A technical design guide for creating better medium density housing in Aotearoa New Zealand

Get started

Guy Marriage

Photo courtesy of Simon Wilson

Best-practice guidance for the design and construction of medium density housing in NZ.

Medium includes industry solutions for key performance areas like acoustics, fire performance, services design and weathertightness.

As both a published book (2022) and online resource, it is a partnership between Guy Marriage (Senior Lecturer at VUW School of Architecture and author of TALL: The Design and Construction of High-Rise Architecture and Modern Apartment Design) and EBOSS.

Update March 2023

Bonus web only details

To augment the industry solutions in the 2022 book edition of Medium, new supplementary detailed drawings are now available on mediumdensity.nz.

Learn more


Part One


Part Two


Part Three


Part Four


Praise for Medium

“Now is the perfect time for Medium. Guy Marriage and EBOSS are well-aligned in envisaging a future of better built medium-density housing. Developers, planners, designers and builders would all benefit from Marriage’s superb writing and the efforts of EBOSS to seize this opportunity to influence a better future built environment for Aotearoa.”

Pamela Bell, Chief Executive, NZIOC

“Successful medium density housing has many technical challenges, but Guy Marriage has shown how to create enduring medium density housing. This delightful book delivers sound advice on how to build better housing.”

Professor Robyn Phipps, Head of School of Architecture, Victoria University of Wellington

“A mentality refresh is needed; one that focuses on self-education, international best practices, creativity, and a drive to do things better. Medium pushes this mentality by providing industry professionals actionable solutions.”

Jonathan Hill, Kaizon

Product partners

Industry consultants