2a, Allenby Road, Biggin Hill, Westerham, TN16 3LH
About 2a
2a is a three-bedroom detached house in Biggin Hill, Westerham, Westerham (TN16 3LH). It has a recorded floor area of 122 m² (around 1313 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (October 2022) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in September 2016 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Good, lighting went from Good to Very Good and main heating went from Average to Good. The recommended improvements would lift it to B (score 83), a 2-band jump.
One planning record on file: an extension approved in 2017. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Across 2017–2023, sale prices on this property compounded at 8.5% per year. On a £-per-square-foot basis, the last sale (£533/sq ft) was about 94.8% above the typical sold price in the postcode. Last sale on file: £700,000 in June 2023.
Know exactly what you're buying at 2a
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
- Bedrooms3
- Bathrooms2
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageYes
- Summer houseYes
Building
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Planning history
- Aug 2017PorchFullIn report
Extension: Single storey
Formation of porch to front elevation and single storey rear and single storey rear/side extension.
Extension- Documents
- 10 docs on file
- Reference
- 17/02874/FULL6
We flagged 1 thing worth checking at 2a
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
2a valuation sits well clear of the typical sold price in this postcode.
£676,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 6 years.
£700,000
Growth on file: 8.5% per year over 6 years.
Sales timeline
25 June 2023Most recent
£700,000
+64.7%over 6 years14 May 2017
£425,000
Median price across the last 5 sales in TN16 3LH: £550,000 (2025–2023).
Nearby sales in TN16 3LH
27 Allenby Road, Biggin Hill, Westerham, TN16 3LH
Sold Oct 2025
£650,00023 Allenby Road, Biggin Hill, Westerham, TN16 3LH
Sold Oct 2025
£450,00018 Allenby Road, Biggin Hill, Westerham, TN16 3LH
Sold Dec 2024
£550,00019 Allenby Road, Biggin Hill, Westerham, TN16 3LH
Sold Jul 2024
£430,0001 Allenby Road, Biggin Hill, Westerham, TN16 3LH
Sold Feb 2023
£750,000
Everything we know about 2a, 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 Allenby Road homes
Years Held for 2a lags the street by a wide margin.
Price per m²
£5,738
Street avg £4,603
Floor Area
122 m²
Street avg 108 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.1 t/year
Street avg 5.0 t/year
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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
Village Green Way — bus stop.
Closest school
0.6 km
Biggin Hill Primary School. 5 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
47.1dB

Night-time· 23:00 – 07:00
39.0dB