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Get startedBasement Flat is a mid-terrace house in Seaford (BN25 1JL). It has a recorded floor area of 33 m² (around 355 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (November 2019) shows a C (score 77), near the top of the C band. When first surveyed in November 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Poor to Average and lighting went from Very Poor to Very Good.
Untraded for 25 years, with the last transfer in July 2001. Sale prices here have outpaced England HPI: 14.8% per year against 0% for the wider region. Today's modelled estimate of £163,000 sits 126.4% above the 2001 sale of £72,000. At 33 m² it sits well below the postcode median (61 m² across 26 EPCs), making it one of the more compact homes locally. One planning record on file: a basement excavation approved in 2016. Past consents include a basement excavation and subdivision, meaningful when judging how the property has evolved.
Basement Flat's carbon output is low for the local stock.
Council records show a subdivision application — the property's legal arrangement has been altered.
Section 73A retrospective planning permission for the sub-division of the lower ground floor flat into 2 flats and creation of a basement
Basement Flat's estimated value is more than triple its earliest registered sale price (1999).
£163,000
Modelled from EPC, postcode comparables and a sale-price growth of 14.8% per year over 2 years.
£72,000
Growth on file: 14.8% per year over 2 years.
On years held, Basement Flat stands well clear of the street.
Price per m²
£2,182
Street avg £3,039
Floor Area
33 m²
Street avg 62 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
The Steyne — bus stop.

Daytime· 07:00 – 23:00
50.4dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
Heating controls changed
Low energy lighting percentage decreased
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Window efficiency improved
Upgraded to gas central heating
Connected to mains gas supply
Hot water system upgraded
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
9 July 2001Most recent
£72,000
+38.5%over 2 years2 March 1999
£52,000
Median price across the last 5 sales in BN25 1JL: £260,000 (2023–2019).
CO₂ Emissions
1.0 t/year
Street avg 2.6 t/year
BN25 1ES
Closest school
0.9 km
Seaford Primary School. 5 schools nearby.
Flood risk
Low
From the Environment Agency.
Night-time· 23:00 – 07:00
39.5dB
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