McCullum Ashby Architects

McCullum Ashby Architects Nominated Architects NSW
Christian McCullum #7463 & Murray Ashby #8055

12/06/2026

We're proud to have been involved in the transformation of this remarkable project with Millers Projects.

Thoughtful design, exceptional craftsmanship and a fantastic collaborative team have delivered an outstanding result.

Congratulations to everyone involved.

The most expensive mistake people make before talking to an architect?Assuming a property can do something simply becaus...
08/06/2026

The most expensive mistake people make before talking to an architect?

Assuming a property can do something simply because someone says it can.

We’ve seen people purchase sites believing an old development approval or planning pathway was still available, only to later discover the planning controls had changed entirely.

In one case, a site previously associated with seniors housing had since become affected by biodiversity mapping, meaning the original planning assumptions no longer applied.

Another common one is spending tens of thousands renovating a kitchen or bathroom in the “wrong” location, only to later realise the layout limits the entire future potential of the home.

The reality is:
▪ Planning controls change,
▪ Sites have hidden constraints,
and early design decisions can either unlock value… or quietly destroy it.

A short conversation before purchasing, renovating or planning can often save enormous amounts of money, time and frustration later.

Good architecture isn’t just about how something looks.
It’s about understanding what’s actually possible before you commit.

What’s the worst property or renovation mistake you’ve seen someone make?

Are Australian homes simply too big?Australia builds some of the biggest homes in the world, but are we actually living ...
01/06/2026

Are Australian homes simply too big?

Australia builds some of the biggest homes in the world, but are we actually living better because of it?

The average new Australian house was around 236m² in 2019/20, larger than the average new home in the US.

At the same time:
▪ Building costs are rising,
▪ Block sizes are shrinking,
▪ Energy costs are rising,
and many “extra” rooms barely get used.

Good architecture isn’t always about adding more area.
Sometimes it’s about making less space feel better.

So what do you think? Would you rather a larger home with more rooms or a smaller home with better design and functionality?

We’re pleased to share that DA approval has now been granted for our Pharmacy project in Turramurra.Located on a promine...
29/05/2026

We’re pleased to share that DA approval has now been granted for our Pharmacy project in Turramurra.

Located on a prominent corner site, the project reimagines a long-standing local pharmacy through a contemporary architectural response that strengthens the streetscape while improving functionality, accessibility and the customer experience.

The design carefully balances modern retail requirements with the scale and character of the surrounding neighbourhood, creating a refined and welcoming addition to the village precinct.

We look forward to progressing the project into the next stage.

Good architecture is often defined by the details.Not just the junctions between materials, the alignment of a shadow li...
22/05/2026

Good architecture is often defined by the details.

Not just the junctions between materials, the alignment of a shadow line, or the precision of a stair, but the details of how people live, how light enters a room, how a home responds to its landscape, climate and local context.

At every scale, thoughtful detailing shapes the experience of architecture.

For us, attention to detail means understanding the unique qualities of each site, the character of each neighbourhood, and the everyday rituals of the people who will inhabit the space.

It’s these details, both built and contextual, that create architecture with clarity, longevity and meaning.

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The Federal Budget announced on Tuesday included several measures aimed at increasing housing supply including faster pl...
15/05/2026

The Federal Budget announced on Tuesday included several measures aimed at increasing housing supply including faster planning approvals and tax changes designed to priortise home ownership.

For homeowners considering a new home, major renovation or extension, these changes may create stronger conditions to start planning sooner rather than later, particularly as demand for well-designed housing continues to grow.

Early engagement with your architect can make a significant difference in navigating approvals, feasibility and construction timing.

If you’re considering a project in 2026, now is a good time to start the conversation.

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Construction is officially underway at JACK HOUSE in Gordon and we’re excited to see this heritage alterations + additio...
08/05/2026

Construction is officially underway at JACK HOUSE in Gordon and we’re excited to see this heritage alterations + additions project coming to life on site.

This project carefully balances contemporary family living with the character of the original heritage home, creating a light-filled new addition that respectfully contrasts old and new.

A big thank you to the team at Millers Projects for bringing the vision to life - we’re looking forward to watching the build progress over the coming months.

Builder: Millers Projects

Our Roseville project has been DA approved! The project represents a carefully considered transformation of an existing ...
29/04/2026

Our Roseville project has been DA approved!

The project represents a carefully considered transformation of an existing home within the Clanville Conservation Area in Roseville. The design focuses on enhancing liveability through improved spatial planning, increased natural light, new swimming pool and a stronger connection between indoor and outdoor living areas, delivering a contemporary family home while respecting the character of its surroundings.

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02/04/2026

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New year. New project. Start now.As we step into the new year, we’re excited and refreshed ready to explore all new proj...
27/01/2026

New year. New project. Start now.

As we step into the new year, we’re excited and refreshed ready to explore all new projects in the place we know best. If you’re thinking about building, renovating, or developing, now’s the moment to act.

If your next project is just around the corner, start the conversation and together, let’s make it a reality.

Address

Suite 1B, 1-5 Railway Avenue
Wahroonga, NSW
2076

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+61294874033

Website

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