3a, Castle Square, Brighton, BN1 1EG
About 3a
3a is a mid-terrace house in Brighton (BN1 1EG). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to before 1900 and council tax band A. At 65 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 26–70 m². The building's EPC ratings span E to D, with this unit at the top. On EPC score it ranks first in the building (67 versus a worst of 39). The latest certificate (March 2020) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2009); the latest reading is one band lower. Between certificates, lighting went from Average to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 74).
At 65 m² the property is well over the postcode median (27 m² across 3 EPCs), placing it in the larger end of the local stock.
Everything you need to know about 3a
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
Hot water efficiency decreased
More low energy lighting installed
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
3a 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
3a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£230,000
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 5 sales in BN1 1EG: £270,000 (2024–2000).
Versus other Castle Square homes
EPC Rating for 3a runs comfortably ahead of the street norm.
EPC Rating
67 (D)
Street avg 50 (E)
Floor Area
65 m²
Street avg 41 m²
CO₂ Emissions
2.7 t/year
Street avg 4.1 t/year
Habitable Rooms
3 rooms
Street avg 2 rooms
Everything you need to know about 3a
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
0.0 km
North Street — bus stop.
Closest school
0.3 km
Middle Street Primary School. 24 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
57.8dB
Night-time· 23:00 – 07:00
48.0dB