20b, Flat 1, Bisterne Avenue, Waltham Forest, London, E17 3QS
About 20b
20b is a detached house in Waltham Forest, London, London (E17 3QS). It has a recorded floor area of 31 m² (around 334 sq ft) and construction records dating it to 1996-2002. At 31 m² this is the smallest unit on EPC record across 20b (31–98 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (February 2022) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since January 2017. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Good to Average.
At 31 m² it sits well below the postcode median (76 m² across 41 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 20b
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
20b's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation upgraded
More low energy lighting installed
Planning history
20b has no planning applications on record.
Notable planning nearby
9applications of note in the surrounding area
We flagged 2 things worth checking at 20b
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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
20b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£291,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in E17 3QS: £535,000 (2025–2017).
Nearby sales in E17 3QS
14a, Bisterne Avenue, Waltham Forest, London, E17 3QS
Sold Jun 2025
£567,00018 Bisterne Avenue, Waltham Forest, London, E17 3QS
Sold Dec 2022
£605,00016a, Bisterne Avenue, Waltham Forest, London, E17 3QS
Sold Sept 2021
£535,0008 Bisterne Avenue, Waltham Forest, London, E17 3QS
Sold Oct 2016
£1,075,00024a, Bisterne Avenue, Waltham Forest, London, E17 3QS
Sold Jan 2016
£550,000
Everything we know about 20b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Bisterne Avenue homes
Floor Area for 20b lags the street by a wide margin.
EPC Rating
69 (C)
Street avg 73 (C)
Floor Area
31 m²
Street avg 70 m²
CO₂ Emissions
1.4 t/year
Street avg 2.0 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Avon Road / Bisterne Avenue — bus stop.
Closest school
0.5 km
The Woodside Primary Academy. 61 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
54.8dB

Night-time· 23:00 – 07:00
46.0dB