As the third unit in the Polish builder’s Conrad C144s semi-custom series, she joins sisterships Ace and Extra Time. The project was commissioned by an owner introduced by Y.CO and was developed with a familiar design and engineering team that has now refined the platform across three builds.
Since delivery, Miss Leen has departed Poland on her maiden voyage and has now arrived in the United Kingdom, with AIS data placing the yacht in Portsmouth.
Design team and platform development
The exterior design of Miss Leen comes from Reymond Langton Design, whose straight-bow profile defines the C144s identity. The “S” designation refers to this bow form, which gives the yacht a strong stance on the water while increasing internal volume forward. The result is a profile that feels deliberate and confident, without pushing into unnecessary styling statements.
Naval architecture was developed by Diana Yacht Design, with a full displacement steel hull and aluminum superstructure engineered for long-range cruising and steady behavior at sea. With a beam of 8.7m and a draft of 2.6m, Miss Leen remains well within the under-500 GT threshold, coming in at 497 gross tons.
It is a great honour for us to see another unique superyacht leaving our shipyard and beginning her journey around the world. We are grateful for the trust placed in us and for the opportunity to bring this remarkable project to life."
Motor Superyacht Expert and Project Manager
Construction on the yacht began in mid-2023 under the Project Moonlight name, with the keel laid at Conrad’s Gdańsk yard. She was delivered to her owners in November 2025 and is built in compliance with Lloyd’s Register standards.
Interior and deck layout
Interior design for Miss Leen was developed by Nauta Design - the interior direction focuses on calm materials, clean lines, and large window openings that pull natural light deep into the living spaces.
Accommodation on board the superyacht is arranged for up to 10 guests across five cabins. The owner’s suite is positioned as a private retreat, with large panoramic windows and a layout designed for extended stays on board. Four additional VIP cabins complete the guest accommodation, each designed to the same standard rather than stepping down into secondary guest spaces. Crew accommodation is laid out for a team of nine, with four double crew cabins and a separate captain’s cabin located on the bridge deck for operational convenience.
Outdoor living and amenities
Miss Leen’s exterior spaces are a central part of the C144s appeal, with deck areas structured around genuine use rather than display. Aft, the motor yacht features a generous beach club with direct access to the water, supported by a large hydraulic platform. The beach club connects cleanly with the main deck lounge, creating a natural flow between interior and exterior spaces when at anchor.
On the upper decks, multiple lounge areas and two alfresco dining zones give guests options throughout the day. The sundeck is a standout feature, with a forward-positioned infinity-style pool, a full bar with seating, an outdoor dining table, and expansive sun pads aft. A dedicated open-air cinema setup adds an evening focus to the deck, reinforcing the yacht’s emphasis on social use.
Forward, the bow area includes built-in seating, a table, and additional sun pads, creating another usable guest zone that remains protected when underway.
The yacht’s garage is sized to house a tender of up to seven meters, along with two full-size Jet Skis and several Seabobs. A large hydraulic side-opening door allows for efficient launch and recovery while keeping the aft beach club clear during operations.
Performance and range
Powered by twin Caterpillar C18 diesel engines producing 680hp each, Miss Leen is set up for efficient displacement cruising rather than headline speeds. She reaches a top speed of around 13 knots, with a comfortable cruising speed of 11 knots. At an economic speed of 10 knots, the yacht offers a range of approximately 4,000 nautical miles, supported by fuel tanks holding over 51,000 liters.
This range, paired with full compliance for yachts under 500 GT, positions Miss Leen well for extended itineraries without pushing into larger tonnage or more complex regulatory categories.
The fourth Conrad C144s superyacht is listed for sale on YachtBuyer and is currently asking €32,000,000.
Looking to own a Conrad Shipyard yacht? View all new Conrad C144s yachts for sale, tracked in real-time by YachtBuyer MarketWatch. We scan the entire market to ensure access to all genuine listings, saving you time. Alternatively, you can view all other Conrad Shipyard yachts for sale.
