11a, Basement Flat, Chatham Place, Brighton, BN1 3TP
About 11a
11a is a mid-terrace house in Brighton (BN1 3TP). It has a recorded floor area of 37 m² (around 398 sq ft) and construction records dating it to 1976-1982. The latest certificate (December 2013) shows a D (score 58), a step below the typical UK home. When first surveyed in April 2009 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Average to Good, hot-water efficiency went from Very Poor to Poor and lighting went from Poor to Good. The recommended improvements would push it to C (score 74). Main heating runs on electricity. The latest certificate is from December 2013, so improvements made since then won't be reflected. At 37 m² this is the 2nd smallest of 5 units on EPC record in the building, where floor areas span 36–52 m². The building's EPC ratings span F to C across 5 units on file.
At 37 m² it's 20.4% smaller than the typical home in the postcode (47 m² median across 52 EPCs).
Everything you need to know about 11a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
11a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Dec 2023
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
11a has no planning applications on record.
But the area is active
23 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
11a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£241,000
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 3TP: £350,000 (2025–2022).
Nearby sales in BN1 3TP
Versus other Chatham Place homes
Floor Area for 11a lags the street by a wide margin.
EPC Rating
58 (D)
Street avg 64 (D)
Floor Area
37 m²
Street avg 51 m²
CO₂ Emissions
2.9 t/year
Street avg 2.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 11a
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
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
21/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Seven Dials — bus stop.
Closest school
0.5 km
Brighton Hove and Sussex Sixth Form College. 32 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
54.8dB
Night-time· 23:00 – 07:00
45.3dB