
As a local Sutherland Shire business, Southern Summit Advisory required a complete commercial office design and fitout solution that reflected their professional brand while enhancing staff productivity and visitor experience.
Southern Summit Advisory are respected accountants and registered tax agents servicing Sutherland and surrounding suburbs. Their work in accounting, taxation and business advisory services demands discretion, clarity and trust — qualities that needed to be embedded into the physical environment.




“I cannot express how delighted we are with the outstanding work provided by ONE Built Projects for our office fit-out at Sutherland. From start to finish, the entire process was nothing short of exceptional. If you are seeking a professional, creative, and reliable team for your office renovation, look no further! ONE Built Projects truly went above and beyond to understand our vision and requirements. They displayed a remarkable level of expertise and creativity, suggesting innovative ideas that perfectly aligned with our company's culture and needs. Their attention to detail was impeccable, and the final result surpassed all our expectations. We are very pleased with the finished results. Al was always friendly and professional.”
As a Sutherland Shire design and fitout company, ONE Built Projects managed the entire process in-house — from concept design and workplace strategy through to approvals, construction and certification.
Our scope included:
- Initial design consultation and workplace planning
- Mood boards and concept development aligned with brand values
- Detailed design documentation and final design resolution
- Fire safety design and compliance coordination
- Complying Development Certificate (CDC)
- Occupation Certificate (OC)
Full commercial office fitout and project management
By delivering a complete design and build solution in Sutherland NSW, we ensured a seamless process with one point of communication, accurate cost planning and strict timeline control.


The design concept balances transparency, warmth and performance. Full-height glass partitions and glazed office fronts were installed to maximise natural light flow and create visual connectivity throughout the workspace. At the same time, carefully engineered acoustic treatments and soundproofing ensure confidential conversations remain private — a critical requirement for an accounting and advisory firm.
Material selection was deliberate and strategic. Dark, durable commercial carpet tiles were paired with timber flooring and hard-wearing vinyl to introduce contrast and depth while ensuring longevity in a high-traffic office environment. The result is a modern aesthetic grounded in practicality.
Biophilic elements were integrated throughout custom joinery and shelving. Built-in greenery softens the architectural lines, improves air quality and enhances employee wellbeing. Subtle pops of green reinforce the brand identity and create a more energised and natural work environment — proven to support productivity and workplace satisfaction.
The arrival experience was designed to make an immediate statement. A bespoke oversized marble reception desk anchors the foyer, complemented by feature LED lighting and a backlit branded logo that reinforces presence and professionalism. Two reception seats provide a welcoming yet refined waiting area.




10 workstations
2 private offices
2 enclosed meeting rooms
1 boardroom
Reception with feature desk and seating
Fully integrated data and cable connectivity for a smart office setup
Internal and external branded signage, energy-efficient LED office lighting, feature lighting elements, and complete data infrastructure were delivered as part of the turnkey commercial fitout.




Choosing ONE Built Projects as a Sutherland Shire commercial fitout and project management specialist provided Southern Summit Advisory with clarity and confidence at every stage.
Because we manage both design and construction:
There is one point of communication from concept to handover.
The individual leading the project was involved from day one, ensuring the original vision remained intact.
Early builder involvement allowed accurate budgeting and supplier coordination.
Timelines were controlled internally, enabling a 3-week transformation with minimal disruption.
Accountability remained clear across design, compliance, construction and certification.
This integrated design and construct approach reduces risk, controls cost, protects programme and ultimately delivers a superior end result.
