The Birches, Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE
About The Birches
The Birches is a detached house in Knatts Valley, Sevenoaks, Sevenoaks (TN15 6YE). It has a recorded floor area of 139 m² (around 1496 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (August 2020) shows an F (score 34), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 61), a 2-band jump. Main heating runs on lpg.
Today's modelled estimate of £795,000 is 12.6% below the 2022 sale of £910,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£608/sq ft) was about 138.1% above the typical sold price in the postcode. At 139 m² it sits well below the postcode median (214 m² across 24 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Last sale on file: £910,000 in December 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at The Birches
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
Energy performance
The Birches's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- May 2024AmendmentIn report
Confirmation that the demolition of the car port constitutes beginning development in respect of planning application 21/00313/HOUSE.
- Documents
- 6 docs on file
- Reference
- 24/00621/LDCEX
- Mar 2021DemolitionFullIn report
Extension: Single storey
The proposal is for demolition of a car port and conservatory, erection of a single storey extension with roof lantern, conversion of existing garage in to new bedroom and demolition of an existing workshops and stable block and erection of triple garage.
Extension- Documents
- 17 docs on file
- Reference
- 21/00313/HOUSE
What's in The Birches, Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£795,000
Modelled from EPC, postcode comparables.
£910,000
Recorded with HM Land Registry.
Sales timeline
13 December 2022Most recent
£910,000
Median price across the last 5 sales in TN15 6YE: £970,000 (2025–2019).
Nearby sales in TN15 6YE
19 Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE
Sold Sept 2025
£1,150,00014 Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE
Sold Nov 2022
£1,075,000Chellowdene, Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE
Sold Nov 2020
£970,00023a, Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE
Sold May 2020
£400,000The Oaks, Ashen Grove Road, Knatts Valley, Sevenoaks, TN15 6YE
Sold Sept 2019
£850,000
Everything we know about The Birches, 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 Ashen Grove Road homes
Price per m² for The Birches runs comfortably ahead of the street norm.
Price per m²
£6,547
Street avg £2,982
Floor Area
139 m²
Street avg 219 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
7.2 t/year
Street avg 8.0 t/year
Similar properties nearby
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1 Barrowfield Mews, London Road, West Kingsdown
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1 Barnfield Crescent, Kemsing
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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
0.5 km
East Hill Farm Park — bus stop.
Closest school
2.3 km
St. Edmund's Church of England Primary School. 1 school 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
40.4dB

Night-time· 23:00 – 07:00
35.1dB