Building architect & building design Sydney

What Is a Building Designer?

According to the BDAA, a Building Designer is a highly skilled professional who combines creativity, innovation, and a commitment to sustainability in the construction industry. At giantA Pty Ltd^®, we are proud to be accredited Building Designers, delivering exceptional designs for Class 1 buildings (residential homes), Class 2 buildings (multi-residential apartments), Class 3 buildings (hotels or boarding houses), and Class 10 structures (non-habitable buildings like sheds or carports) under the National Construction Code (NCC).

Our team stays ahead of industry trends through BDAA’s Continuous Professional Development (CPD) program, ensuring expertise in low-rise residential buildings, medium-rise commercial projects, and large-scale multi-story buildings. We assess site conditions and existing structures to provide practical, legally compliant, and functional designs that meet NCC building classifications, including Class 4 (dwellings in commercial buildings), Class 5 (offices), Class 6 (shops), and Class 7 (warehouses or car parks).

What Can giantA Pty Ltd Do?

With BDAA accreditation, we specialise in a wide range of projects, here’s what we can do for you:

1. Custom Building Design: We create detailed plans, 3D models, and layouts for Class 1a homes (single dwellings), Class 2 multi-residential units, and more, all compliant with NCC standards.
2. Planning and Consultation: From site analysis to material recommendations, we support low-rise buildings, medium-rise structures, and open category projects.
3. Sustainable Design: Our focus on Ecologically Sustainable Development (ESD) delivers energy-efficient solutions for Class 5 offices, Class 6 retail spaces, and beyond.
4. Collaboration: We partner with architects, engineers, and councils to ensure NCC compliance across all project types.
5. Documentation: We prepare building permit documentation for Class 7 car parks, Class 8 factories, and other structures, meeting Australian standards.
6. Oversight: Where needed, we monitor construction to ensure your Class 9a healthcare facility or Class 9b assembly building aligns with the original design.

Why Choose Us?

Our in-house team excels at non-complex building designs, managing every detail for Class 1, to Class 10 projects. Whether it’s commercial building design or residential building design, we bring precision, expertise, and sustainability to every job. From low-rise homes to medium-rise apartments and large-scale commercial structures, we deliver results that meet NCC classifications and exceed expectations.

Ready to start your next project? Contact us for expert building design services that ensure quality, compliance, and success!

For a new Class 1a house, see our hire hub on single dwelling design Sydney — DA/CDC pathway advice and fixed-fee project review.

Building architect vs building designer (Sydney)

People searching for a building architect in Sydney often mean a practice that will design their house or commercial building and prepare DA-ready documents. In NSW, architect is a protected title — only a person on the NSW Architects Registration Board register may call themselves a registered architect. giantA’s nominated registered architect is listed on our team page.

A building designer (BDAA-accredited at giantA) leads design for many non-complex NCC Class 1–10 projects — residential and commercial — with in-house documentation. When the job is regulated Class 2 (or other scopes needing architect/RDP declarations), we coordinate through our nominated architect and RDP pathway. See architectural services and Class 2 building design NSW for those routes.

What we design

• Residential building design — new houses, dual occupancy, renovations and Class 10 structures
• Commercial building architect / design work — offices, retail, warehouses and mixed uses (non-complex)
• Multi-residential and Class 2 coordination where DBP/RDP applies
• DA and CDC documentation packages with BASIX/NatHERS where required — see BASIX & NatHERS

Studio in Parramatta; projects across Greater Sydney. Request a project review

Frequently asked questions

What is a Building Designer and is giantA accredited?

A Building Designer combines creativity, innovation and sustainability in construction. giantA Pty Ltd are BDAA-accredited Building Designers, authorised to work on large-scale multi-storey buildings across both the commercial and residential sectors.

What classes of buildings can giantA design?

Under the National Construction Code (NCC), giantA designs Class 1 (residential homes), Class 2 (multi-residential apartments), Class 3 (hotels or boarding houses) and Class 10 structures (non-habitable buildings such as sheds or carports), plus other Class 4–9 scopes when they are non-complex and within our accreditation.

Does giantA carry out building design work in-house?

Yes. For projects not classified as complex structures, 100% of the design work is carried out in-house, ensuring seamless execution, high-quality standards and efficient coordination throughout the process.

What is a building architect in NSW?

“Building architect” is a common search phrase for someone who designs buildings. Legally, only a NSW-registered architect may use the protected title architect. Many clients looking for a building architect need BDAA building design for a house or commercial fit-out, with a nominated registered architect involved when the law requires it. We match the role to the building class — see our team.

Do I need a building architect or a building designer for a house in Sydney?

Most new Class 1a houses and renovations in Sydney are delivered by building designers with DA or CDC docs. Engage a nominated registered architect when the proposal is regulated or your certifier/council requires architect involvement. Start with architectural services or this building design page and we will confirm which lead fits.

Can giantA handle commercial building architect / design work?

Yes — non-complex commercial and multi-storey work (offices, retail, warehouses and similar NCC classes) is designed in-house under our BDAA accreditation. Complex or heavily regulated scopes are scoped carefully and may involve our nominated architect / RDP pathway.

How does building design relate to DA/CDC?

Building design produces the drawings and supporting documents your DA or CDC pathway needs. We advise which pathway fits the site controls, then package plans for council or a private certifier. Energy certificates sit with BASIX & NatHERS; Class 2 regulated design sits with Class 2 building design NSW.