26 High Street, Seal, Sevenoaks, TN15 0AP
About 26 High Street
26 High Street is a semi-detached house in Seal, Sevenoaks, Sevenoaks (TN15 0AP). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1900-1929 and council tax band C. At 73 m² this is the 6th smallest of 12 units on EPC record in the building, where floor areas span 43–96 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2019) shows a C (score 70). When first surveyed in June 2018 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while window efficiency dropped from Good to Very Poor.
Untraded for 23 years, with the last transfer in June 2003. Today's modelled estimate of £256,000 sits 76.6% above the 2003 sale of £145,000. On a £-per-square-foot basis, the last sale (£185/sq ft) was about 31.1% below the postcode norm. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). One historical planning record sits against the property in 2015.
Know exactly what you're buying at 26 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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Wall insulation improved
More low energy lighting installed
Planning history
- Jun 2015HeritageIn report
Removal of bath and installation of accessible shower; Installation of wheelchair lift to front entrance; Installation of raised floor deck in bedroom; Provision of service cupboard in timber clad external wall; Provision of drainage channel to front entrance; Reversal of entrance door swing to open outwards.
- Documents
- 11 docs on file
- Reference
- 15/00256/LBCALT
We flagged 1 thing worth checking at 26 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
26 High Street valuation sits well clear of the typical sold price in this postcode.
£256,000
Modelled from EPC, postcode comparables.
£145,000
Recorded with HM Land Registry.
Sales timeline
26 June 2003Most recent
£145,000
Median price across the last 5 sales in TN15 0AP: £228,000 (2025–2022).
Nearby sales in TN15 0AP
26b, High Street, Seal, Sevenoaks, TN15 0AP
Sold Oct 2025
£239,97526a, High Street, Seal, Sevenoaks, TN15 0AP
Sold Jun 2025
£240,00034 High Street, Seal, Sevenoaks, TN15 0AP
Sold Feb 2024
£200,00032 High Street, Seal, Sevenoaks, TN15 0AP
Sold Oct 2022
£166,00044 High Street, Seal, Sevenoaks, TN15 0AP
Sold Feb 2016
£245,000
Everything we know about 26 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
26 High Street is notably below the street on price per m².
Price per m²
£1,986
Street avg £3,330
Floor Area
73 m²
Street avg 70 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
2.8 t/year
Street avg 3.1 t/year
Similar properties nearby
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1 Church Terrace, Church Road, Seal
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1 Bentleys Meadow, Seal
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1 Council Cottage, Underriver
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1 Dux Hill Cottages, Dux Hill, Plaxtol
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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
0.2 km
The Crown — bus stop.
Closest school
0.6 km
Seal Church of England Primary School. 8 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
48.3dB

Night-time· 23:00 – 07:00
40.8dB