Flat 3, 33 Duke Street, Brighton, BN1 1AG
About Flat 3
Flat 3 is an end-of-terrace house in Brighton (BN1 1AG). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1900-1929 and council tax band A. At 45 m² this is the largest unit on EPC record across the building (42–45 m²). The building's EPC ratings span E to D, with this unit at the bottom. The latest certificate (November 2020) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in September 2015 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Very Good, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Poor. The recommended improvements would push it to D (score 68). Main heating runs on electricity.
Across 2019–2020, sale prices on this property compounded at 26.2% per year. Today's modelled estimate of £200,000 is 60.4% below the 2020 sale of £505,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. At 45 m² it sits well below the postcode median (65 m² across 10 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs). Last sale on file: £505,000 in July 2020.
Everything you need to know about Flat 3
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Certificate validity
Valid until 26 November 2030
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
More low energy lighting installed
Upgraded to gas central heating
Hot water system upgraded
Single glazing replaced with double or better glazing
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 3 has no planning applications on record.
But the area is active
25 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat 3 changed hands twice within eighteen months — unusual for the area.
£200,000
Modelled from EPC, postcode comparables and a sale-price growth of 26.2% per year over 1 year.
£505,000
Growth on file: 26.2% per year over 1 year.
Sales timeline
2 July 2020Most recent
£505,000
+26.3%over 11 months4 August 2019
£400,000
Median price across the last 2 sales in BN1 1AG: £975,000 (2021–2016).
Nearby sales in BN1 1AG
Versus other Duke Street homes
Flat 3 is notably below the street on epc rating.
EPC Rating
48 (E)
Street avg 57 (D)
Floor Area
45 m²
Street avg 60 m²
CO₂ Emissions
3.6 t/year
Street avg 3.8 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Everything you need to know about Flat 3
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £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
1110/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Clock Tower — bus stop.
Closest school
0.2 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
58.0dB

Night-time· 23:00 – 07:00
48.2dB






