Flat 1, 1 Powis Square, Brighton, BN1 3HH
About Flat 1
Flat 1 is a semi-detached house in Brighton (BN1 3HH). It has a recorded floor area of 31 m² (around 334 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (April 2019) shows an E (score 43), well below the UK norm with real room to improve. When first surveyed in December 2008 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 82), a 3-band jump. Main heating runs on to be used only when there is no heating/hot. At 31 m² this is the 7th smallest of 8 units on EPC record in the building, where floor areas span 25–33 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 74).
At 31 m² it sits well below the postcode median (50 m² across 48 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). Across 2000–2021, sale prices on this property compounded at 6.6% per year. On a £-per-square-foot basis, the last sale (£524/sq ft) was about 55.8% above the typical sold price in the postcode. Most recent transfer: June 2021 at £175,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
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
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 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
Flat 1 has more than tripled in price since its earliest registered sale in 2000.
£183,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 21 years.
£175,000
Growth on file: 6.6% per year over 21 years.
Sales timeline
9 June 2021Most recent
£175,000
+288.9%over 21 years24 April 2000
£45,000
Median price across the last 5 sales in BN1 3HH: £282,500 (2025–2022).
Nearby sales in BN1 3HH
Flat 5, 2 Powis Square, Brighton, BN1 3HH
Sold Oct 2025
£282,5004a, Powis Square, Brighton, BN1 3HH
Sold Jul 2025
£350,000Flat 5, 4 Powis Square, Brighton, BN1 3HH
Sold Mar 2023
£275,000Flat 2, 2 Powis Square, Brighton, BN1 3HH
Sold Feb 2023
£350,125Flat 1, 4 Powis Square, Brighton, BN1 3HH
Sold Sept 2021
£190,000
Versus other Powis Square homes
EPC Rating for Flat 1 lags the street by a wide margin.
Price per m²
£5,645
Street avg £5,027
Floor Area
31 m²
Street avg 52 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.7 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
Clifton Hill — bus stop.
Closest school
0.3 km
St Mary Magdalen Catholic Primary School. 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
54.4dB

Night-time· 23:00 – 07:00
44.1dB






