About £371,000 for the average Seaford house. That is the median across 354 sales in the past twelve months. Detached averaged £475,000. Flats came in at £200,000. The gap between the two ends is another Seaford flat and change.
The split by property type does the work of explaining that headline number. Semis sat around £355,000 last year. Terraces at £330,000. Detached, £475,000. Flats, £200,000. The market is off by roughly three percent on the year, which reads as a soft cooling rather than a crash. Volume held up at 354 transactions, which is enough for the median to be honest rather than distorted by one landowner selling three houses to their brother-in-law. The spread from a flat to a detached is not a walk most buyers take in one step. Most come in at the terrace or semi end and work up from there, if they work up at all.
On council tax, most of Seaford falls into band C. Roughly a fifth of the stock sits in the cheaper A or B bands, which is more than most towns in the Lewes district manage. The mix of small post-war housing, 1960s flats and older terraces keeps the low-band count healthy. Modal band C means most people are paying middle-of-the-road council tax on middle-of-the-road houses. If you are buying a bungalow, expect band C or D. If you are buying anything with a proper view of the sea, expect to find out what band F actually costs, which is not a small annual line on the household budget.
Typical private rent across the Lewes area runs at about £1,320 a month, which is the local-authority figure and covers everything from Newhaven up to the villages behind Lewes. Seaford sits toward the top end of that spread rather than the bottom. By bedroom the district picture is roughly £920 for a one-bed, £1,200 for a two-bed, £1,500 for a three-bed, and £2,160 for anything with four bedrooms or more. Rent has climbed more than six percent on the year, which is faster than sale prices are moving. If you were planning to rent for a couple of years while you save a deposit, the maths is getting harder rather than easier. That is the current shape of the south coast.
The median household in Seaford earns around £49,600 a year before tax. The median house sells for £371,000. The ratio is about seven and a half, which is stretched but not extreme by south-coast standards. It is meaningfully less stretched than Brighton. The town prices in two-earner households as the default. Single buyers get flats and small terraces. Couples get semis. Detached houses want someone who has already sold something bigger elsewhere and is downsizing with a war chest, or someone with a London salary who has decided the Sussex coast is a better deal than Fulham. Both types are here in numbers.
Above average for what it is, below average for where it is. On the coast at these prices, that is roughly the deal Seaford is offering, and roughly the deal buyers are taking.