Description

Neptunus 145 – Dutch-Built Aluminium Liveaboard / Recommissioning Project (1985)

Sea Streaker III is a large, Dutch-built Neptunus 145 aluminium cabin cruiser offering substantial accommodation and strong live-aboard or floating holiday-home potential. Hand built by Neptunus BV and well specified when new, this was a high-quality motor yacht in its day and remains a solid platform for the right buyer.

Condition / Status (Important)

This is an older boat offered honestly as a project / recommissioning opportunity, priced accordingly.
The boat has been used in recent years as a river-based holiday home / live-aboard rather than actively cruised.

Engines have been started and running in January '26 and, along with other age-related items, will require mechanical attention as part of normal recommissioning. The boat has not been moved for approximately three years.

BSS passed August 2023, valid until August 2027.
Original engine, generator, and onboard equipment manuals included.
Sold as seen, private sale.

Construction & Decks

Aluminium hull and superstructure. Foredeck connected by wide teak side decks to the aft deck with bench seating. Flybridge with sundeck and dual helm positions (wheelhouse and flybridge).

Interior & Accommodation

Timber-finished interior throughout with a bright, spacious saloon. Sleeps up to 8: master cabin with en-suite, additional guest cabins including twin bunks and a forward twin berth. Dinette with wraparound seating opposite the galley converts to a double berth. Layout suits longer stays aboard rather than weekend use. Interior has previously been redecorated with partial re-carpeting and would benefit from freshening.

Equipment Highlights

Generator • Shore power and AC/DC electrics • Hot & cold water via calorifier and immersion heater • Showers • Radar • VHF • Autopilot • Fitted galley with 24/240V fridges, mains hob and microwave (plus additional original equipment).

Ownership / Use

Two previous owners. Very low lifetime cruising usage relative to age.

Location

Currently afloat at Severn Motor Yacht Club on the River Severn (private, gated site). The club is known for very affordable mooring fees, which may be attractive for a buyer wishing to remain afloat while recommissioning. Mooring is not included with the sale; any enquiries regarding availability and terms should be made directly with the club.

Notes

– This is not a turnkey boat
– Viewing and inspection welcomed by appointment
– Genuine enquiries from buyers who understand recommissioning projects only
– No lift-out available on site; any inspection or survey to be arranged by the buyer and carried out in-situ

This was a formally first-rate Dutch-built motor yacht when new, now offered as a recommissioning project with genuine potential for the right buyer who understands aluminium construction and older vessels.

Viewing and inspection welcomed by appointment. Sensible enquiries only - thank you.

Specifications

Accommodation

Generous live-aboard accommodation finished in timber throughout, creating a warm and traditional interior with good natural light.

The layout provides up to 8 berths, comprising:

Master cabin with en-suite facilities

Forward cabin with twin berths

Guest cabin with twin bunks

Dinette with wraparound seating converting to a double berth

The spacious saloon offers comfortable seating and works well for extended stays aboard rather than occasional weekend use. Large windows provide excellent visibility and light.

The galley is fully fitted and located opposite the dinette, making the layout practical for longer-term living and entertaining onboard.

Interior furnishings have been refreshed previously, including partial re-carpeting, and would now benefit from further cosmetic freshening in line with the vessel’s age and recommissioning status.

Construction

Aluminium hull and yacht superstructure that would benefit from cosmetic refresh. Teak-laid decks. Semi-displacement motor yacht of robust Dutch construction, built for inland, coastal and sea cruising.

Condition reflected in price.

River Mooring

Dressed

Engine(s)

Twin Volvo Penta TAMD-70E diesel inboard engines on shaft drives.
Mechanical engines (no electronic engine management).

Both engines have under 1,700 running hours. Engines have been started and run in January '26 but will require mechanical attention as part of normal recommissioning.

The boat has not been moved for approximately three years and full recommissioning should be expected.

Original engine documentation and manuals included.
Sold as seen, private sale.

Engine Room

Starboard Engine

Port Engine & Generator

Location Map