The Mulbury, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
About The Mulbury
The Mulbury is a five-bedroom detached house in Seal, Sevenoaks, Sevenoaks (TN15 0AB). It has a recorded floor area of 320 m² (around 3444 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (February 2026) shows a C (score 72). When first surveyed in March 2009 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Good. This certificate was lodged in the last six months, so the rating reflects current condition.
At 320 m² the property is well over the postcode median (233 m² across 4 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £1,586,000 sits 63.1% above the 2018 sale of £972,500. On a £-per-square-foot basis, the last sale (£282/sq ft) was about 30.1% below the postcode norm. 4 planning records sit against the property, 2 approved, 2 refused. Past consents include a loft conversion and a garage conversion, meaningful when judging how the property has evolved. Most recent transfer: November 2018 at £972,500.
Know exactly what you're buying at The Mulbury
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
- Bathrooms3
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
- StudyYes
Energy performance
The Mulbury'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 system changed
High performance glazing installed
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Hot water system upgraded
Heating controls upgraded for better temperature management
Hot water system upgraded
Planning history
A a loft conversion application was refused at The Mulbury in 2023.
- Oct 2023Loft ConversionFullIn report
Loft conversion and dormer extension.
- Documents
- 11 docs on file
- Reference
- 23/02324/HOUSE
- Jul 2023Loft ConversionOutlineIn report
Construction of attic conversion.
- Documents
- 6 docs on file
- Reference
- 23/01472/LDCPR
We flagged 1 thing worth checking at The Mulbury
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 Mulbury valuation sits well clear of the typical sold price in this postcode.
£1,586,000
Modelled from EPC, postcode comparables.
£972,500
Recorded with HM Land Registry.
Sales timeline
7 November 2018Most recent
£972,500
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
£1,620,000Great Oaks, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Mar 2010
£2,500,000Aragon House, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Jun 2008
£1,050,000Ash Platt, Ash Platt Road, Seal, Sevenoaks, TN15 0AB
Sold Feb 2008
£1,150,000
Everything we know about The Mulbury, 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
The Mulbury is notably below the street on price per m².
Price per m²
£3,039
Street avg £5,074
Floor Area
320 m²
Street avg 234 m²
Habitable Rooms
10 rooms
Street avg 10 rooms
CO₂ Emissions
7.4 t/year
Street avg 6.1 t/year
Similar properties nearby
1 Copse Bank, Seal
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1 Childsbridge Way, Seal
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1 Crown Point Cottage, Sevenoaks Road, Seal Chart
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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