Flat 1, 6 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 64 m² (around 689 sq ft) and construction records dating it to before 1900. At 64 m² this is the largest unit on EPC record across the building (21–64 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (40 versus a best of 67). The latest certificate (May 2025) shows an E (score 40), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2017); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good and main heating went from Poor to Average. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity.
Held since February 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 64 m² the property is well over the postcode median (49 m² across 48 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). Across 1998–2007, sale prices on this property compounded at 18.9% per year. Today's modelled estimate of £272,000 sits 136.5% above the 2007 sale of £115,000. On a £-per-square-foot basis, the last sale (£167/sq ft) was about 51.4% below the postcode norm.
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
Flat 1's carbon output runs well above what efficient homes in the postcode produce.
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 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · 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
Price for Flat 1 has grown more than fourfold since the 1998 starting point.
£272,000
Modelled from EPC, postcode comparables and a sale-price growth of 18.9% per year over 9 years.
£115,000
Growth on file: 18.9% per year over 9 years.
Sales timeline
19 February 2007Most recent
£115,000
+347.5%over 8 years18 June 1998
£25,700
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
£1,797
Street avg £5,187
Floor Area
64 m²
Street avg 51 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
6.7 t/year
Street avg 2.6 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






