullIn report
Extension: Rear of property
Rear conservatory
Extension- Documents
- 9 docs on file
- Reference
- 05/03041/FL
- Apr 2002ConservatoryFullIn report
Extension: Rear of property
Conservatory to rear
- Council
- Team 2
Extension- Reference
- 02/00482/FL
What's in 12 Platt Mill Close, Platt, Sevenoaks, TN15 8LR's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Latest sale on 12 Platt Mill Close was the highest on Land Registry record across the postcode.
£595,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.3% per year over 20 years.
£550,000
Growth on file: 4.3% per year over 20 years.
Sales timeline
22 September 2021Most recent
£550,000
+17.0%over 4 years9 April 2017
£470,000
+25.3%over 12 years3 December 2004
£375,000
+54.6%over 2 years15 March 2002
£242,500
Median price across the last 5 sales in TN15 8LR: £344,000 (2025–2014).
Nearby sales in TN15 8LR
15 Platt Mill Close, Platt, Sevenoaks, TN15 8LR
Sold Jul 2025
£525,00014 Platt Mill Close, Platt, Sevenoaks, TN15 8LR
Sold Aug 2021
£461,5007 Platt Mill Close, Platt, Sevenoaks, TN15 8LR
Sold Aug 2020
£327,5008 Platt Mill Close, Platt, Sevenoaks, TN15 8LR
Sold Apr 2015
£344,00010 Platt Mill Close, Platt, Sevenoaks, TN15 8LR
Sold Mar 2014
£249,950
Everything we know about 12 Platt Mill Close, 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 Platt Mill Close homes
Floor Area for 12 Platt Mill Close runs comfortably ahead of the street norm.
Price per m²
£4,701
Street avg £3,716
Floor Area
117 m²
Street avg 86 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 2.9 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Flour Mill — bus stop.
Closest school
0.5 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
47.5dB

Night-time· 23:00 – 07:00
40.1dB