about milieu

Milieu Architecture + Design is an Auckland-based practice working across residential, renovation, and small-scale commercial projects throughout New Zealand. Our work is grounded in a thoughtful, pragmatic approach — responding carefully to site, context, and the way people live and use space, while balancing design quality with buildability and longevity.

We work closely with a well-established network of consultants, builders, and suppliers, enabling a coordinated and considered design process from early concept through to construction.

selected services include:

  • Pre-purchase feasibility advice and written feasibility reports

  • Architectural services from concept design through to completion

  • Building and resource consent documentation and coordination

  • Swimming pool and pool house design

  • Interior architecture including kitchens, bathrooms, and custom cabinetry

  • Aged care and accessible design

  • Hard landscaping and external works


Milieu is led by Kate Beilby, an architect with over 20 years’ experience working across a wide range of residential and commercial projects. Kate brings a calm, methodical approach to design, with a strong focus on clear communication, problem-solving, and well-resolved outcomes.

Her professional experience, combined with a practical understanding of construction and project delivery, supports a design process that is both creative and grounded — resulting in spaces that are functional, enduring, and carefully tailored to each client and site.

KATE BEILBY