12a, High Street, Seal, Sevenoaks, TN15 0AJ
About 12a
12a is a property in Seal, Sevenoaks, Sevenoaks (TN15 0AJ). It has a recorded floor area of 110 m² (around 1184 sq ft). The latest certificate (March 2016) returns a B (score 83), comfortably above the UK average. The recommended improvements would push it to A (score 93). The latest certificate is from March 2016, so improvements made since then won't be reflected.
On energy efficiency it sits in the top 10% of properties in this postcode. One planning record on file: tree works approved in 2026. Past consents include tree works, meaningful when judging how the property has evolved. Today's modelled estimate of £559,000 is 15.3% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£410/sq ft) was about 44.7% above the typical sold price in the postcode. On the market in December 2016 and unlisted since — roughly 9 years.
Know exactly what you're buying at 12a
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
Energy performance
12a ranks among the most efficient homes in the postcode for energy use.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 10 Mar 2026
EPC Rating
Planning history
- Feb 2026Tree WorksTreesIn report
G1 Sycamores x 7 Stems - Crown reduce heights by 2-3m, sides to balance. Remove dead ivy and to reduce the mess dropped on cars.
- Documents
- 3 docs on file
- Reference
- 26/00084/WTPO
We flagged 1 thing worth checking at 12a
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
12a valuation sits well clear of the typical sold price in this postcode.
£559,000
Modelled from EPC, postcode comparables.
£485,000
Recorded with HM Land Registry.
Sales timeline
8 December 2016Most recent
£485,000
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 12a, 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
12a outperforms the street on epc rating by a wide margin.
Price per m²
£4,409
Street avg £4,548
Floor Area
110 m²
Street avg 132 m²
CO₂ Emissions
1.8 t/year
Street avg 5.4 t/year
Years Held
9 years
Street avg 6 years
Similar properties nearby
1 Back Lane, Godden Green
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1 Childsbridge Farm Place, Seal
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1 Forge View, Carters Hill, Underriver
TN15 0RY
1 Five Went Ways Cottages, Stone Street, Seal
TN15 0LR
1 Cherry Tree Cottage, Godden Green
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1 Church Road, Seal
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1 Bow Petts Cottages, Back Lane, Godden 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
0.0 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