Bretaneby, Flat 5, High Street, Seal, Sevenoaks, TN15 0AJ
About Bretaneby
Bretaneby is a one-bedroom mid-terrace house in Seal, Sevenoaks, Sevenoaks (TN15 0AJ). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to before 1900 and council tax band C. At 59 m² this is the smallest unit on EPC record across Bretaneby (59–129 m²). On EPC score it ranks last in the building (57 versus a best of 63). The latest certificate (March 2013) shows a D (score 57), a step below the typical UK home. The latest certificate is from March 2013, so improvements made since then won't be reflected.
At 59 m² it sits well below the postcode median (114 m² across 16 EPCs), making it one of the more compact homes locally. 13 planning records sit against the property, 10 approved, 0 refused. Past consents include an extension, a conservatory and new windows, meaningful when judging how the property has evolved. Across 2005–2015, sale prices on this property compounded at 10.4% per year. On a £-per-square-foot basis, the last sale (£496/sq ft) was about 75.2% above the typical sold price in the postcode. Last sold in September 2015, so it's been off the market for around 11 years.
Know exactly what you're buying at Bretaneby
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
- Bedrooms1
Building
- Central heatingYes
Energy performance
Bretaneby's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Mar 2023
EPC Rating
Planning history
Multiple extension applications run across more than a decade of planning history at Bretaneby.
- Mar 2022ConservatoryHeritageIn report
Extension: Rear of property
Erection of a timber framed conservatory to rear of property, with flat roof and roof lantern. Existing patio to be removed and replaced.
Extension- Documents
- 16 docs on file
- Reference
- 22/00274/LBCALT
- Jan 2022AmendmentIn report
Amendment to 21/00291/FUL.
- Documents
- 5 docs on file
- Reference
- 21/03816/MMA
We flagged 1 thing worth checking at Bretaneby
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
Bretaneby has more than doubled in price since the earliest registered sale in 2005.
£334,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.4% per year over 10 years.
£315,000
Growth on file: 10.4% per year over 10 years.
Sales timeline
15 September 2015Most recent
£315,000
+28.6%over 8 years13 March 2007
£245,000
+104.2%over 1 year14 December 2005
£120,000
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 Bretaneby, 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
EPC Rating
57 (D)
Street avg 62 (D)
Floor Area
59 m²
Street avg 70 m²
CO₂ Emissions
3.3 t/year
Street avg 3.8 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
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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