10a, Basement Flat, Powis Square, Brighton, BN1 3HH
About 10a
10a is a mid-terrace house in Brighton (BN1 3HH). It has a recorded floor area of 76 m² (around 818 sq ft) and construction records dating it to before 1900. The latest certificate (October 2022) shows a C (score 70).
Untraded for 26 years, with the last transfer in January 2001. At 76 m² the property is well over the postcode median (49 m² across 48 EPCs), placing it in the larger end of the local stock. Across 1998–2001, sale prices on this property compounded at 32.8% per year. Today's modelled estimate of £319,000 sits 200.9% above the 2001 sale of £106,000. On a £-per-square-foot basis, the last sale (£130/sq ft) was about 64.6% below the postcode norm.
Energy performance
EPC Rating
Certificate validity
Valid until 13 October 2032
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
10a 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 1998.
£319,000
Modelled from EPC, postcode comparables and a sale-price growth of 32.8% per year over 3 years.
£106,000
Growth on file: 32.8% per year over 3 years.
Sales timeline
18 January 2001Most recent
£106,000
+112.2%over 2 years26 May 1998
£49,950
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
Price per m² for 10a lags the street by a wide margin.
Price per m²
£1,395
Street avg £5,343
Floor Area
76 m²
Street avg 51 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.7 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







