McCullum Ashby Architects

We are an architectural practice based in Wahroonga on Sydney’s Upper North Shore. We specialise in bespoke homes, alterations and additions, multi-residential developments and commercial architecture, combining design with planning expertise and commercial understanding.

Our work includes contemporary new homes, heritage renovations, townhouse developments, seniors housing, co-living projects, mixed-use buildings and commercial fitouts. We also test development feasibility and help revitalise existing commercial properties.

We begin each project by understanding the site, its context and our client’s objectives. Our experience includes Heritage Conservation Areas, bushfire-prone land, sloping sites, flood-affected properties and environmentally sensitive land. We navigate council planning controls, Housing SEPP pathways and heritage requirements, providing advice from feasibility through approvals and construction.

We work with homeowners, developers and business owners across the Upper and Lower North Shore, Northern Beaches, Inner West, Hornsby Shire and Greater Sydney. Our architectural design and project management services support projects from concept to completion.