21b, Beaconsfield Road, London, N11 3AA
About 21b
21b is a semi-detached house in London (N11 3AA). It has a recorded floor area of 13 m² (around 140 sq ft), construction records dating it to 1900-1929 and council tax band B. At 13 m² this is the smallest unit on EPC record across the building (13–116 m²). The building's EPC ratings span E to C across 21 units on file. The latest certificate (September 2016) shows a D (score 56), a step below the typical UK home. When first surveyed in May 2009 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency dropped from Average to Very Poor and lighting dropped from Average to Very Poor. The recommended improvements would push it to C (score 75).
At 13 m² it sits well below the postcode median (57 m² across 58 EPCs), making it one of the more compact homes locally.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Low energy lighting percentage decreased
Windows upgraded, improving insulation
More low energy lighting installed
Changed to a more efficient fuel source
Low energy lighting percentage decreased
Planning history
21b has no planning applications on record.
Notable planning nearby
9applications of note in the surrounding area
We flagged 1 thing worth checking at 21b
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
30-day money-back guarantee
Sales history & valuation
21b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£241,000
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 N11 3AA: £475,000 (2025–2023).
Nearby sales in N11 3AA
Flat 2, 55 Beaconsfield Road, London, N11 3AA
Sold Oct 2025
£475,000Flat 4, 55 Beaconsfield Road, London, N11 3AA
Sold Jul 2024
£240,0009 Beaconsfield Road, Barnet, London, N11 3AA
Sold Feb 2024
£870,00069a, Beaconsfield Road, London, N11 3AA
Sold Dec 2023
£370,00037 Beaconsfield Road, Barnet, London, N11 3AA
Sold Dec 2023
£880,000
Versus other Beaconsfield Road homes
21b is notably below the street on floor area.
EPC Rating
56 (D)
Street avg 66 (D)
Floor Area
13 m²
Street avg 56 m²
CO₂ Emissions
1.8 t/year
Street avg 2.5 t/year
Habitable Rooms
1 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Beaconsfield Road / New Southgate Station — bus stop.
Closest school
0.2 km
St Paul's CofE Primary School N11. 62 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
53.4dB

Night-time· 23:00 – 07:00
44.5dB







