Flat 1, 11 Denmark Terrace, Brighton, BN1 3AN
About Flat 1
Flat 1 is a mid-terrace house in Brighton (BN1 3AN). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to before 1900 and council tax band A. At 35 m² this is the 7th smallest of 12 units on EPC record in the building, where floor areas span 25–37 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (March 2020) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since September 2009. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while hot-water efficiency dropped from Good to Average and main heating dropped from Good to Average. The recommended improvements would lift it to B (score 81), a 2-band jump. Main heating runs on electricity.
Held since April 2004 — that's 22 years off the open market, well above the local norm. Across 2000–2004, sale prices on this property compounded at 18.3% per year. Today's modelled estimate of £182,000 sits 130.4% above the 2004 sale of £79,000. On a £-per-square-foot basis, the last sale (£210/sq ft) was about 22.7% below the postcode norm. At 35 m² it sits well below the postcode median (56 m² across 157 EPCs), making it one of the more compact homes locally.
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Low energy lighting percentage decreased
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Wall insulation improved
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 1 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
Sale price has at least doubled since 2000.
£182,000
Modelled from EPC, postcode comparables and a sale-price growth of 18.3% per year over 4 years.
£79,000
Growth on file: 18.3% per year over 4 years.
Sales timeline
28 April 2004Most recent
£79,000
+102.6%over 4 years18 February 2000
£39,000
Median price across the last 5 sales in BN1 3AN: £180,000 (2025–2025).
Nearby sales in BN1 3AN
Flat 8, 12 Denmark Terrace, Brighton, BN1 3AN
Sold Aug 2025
£155,000Flat 9, 15 Denmark Terrace, Brighton, BN1 3AN
Sold May 2025
£120,00022a, Denmark Terrace, Brighton, BN1 3AN
Sold May 2025
£320,000Flat 3, 17 Denmark Terrace, Brighton, BN1 3AN
Sold Mar 2025
£325,000Flat 5, 2 Denmark Terrace, Brighton, BN1 3AN
Sold Feb 2025
£180,000
Versus other Denmark Terrace homes
Flat 1 is notably below the street on habitable rooms.
Price per m²
£2,257
Street avg £4,531
Floor Area
35 m²
Street avg 57 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
CO₂ Emissions
3.5 t/year
Street avg 2.8 t/year
Everything you need to know about Flat 1
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
0.2 km
Park Royal — bus stop.
Closest school
0.4 km
St Mary Magdalen Catholic Primary School. 34 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
53.8dB

Night-time· 23:00 – 07:00
43.4dB






