Aragon House, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
About Aragon House
Aragon House is a five-bedroom detached house in Seal, Sevenoaks, Sevenoaks (TN15 0AB). It has a recorded floor area of 286 m² (around 3078 sq ft), construction records dating it to 2003-2006 and council tax band H. The latest certificate (April 2024) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since October 2010. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 84). Other recorded features include attached land beyond the plot. Period features are noted in the property record. The home occupies a cul-de-sac position.
It hasn't traded since June 2008, a hold of 18 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. Today's modelled estimate of £1,618,000 sits 54.1% above the 2008 sale of £1,050,000. At 286 m² it's 23% larger than the typical home in the postcode (233 m² median across 4 EPCs). 3 planning records sit against the property, 0 approved, 2 refused.
Know exactly what you're buying at Aragon House
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
What this property has
Inside
- Bedrooms5
- Bathrooms4
Outside
- Private gardenYes
- GarageDetached
- LandYes
- Cul-de-sacYes
Building
- Period featuresYes
Energy performance
Aragon House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
Planning history at Aragon House is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
- Mar 2025Tree WorksTreesIn report
Various works to trees
- Documents
- 3 docs on file
- Reference
- 25/00142/WTPO
- Nov 2017Tree WorksTreesIn report
Works to various trees.
- Documents
- 3 docs on file
- Reference
- 17/03557/WTPO
We flagged 1 thing worth checking at Aragon House
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.
£1,618,000
Modelled from EPC, postcode comparables.
£1,050,000
Recorded with HM Land Registry.
Sales timeline
11 June 2008Most recent
£1,050,000
Median price across the last 5 sales in TN15 0AB: £1,305,000 (2022–2008).
Nearby sales in TN15 0AB
Peal Chase, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Apr 2022
£1,305,000The Chestnuts, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Nov 2021
£1,620,000The Mulbury, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Nov 2018
£972,500Great Oaks, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Mar 2010
£2,500,000Ash Platt, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Feb 2008
£1,150,000
Everything we know about Aragon House, 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 other Ash Platt Road homes
Aragon House outperforms the street on years held by a wide margin.
Price per m²
£3,671
Street avg £4,916
Floor Area
286 m²
Street avg 242 m²
Habitable Rooms
10 rooms
Street avg 10 rooms
CO₂ Emissions
6.3 t/year
Street avg 6.4 t/year
Similar properties nearby
1 Copse Bank, Seal
TN15 0DE
1 Childsbridge Way, Seal
TN15 0DG
1 Crown Point Cottage, Sevenoaks Road, Seal Chart
TN15 0HB
1 Church Road, Seal
TN15 0AU
1 Brook Cottages, Brook Lane, Plaxtol
TN15 0RF
1 Broadhoath, Stone Street, Seal
TN15 0LX
1 Forge View, Carters Hill, Underriver
TN15 0RY
1 Blackhall Place, The Oast, Blackhall Lane
TN15 0HT
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
0.3 km
Dorton House — bus stop.
Closest school
0.3 km
Seal Church of England Primary School. 9 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
47.1dB

Night-time· 23:00 – 07:00
40.5dB