5 Hotham Street, Collingwood
Victoria 3066, Australia




Goldfields Dwelling, Victoria

Little Bean, Shanghai

Cult Showroom Staircase, Melbourne

Palace Electric Cinema, Canberra

Studio HiHo, Melbourne

Filter, Melbourne


DesignOffice is a Melbourne-based architectural and interior design practice creating confident and personable responses to client briefs.


We are an award-winning practice with over 30 years of collective experience.


Our design responses are shaped with an understanding and empathy towards each client and every brief.

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Selected works


DesignOffice work across a wide range of scales and sectors.


Directed by Mark Simpson & Damien Mulvihill, the team at DesignOffice hold extensive experience in designing and delivering innovative buildings and interiors.

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Platform by DesignOffice

Platform is a strategy-led design service, which facilitates the creation of branded architectural environments.

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Higher Ground

Work is well underway on site for Higher Ground – the new venue from the team at Top Paddock

Instagram @_designoffice

Midnight blue steel staircases all painted and ready to go at Higher Ground @highergroundmelbourne @basisbuilders  Follow _designoffice

Mud Australia in Double Bay

The new retail store and espresso garden for Mud Australia is now open in Sydney’s Double Bay

DesignOffice for Milieu

DesignOffice for Milieu is a collection of five unique townhouses located on Hertford Street, Fitzroy