15 Betenson Avenue, Sevenoaks, TN13 3EN
About 15 Betenson Avenue
15 Betenson Avenue is a five-bedroom detached house in Sevenoaks (TN13 3EN). It has a recorded floor area of 187 m² (around 2013 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (October 2017) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). Our model identifies extension potential, subject to local planning policy.
Held since February 2005 — that's 21 years off the open market, well above the local norm. At 187 m² the property is well over the postcode median (123 m² across 7 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £1,142,000 sits 171.9% above the 2005 sale of £420,000. On a £-per-square-foot basis, the last sale (£209/sq ft) was about 40.8% below the postcode norm. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 15 Betenson Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms5
- Bathrooms2
Outside
- Private gardenRear
- GarageYes
Building
- RefurbishedYes
- Extension potentialPossible
Energy performance
15 Betenson Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Council records include a part-single-part-two-storey side and rear extension at 15 Betenson Avenue.
- Nov 2019ExtensionFullIn report
Extension: Two storey · Rear of property
Two storey rear extension along with modification and extension of front entrance with associated internal alterations
- Documents
- 12 docs on file
- Reference
- 19/02778/HOUSE
- Nov 2005FullIn report
Amendment to SE/05/00469, change to rear walls and roof. As amplified by amended drawing received 22.11.05 and plan 934/04 Rev. B.
- Documents
- 4 docs on file
- Reference
- 05/02422/FUL
What's in 15 Betenson Avenue, Sevenoaks, TN13 3EN's planning history?
1 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
15 Betenson Avenue valuation sits well clear of the typical sold price in this postcode.
£1,142,000
Modelled from EPC, postcode comparables.
£420,000
Recorded with HM Land Registry.
Sales timeline
16 February 2005Most recent
£420,000
Median price across the last 5 sales in TN13 3EN: £570,000 (2024–2016).
Nearby sales in TN13 3EN
13 Betenson Avenue, Sevenoaks, TN13 3EN
Sold Nov 2024
£900,00026 Betenson Avenue, Sevenoaks, TN13 3EN
Sold Jul 2024
£570,00011 Betenson Avenue, Sevenoaks, TN13 3EN
Sold Sept 2019
£775,00024 Betenson Avenue, Sevenoaks, TN13 3EN
Sold Aug 2018
£470,0003 Betenson Avenue, Sevenoaks, TN13 3EN
Sold Jul 2016
£460,000
Everything we know about 15 Betenson Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Betenson Avenue homes
On price per m², 15 Betenson Avenue runs well behind the street norm.
Price per m²
£2,246
Street avg £5,364
Floor Area
187 m²
Street avg 117 m²
Habitable Rooms
9 rooms
Street avg 6 rooms
CO₂ Emissions
8.1 t/year
Street avg 4.8 t/year
Similar properties nearby
1 Chestnut Lane
TN13 3AR
1 Charterhouse Drive
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1 Chartway
TN13 3RU
1 Blair Drive
TN13 3JR
1 Bethel Road
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1 Cavendish Avenue
TN13 3HP
1 Bosville Avenue
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1 Amherst Place
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Betenson Avenue — bus stop.
Closest school
0.4 km
Riverhead Infants' School. 10 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
51.5dB

Night-time· 23:00 – 07:00
44.0dB