Green Diamond, Flat 2, Bartholomew Square, Brighton, BN1 1JS
About Green Diamond
Green Diamond is a semi-detached house in Brighton (BN1 1JS). It has a recorded floor area of 41 m² (around 441 sq ft) and council tax band B. At 41 m² this is the 14th smallest of 40 units on EPC record in Green Diamond, where floor areas span 26–185 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (63 versus a best of 87). The latest certificate (February 2016) shows a D (score 63), on the cusp of jumping into the C band. Main heating runs on electricity: electricity, unspecified tariff. The latest certificate is from February 2016, so improvements made since then won't be reflected.
At 41 m² it's 16.3% smaller than the typical home in the postcode (49 m² median across 39 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
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Energy performance
Green Diamond sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 15 Feb 2026
EPC Rating
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Planning history
Green Diamond has no planning applications on record.
But the area is active
27 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Green Diamond has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£169,000
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 4 sales in BN1 1JS: £300,000 (2022–2016).
Versus other Bartholomew Square homes
On epc rating, Green Diamond runs well behind the street norm.
EPC Rating
63 (D)
Street avg 76 (C)
Floor Area
41 m²
Street avg 51 m²
CO₂ Emissions
2.1 t/year
Street avg 0.5 t/year
Everything you need to know about Green Diamond
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
21/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pool Valley Coach Station — bus station.
Closest school
0.2 km
Middle Street Primary School. 22 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
58.5dB
Night-time· 23:00 – 07:00
49.0dB