ASEA YACHT DESIGN (AYD) is a professional naval architectural design company specialising in design of luxury motor yachts, catamarans and commercial vessels such as passenger ferries, patrol boats, dinner cruise boats, charter boats, barges etc

AYD established in 1998 (formally Naval Architects Australia), is a small professional design company that offers a wide scope of design and consulting services to the pleasure and commercial ship & boat building industry, private customers and fellow architects. From conceptual and preliminary design and analysis stages of general arrangement, weight estimate, hull lines development, stability, structure and resistance through to the final design stages of detailed construction, classification, and survey drawings, CNC cutting data, stability incline test and report, sea trails and operating manuals.


Situated on the Gold Coast Australia which is host to the Sanctuary Cove International Boat Show andis one of Australia’s main boating cities, AYD reach of clientele extends beyond its home waters toneighbouring countries such as Indonesia, Singapore, Thailand, Vietnam, P.R China, Taiwan, and Sth Korea and even further abroad into Europe and USA.

AYD design office is fully equipped with up-to-date computer hardware and software, capable to handle any size project. In the near future AYD is to implement a quality assurance management system in accordance with AS/NZS ISO 9001:2000 for Ship Design, Naval Architecture and Marine Engineering Services. AYD maintains close associations with fellow engineering companies for support in specialised design and engineering projects if required.

Tim Withrington
Director and Principle Naval Architect

Director Tim Withrington, a graduate from the Australian Maritime College with a honours engineering degree in naval architecture, heads up the company’s everyday design and engineering services operations.


Tim is also a certified boat builder with over twenty years experience, an IMCI CE and NMMA US Inspector for vessels under 24m and a ASMA Accredited Marine Surveyor. Tim is also a member of the Royal Institute of Naval Architects (RINA).


Tim's aim is to provide state of the art, innovative and practical solutions to clientele with dialogue and personal service being the key parts of the process.

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