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Get started10 Bydown is a four-bedroom detached house in Seaford (BN25 3NF). It has a recorded floor area of 133 m² (around 1432 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (January 2026) shows a C (score 72). When first surveyed in March 2010 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Very Good and hot-water efficiency went from Average to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
Held since March 2011 — that's 15 years off the open market, well above the local norm. Sale prices here have outpaced England HPI: 7.4% per year against 0% for the wider region. Today's modelled estimate of £499,000 sits 58.4% above the 2011 sale of £315,000. On a £-per-square-foot basis, the last sale (£220/sq ft) was about 23.4% above the typical sold price in the postcode. 2 planning records sit against the property, 0 approved, 2 refused. At 133 m² it's 17.1% smaller than the typical home in the postcode (161 m² median across 6 EPCs).
The EPC has just been inspected, so the rating reflects current condition.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Single storey
10 Bydown has more than doubled in price since the earliest registered sale in 1998.
£499,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 13 years.
£315,000
Growth on file: 7.4% per year over 13 years.
On floor area, 10 Bydown runs well behind the street norm.
Price per m²
£2,368
Street avg £2,616
Floor Area
133 m²
Street avg 160 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Hindover Road — bus stop.

Daytime· 07:00 – 23:00
50.3dB

Changes detected from historical EPC data
Hot water efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Single storey front & rear extensions (existing conservatory to be demolished) - resubmission of LW/07/0033
Extension: Rear of property
Erection of a two storey rear extension and a single storey front extension including alterations to roof
31 March 2011Most recent
£315,000
+152.0%over 12 years15 May 1998
£125,000
Median price across the last 5 sales in BN25 3NF: £465,000 (2021–2007).
CO₂ Emissions
3.7 t/year
Street avg 4.9 t/year
BN25 3NF
Closest school
0.7 km
Seaford Head School. 5 schools nearby.
Night-time· 23:00 – 07:00
40.0dB
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