1 Maddox Cottages, Long Mill Lane, Platt, Sevenoaks, TN15 8NA
About 1 Maddox Cottages
1 Maddox Cottages is a two-bedroom end-of-terrace house in Platt, Sevenoaks, Sevenoaks (TN15 8NA). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (August 2025) shows a D (score 58), a step below the typical UK home. When first surveyed in November 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Poor to Very Good. The recommended improvements would push it to C (score 75). Other recorded features include notable views.
At 82 m² it sits well below the postcode median (183 m² across 11 EPCs), making it one of the more compact homes locally. Most recent transfer: October 2021 at £470,000. 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. 6 planning records sit against the property, 3 approved, 1 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Across 2010–2021, sale prices on this property compounded at 6.1% per year. On a £-per-square-foot basis, the last sale (£532/sq ft) was about 79.1% above the typical sold price in the postcode.
Know exactly what you're buying at 1 Maddox Cottages
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
- Bedrooms2
- Bathrooms2
- Utility roomYes
- CloakroomYes
- FireplaceYes
Outside
- Private gardenFront and rear
- Notable viewsYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Roof insulation improved
More low energy lighting installed
Heating controls changed
More low energy lighting installed
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Nov 2013ExtensionFullIn report
Extension: Rear of property
Demolition of rear single storey extension and construction of two storey and single storey rear extensions
- Documents
- 17 docs on file
- Reference
- 13/02684/FL
- Feb 2011Tree WorksTreesIn report
T1 - Elder: coppice to re-establish boundary hedge. Current height and spread poses danger to green house. Also covered in ivy. T2 - Laburnum (in rear hedge): diseased and covered in vine. To reduce hedge height and maintain (have a young family and poisonous seeds a concern). T3 - Evergreen: adjacent to T7 (have permission to remove T7 - a giant evergreen). T4 - Cypressus: remove. Damaged by snow and wind. Boughs threatening to come down. T5 - Ornamental Cherry behind home: remove as too close to building and drains. T6 - Ornamental Cherry in front garden: remove too close to building
- Documents
- 5 docs on file
- Reference
- 10/03538/TNCA
What's in 1 Maddox Cottages, Long Mill Lane, Platt, Sevenoaks, TN15 8NA's planning history?
4 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
1 Maddox Cottages has more than doubled in price since the earliest registered sale in 2010.
£507,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 12 years.
£470,000
Growth on file: 6.1% per year over 12 years.
Sales timeline
28 October 2021Most recent
£470,000
+26.2%over 5 years5 February 2016
£372,500
+20.2%over 2 years27 November 2013
£310,000
+31.9%over 3 years5 February 2010
£235,000
Median price across the last 5 sales in TN15 8NA: £1,320,000 (2022–2016).
Nearby sales in TN15 8NA
Dales, Long Mill Lane, Platt, Sevenoaks, TN15 8NA
Sold Sept 2022
£1,320,000Little Platt, Long Mill Lane, Platt, Sevenoaks, TN15 8NA
Sold Aug 2017
£900,000Maddox House, Long Mill Lane, Platt, Sevenoaks, TN15 8NA
Sold May 2017
£815,000Wismer, Long Mill Lane, Platt, Sevenoaks, TN15 8NA
Sold Jan 2017
£1,420,000Lambourne House, Long Mill Lane, Platt, Sevenoaks, TN15 8NA
Sold Jul 2016
£1,500,000
Everything we know about 1 Maddox Cottages, 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
1 Maddox Cottages outperforms the street on price per m² by a wide margin.
Price per m²
£5,732
Street avg £4,020
Floor Area
82 m²
Street avg 207 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
4.1 t/year
Street avg 5.7 t/year
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1 Church Villas, Long Mill Lane, Platt
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1 Brickmakers Meadows, Platt
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1 Crouch 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
0.6 km
Flour Mill — bus stop.
Closest school
0.7 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
45.7dB

Night-time· 23:00 – 07:00
37.5dB