Flat 11, 15 Collison Avenue, Barnet, EN5 3BQ
About Flat 11
Flat 11 is a one-bedroom mid-terrace house in Barnet (EN5 3BQ). It has a recorded floor area of 58 m² (around 624 sq ft). The latest certificate (April 2018) returns a high B (score 86), putting the home a stone's throw from an A rating. At 58 m² this is the 5th smallest of 24 units on EPC record in the building, where floor areas span 54–119 m².
At 58 m² it's 20.5% smaller than the typical home in the postcode (73 m² median across 77 EPCs). Sold August 2022 for £372,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Flat 11
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
- Bedrooms1
- Bathrooms1
- Open-plan layoutYes
Outside
- ParkingYes
Building
- RefurbishedYes
Energy performance
Flat 11's carbon output is low for the local stock.
EPC Rating
Planning history
Flat 11 has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£343,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.2% per year over 4 years.
£372,500
Growth on file: -0.2% per year over 4 years.
Sales timeline
16 August 2022Most recent
£372,500
-0.7%over 4 years29 May 2018
£375,000
Median price across the last 5 sales in EN5 3BQ: £445,000 (2025–2025).
Nearby sales in EN5 3BQ
Flat 2, 15 Collison Avenue, Barnet, EN5 3BQ
Sold Oct 2025
£320,000Flat 11, 17 Collison Avenue, Barnet, EN5 3BQ
Sold Sept 2025
£442,500Flat 12, 17 Collison Avenue, Barnet, EN5 3BQ
Sold May 2025
£445,000Flat 5, 17 Collison Avenue, Barnet, EN5 3BQ
Sold Mar 2025
£462,5003 Collison Avenue, Barnet, EN5 3BQ
Sold Feb 2025
£930,000
Everything we know about Flat 11, 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 Collison Avenue homes
Flat 11 is notably below the street on floor area.
Price per m²
£6,422
Street avg £5,886
Floor Area
58 m²
Street avg 76 m²
CO₂ Emissions
0.7 t/year
Street avg 0.8 t/year
Years Held
4 years
Street avg 6 years
Similar properties nearby
Flat 12, 11 Barnet Road
EN5 3HD
Flat 12, 17 Collison Avenue
EN5 3BQ
Flat 12, 15 Collison Avenue
EN5 3BQ
Flat 10, 17 Collison Avenue
EN5 3BQ
Flat 11, 17 Collison Avenue
EN5 3BQ
Flat 1, 19 Collison Avenue
EN5 3BQ
Flat 1, 11 Barnet Road
EN5 3HD
Flat 1, 13 Collison Avenue
EN5 3BQ
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Barnet Hospital A&E Department — bus stop.
Closest school
0.6 km
Whitings Hill Primary School. 15 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
50.2dB

Night-time· 23:00 – 07:00
40.7dB