Flat 21, 4 Collins Street, Oxford, OX4 1LG
About Flat 21
Flat 21 is a property in Oxford (OX4 1LG). It has a recorded floor area of 26 m² (around 280 sq ft), construction records dating it to 2012-2021 and council tax band A. At 26 m² this is the 6th smallest of 57 units on EPC record in the building, where floor areas span 25–178 m². The building's EPC ratings span D to B across 57 units on file. The latest certificate (December 2025) shows a C (score 74). This certificate was lodged in the last six months, so the rating reflects current condition.
At 26 m² it's 22.4% smaller than the typical home in the postcode (34 m² median across 56 EPCs).
Know exactly what you're buying at Flat 21
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
Flat 21's carbon output is low for the local stock.
EPC Rating
Planning history
Flat 21 has no planning applications on record.
Notable planning nearby
63applications of note in the surrounding area
We flagged 2 things worth checking at Flat 21
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
Flat 21 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£176,000
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.
Everything we know about Flat 21, 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 Collins Street homes
Flat 21 outperforms the street on co₂ emissions by a wide margin.
EPC Rating
74 (C)
Street avg 74 (C)
Floor Area
26 m²
Street avg 89 m²
CO₂ Emissions
0.8 t/year
Street avg 1.9 t/year
Habitable Rooms
1 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Union Street — bus stop.
Closest school
0.1 km
East Oxford Primary School. 28 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
51.2dB

Night-time· 23:00 – 07:00
41.5dB