Flat 1, 4 Powis Square, Brighton, BN1 3HH
About Flat 1
Flat 1 is a mid-terrace house in Brighton (BN1 3HH). It has a recorded floor area of 25 m² (around 269 sq ft), construction records dating it to before 1900 and council tax band A. At 25 m² this is the 3rd smallest of 7 units on EPC record in the building, where floor areas span 24–82 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (55 versus a best of 75). The latest certificate (March 2022) shows a D (score 55), a step below the typical UK home. The rating has held steady at D across 3 certificates since May 2009. Between certificates, lighting went from Very Poor to Very Good and main heating went from Poor to Average. The recommended improvements would push it to C (score 70). Main heating runs on electricity.
At 25 m² it sits well below the postcode median (50 m² across 48 EPCs), making it one of the more compact homes locally. Across 2001–2021, sale prices on this property compounded at 5.9% per year. On a £-per-square-foot basis, the last sale (£706/sq ft) was about 98.3% above the typical sold price in the postcode. Last sale on file: £190,000 in September 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
EPC Rating
Certificate validity
Valid until 2 March 2032
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 and has no mains gas supply, 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 grown by over 3x since 2001.
£189,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.9% per year over 20 years.
£190,000
Growth on file: 5.9% per year over 20 years.
Sales timeline
2 September 2021Most recent
£190,000
+113.5%over 12 years6 August 2009
£89,000
+45.9%over 7 years15 November 2001
£61,000
Median price across the last 5 sales in BN1 3HH: £282,500 (2025–2025).
Nearby sales in BN1 3HH
Flat 3, 5 Powis Square, Brighton, BN1 3HH
Sold Nov 2025
£477,500Flat 6, 4 Powis Square, Brighton, BN1 3HH
Sold Nov 2025
£195,000Flat 5, 2 Powis Square, Brighton, BN1 3HH
Sold Oct 2025
£282,5004a, Powis Square, Brighton, BN1 3HH
Sold Jul 2025
£350,000Basement Flat Rear, 1 Powis Square, Brighton, BN1 3HH
Sold Jun 2025
£147,500
Versus other Powis Square homes
On floor area, Flat 1 runs well behind the street norm.
Price per m²
£7,600
Street avg £5,095
Floor Area
25 m²
Street avg 52 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
CO₂ Emissions
3.0 t/year
Street avg 2.8 t/year
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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
0.2 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







