People have lived around this area since Iron Age dwellers built their fort on Castle Hill overlooking the present harbour mouth.
The Saxons established the village of Meeching on the banks of the river Ouse which entered the English Channel just below this hill
around 480AD, just after the withdrawal of the Romans from England. The village name can be found on old maps variously as Myching or
Mitching.
Due to the low lying land and the drifiting of shingle banks the river outlet moved eastwards towards Seaford Head, but
the sea is as always unstable and the river mouth once again silted up and by the sixteenth century the water had difficulty in escaping to the sea.
During a great storm in 1579, during the reign of Elizabeth I, the shingle banks were breached and new outlet was formed between Meeching and Seaford somewhere in the area of Tidemills. This did little to provide a reliable outlet to the sea, or a suitable harbour, so 1791 a new outlet was cut just below castle hill, and a short breakwater built. This was improved in with a 150 ft. groyne in 1847 and the replaced with the present brakwater in 1890.
Progress and development of the port, however, was slow with the main cargos being the export of Wealden Oak and the import of spirits, wine and block ice. The latter being taken from the sailing ships by horse-drawn railway wagons to wooden sheds for storage in the nearby chalk quarry owned by Messers Colgate and Gray, and thence to its final destination by horse drawn cart. This was in use until the 1914-1918 war. The quarry, as such no longer exists and is now the site of the Quarry Road Industrial Estate. The main development started around 1847 with the building of the railway from Lewes to the port and the start of the cross-channel ferry service to Dieppe, for which the town is best known today. Indeed, Today, Newhaven is the only significant cross-Channel passenger port in Sussex, with its regular service to Dieppe. It is also the only Sussex port deep enough to accept sea going vessels at all states of the tide.
In 1904 the Marconi Company established a ship to shore radio station on the low lying land to the east of the town, but it took until 1912 before regular communications were established. For details and pictures see Friends of Tidemills site.
In more recent times, Newhaven was the point of departure for 1000 Canadian & Allied servicemen for the ill-fated Dieppe raid in 1942. Their memory is preserved by a memorial in the form of a granite plinth in a small garden of rememberence by the harbour.
Another incident of notoriety occured in 1974 when a car owned by Lord Lucan, formerly Richard John Bingham, was found abandoned at the port some three days after his children's nanny was murdered and his wife attacked at their London flat. He has never been seen again!