Flat 1, 15 Collison Avenue, Barnet, EN5 3BQ
About Flat 1
Flat 1 is a mid-terrace house in Barnet (EN5 3BQ). It has a recorded floor area of 81 m² (around 872 sq ft). The latest certificate (April 2018) returns a high B (score 85), putting the home a stone's throw from an A rating. At 81 m² this is the 15th smallest of 24 units on EPC record in the building, where floor areas span 54–119 m².
Last sold in April 2018, so it's been off the market for around 8 years.
Know exactly what you're buying at Flat 1
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
Flat 1's carbon output is low for the local stock.
EPC Rating
Planning history
Flat 1 has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
£490,000
Modelled from EPC, postcode comparables.
£510,000
Recorded with HM Land Registry.
Sales timeline
29 April 2018Most recent
£510,000
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 1, 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 1 is notably below the street on co₂ emissions.
Price per m²
£6,296
Street avg £5,888
Floor Area
81 m²
Street avg 76 m²
CO₂ Emissions
1.2 t/year
Street avg 0.8 t/year
Years Held
8 years
Street avg 6 years
Similar properties nearby
Flat 1, 13 Collison Avenue
EN5 3BQ
Ambrosia Court, Flat 3, 2 Amethyst Close
EN5 3BF
Broadleaf Court, Flat 3, 1 Amethyst Close
EN5 3BF
Flat 13, 11 Barnet Road
EN5 3HD
Flat 1, 11 Barnet Road
EN5 3HD
Flat 11, 17 Collison Avenue
EN5 3BQ
Flat 10, 17 Collison Avenue
EN5 3BQ
Flat 11, 11 Barnet Road
EN5 3HD
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