STUDIO SITEC  is an architectural practice that works across the fields of architecture, interior design and urban planning.

The studio is led by founder and principal architect Bert Bulthuis who holds a Bachelor degree in Building Science and a Master degree in Architecture. He founded his architectural firm in The Netherlands in 1993 and established a new branch to expand on his Dutch building philosophy, in Hong Kong in 2012. Collectively, he and his team have designed and realized over 200 buildings, interiors and urban developments across the two practices, employing and collaborating with many talented architects, engineers and designers along the way.

STUDIO SITEC‘s  design specialties include: mixed use developmentshousing projects for special needs groups, environmentally-friendly buildings, housing for private clients, the redevelopment of historical buildings, museums and temples.

STUDIO SITEC uses a green and circular approach in its designs aiming to maximize circularity and to reduce CO² and the use of fossil fuels. Across our current projects,  sustainability, biodiversity (landscape in the cityscape) and the use of non-fossil energy sources (solar energy, wind energy, warming/cooling with heat pump systems) are priorities.

Call, email or find us on social media for enquiries, quotations and to see more about what we do,

Bert Bulthuis, Principal Architect, STUDIO SITEC.

  • Phone or Whatsapp : +852 6289 7012 (Hong Kong)/+31 (0) 653793952 (The Netherlands)
  • Email: or
  • Instagram: @bertbulthuis