21a, Dukes Lane, Brighton, BN1 1BG
About 21a
21a is a mid-terrace house in Brighton (BN1 1BG). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (May 2023) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2013. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Very Poor to Poor and window efficiency went from Very Poor to Poor. The recommended improvements would push it to C (score 74).
Held since December 2000 — that's 25 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £330,000 sits 149.1% above the 2000 sale of £132,500. On a £-per-square-foot basis, the last sale (£178/sq ft) was about 24.8% below the postcode norm.
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Wall insulation upgraded
Roof insulation improved
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Planning history
21a 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
21a valuation sits well clear of the typical sold price in this postcode.
£330,000
Modelled from EPC, postcode comparables.
£132,500
Recorded with HM Land Registry.
Sales timeline
18 December 2000Most recent
£132,500
Median price across the last 5 sales in BN1 1BG: £350,000 (2024–2014).
Versus other Dukes Lane homes
EPC Rating for 21a runs comfortably ahead of the street norm.
Price per m²
£1,920
Street avg £3,323
Floor Area
69 m²
Street avg 67 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.7 t/year
Street avg 3.3 t/year
Everything you need to know about 21a
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
Similar properties nearby
The neighbourhood at a glance
Crime
21/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
North Street — bus stop.
Closest school
0.1 km
Middle Street Primary School. 25 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
58.2dB
Night-time· 23:00 – 07:00
48.5dB