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Get started6 Marine Crescent is a four-bedroom detached house in Seaford (BN25 1DA). It has a recorded floor area of 255 m² (around 2745 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (May 2025) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in January 2009 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Good to Very Good, roof efficiency went from Poor to Good and window efficiency went from Average to Good. Other recorded features include a conservatory.
Sale prices here have outpaced England HPI: 9% per year against 0% for the wider region. Today's modelled estimate of £776,000 is 30.4% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£217/sq ft) was about 17% below the postcode norm. At 255 m² the property is well over the postcode median (107 m² across 7 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, partial demolition and a garage conversion, meaningful when judging how the property has evolved. Last changed hands 10 years ago, in March 2016.
Achieving this rating across a home of this size is uncommon — larger homes typically score lower.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Single storey · Rear of property
Latest sale on 6 Marine Crescent was the highest on Land Registry record across the postcode.
£776,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.0% per year over 7 years.
£595,000
Growth on file: 9.0% per year over 7 years.
On epc rating, 6 Marine Crescent stands well clear of the street.
Price per m²
£2,333
Street avg £3,284
Floor Area
255 m²
Street avg 114 m²
Habitable Rooms
8 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
49.8dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Heating controls upgraded for better temperature management
Wall insulation improved
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Demolish existing rear conservatory and replace with single storey extension
Convert existing garage, replace existing balcony glass/timber balustrade with frameless glass and remove chimneys
18 March 2016Most recent
£595,000
+83.1%over 7 years27 February 2009
£325,000
Median price across the last 5 sales in BN25 1DA: £360,000 (2021–2012).
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 3.4 t/year
BN25 1BB
Closest school
0.6 km
Annecy Catholic Primary School. 5 schools nearby.
Flood risk
Medium
From the Environment Agency.
Night-time· 23:00 – 07:00
39.3dB
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