12 High Street, Seal, Sevenoaks, TN15 0AJ
About 12 High Street
12 High Street is a four-bedroom property in Seal, Sevenoaks, Sevenoaks (TN15 0AJ). It has a recorded floor area of 191 m² (around 2056 sq ft). It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Period features are noted in the property record. The latest certificate (March 2016) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 73). The latest certificate is from March 2016, so improvements made since then won't be reflected.
At 191 m² the property is well over the postcode median (108 m² across 16 EPCs), placing it in the larger end of the local stock. 20 planning records sit against the property, 16 approved, 4 refused. Past consents include subdivision, meaningful when judging how the property has evolved. 10 years since the last transfer (April 2016). Today's modelled estimate of £909,000 is 45.4% above the 2016 sale price.
Know exactly what you're buying at 12 High Street
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
- Bedrooms4
- EnsuiteYes
Outside
- Private gardenSouth-facing
- ParkingAllocated
Building
- Listed buildingYes
- Central heatingYes
- Period featuresYes
- RefurbishedYes
Energy performance
12 High Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 31 Mar 2026
EPC Rating
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Jun 2015ConditionsIn report
Details pursuant to condition 7 (surfacing) of SE/11/01735/FUL.
- Documents
- 3 docs on file
- Reference
- 15/01532/DETAIL
- Apr 2015MixedConditionsIn report
Variation of condition 7 (surfacing within the root protection areas) of SE/11/01735/FUL to conversion of existing public house into one 4 bedroom and one 3 bedroom dwelling. The conversion of the detached summer house into a two bedroom dwelling, construction of two new dwellings to incorporate one 4 bedroom, and one 3 bedroom units, together with associated parking facilities - with amendment to surface finish of the car park.
- Documents
- 3 docs on file
- Reference
- 15/00449/CONVAR
We flagged 1 thing worth checking at 12 High Street
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
12 High Street valuation sits well clear of the typical sold price in this postcode.
£909,000
Modelled from EPC, postcode comparables.
£625,000
Recorded with HM Land Registry.
Sales timeline
7 April 2016Most recent
£625,000
Median price across the last 5 sales in TN15 0AJ: £560,000 (2025–2021).
Nearby sales in TN15 0AJ
22 High Street, Seal, Sevenoaks, TN15 0AJ
Sold Sept 2025
£255,000Abbots House, High Street, Seal, Sevenoaks, TN15 0AJ
Sold Jun 2023
£1,460,00014 High Street, Seal, Sevenoaks, TN15 0AJ
Sold Jan 2023
£560,00010 High Street, Seal, Sevenoaks, TN15 0AJ
Sold Mar 2021
£700,0008 High Street, Seal, Sevenoaks, TN15 0AJ
Sold Mar 2021
£388,000
Everything we know about 12 High Street, 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 High Street homes
Years Held for 12 High Street runs comfortably ahead of the street norm.
Price per m²
£3,272
Street avg £4,675
Floor Area
191 m²
Street avg 124 m²
CO₂ Emissions
7.3 t/year
Street avg 4.8 t/year
Years Held
10 years
Street avg 5 years
Similar properties nearby
1 Childsbridge Way, Seal
TN15 0DG
1 Crown Point Cottage, Sevenoaks Road, Seal Chart
TN15 0HB
1 Copse Bank, Seal
TN15 0DE
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 Childsbridge Farm Place, Seal
TN15 0FR
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
0.0 km
The Crown — bus stop.
Closest school
0.5 km
Seal Church of England Primary School. 7 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
48.0dB

Night-time· 23:00 – 07:00
40.6dB