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Architectural services Sydney — design, DA/CDC approvals & Class 2

giantA provides architectural design and NSW approval documentation for homeowners and small developers across Greater Sydney — DA and CDC pathways, Class 2 and Registered Design Practitioner (RDP) support where regulated, plus BASIX and NatHERS with your drawings. Parramatta studio, statewide project support.

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What architectural services we provide

This hub is the hire map for architectural services Sydney — what we design, how NSW approvals work, and where Class 2 sits. Use it to choose a pathway, then deep-dive on the service pages linked below.

Approvals

Dwellings (Class 1 / 10)

Class 2–9 regulated

  • Class 2 building design NSW — apartments, DBP Act coordination, RDP declarations
  • Commercial, retail, warehouse, medical, childcare and aged-care classes — coordinated as scoped; ask for fit before committing

Location

Specialist support

  • BASIX & NatHERS — residential energy and thermal comfort certificates with design docs
  • Landscape, heritage, measured survey and development due diligence — scoped on enquiry
  • Full index: all services

NSW approval pathways (DA, CDC, BIC, s 4.55)

Homeowners and small developers usually need one clear answer: DA or CDC? giantA starts with site and controls review, then packages drawings and supporting documents for the pathway that actually fits — not the one that sounds fastest on a brochure.

Pathway When it typically applies What we prepare
DA Council merit assessment required, or CDC not available for the proposal Plans, SEE coordination, residential BASIX/NatHERS as required, NSW Planning Portal lodgement support
CDC Proposal meets a relevant SEPP / Housing Code and a certifier can assess Code-compliant documentation and certifier coordination
BIC Unauthorised or undocumented works needing a Building Information Certificate Rectification / existing-conditions documentation as scoped
s 4.55 Changing an approved DA (minor or more substantial modification) Amended plans and consent-condition coordination

Indicative assessment windows often quoted industry-wide — DA roughly 6–16 weeks via council; CDC roughly 2–4 weeks (sometimes cited as about 10–20 days) via a private certifier when the design is code-eligible — are not guarantees. Actual timing depends on council/certifier workload, neighbour notification, referrals and the completeness of the package. We never promise a fixed approval date.

Development Application (DA)

A DA is assessed by your local council. Residential projects usually need a Statement of Environmental Effects (SEE), architectural drawings to council standards, and a BASIX certificate (with NatHERS where required). giantA prepares the architectural package and coordinates lodgement through the NSW Planning Portal. Detail: Development Application.

Complying Development Certificate (CDC)

CDC can be faster when your proposal meets every applicable standard under the relevant SEPP or Housing Code — but it is not always available, and “faster” only applies if the design is truly eligible. A private certifier (or council) assesses the certificate. Honesty first: if setbacks, height, landscaping or overlays push you outside the code, we advise DA instead of forcing a CDC. Detail: Complying Development Certificate and our DA vs CDC guide.

BIC and section 4.55

Building Information Certificate (BIC) work covers documentation for unauthorised or undocumented building work when council requires a certificate of structural adequacy or similar — scoped case by case.

Section 4.55 modifications amend an existing development consent (for example minor design changes or more substantial alterations to approved plans). We prepare amended drawings and supporting material aligned to the consent conditions. Ask via /help rather than treating BIC or s 4.55 as a one-size package.

Class 2, DBP Act and RDP

If you are planning apartments or other Class 2 buildings in NSW, design is not “just another residential DA.” Regulated design under the Design and Building Practitioners Act 2020 (DBP Act) means registered practitioners, coordinated documentation and Registered Design Practitioner (RDP) declarations where required — fire, structure, waterproofing and related regulated disciplines sit in that framework.

giantA provides Class 2 building design coordination and the documentation pathway for regulated projects. We do not dump full DBP law on this hire hub: the working detail, declarations and process live on our dedicated page — Class 2 building design NSW.

Confirm practitioner registration on the public registers before you engage — we do not publish individual ARB or Design Practitioner numbers on this page. For Class 2, also confirm the RDP pathway under the DBP Act.

For hire intent in one line: if a certifier, financier or council has told you the building is Class 2, start with that hub and request a project review so we can confirm RDP arrangements before design fees lock in.

Homes and multi-dwelling (Class 1 pathway)

Most giantA residential work sits in NCC Class 1a / 1b and Class 10 structures. Pick the brief that matches yours — each page stays lean so this hub does not duplicate full guides:

BASIX and NatHERS are bundled with residential approval docs as required — see BASIX & NatHERS rather than a second energy essay here.

How we work

  1. Enquiry — share site address, brief and any council or certifier notes via /help.
  2. Feasibility / pathway advice — zoning, overlays and likely DA vs CDC (or Class 2) path before you commit to full documentation fees.
  3. Concept — massing, planning compliance and design options aligned to the brief and controls.
  4. Approval documentation — drawings and supporting material for DA or CDC, with BASIX & NatHERS for residential lodgements as required.
  5. Lodgement coordination — Portal or certifier package as scoped.
  6. Construction documentation / CC coordination — when included in the agreed scope (not every fee proposal includes every stage).

We keep the process practical: clear pathway, complete packages, and design craft that still has to pass NSW rules. No vocation essays — just scoped work you can brief a builder and a certifier with.

Where we work

Our studio is in Parramatta CBD. We regularly deliver projects across Greater Sydney, including Western Sydney growth corridors, and support broader NSW work as scoped.

We do not publish fake suburb lists. If your site is outside the usual Greater Sydney pattern, say so on the enquiry form and we will confirm travel and council familiarity before quoting.

Fees & what you get

Architectural fees depend on building class, site complexity, whether BASIX/NatHERS is bundled, and how far you need us to go (concept only vs approval docs vs construction documentation).

We issue a fixed-fee proposal after a free site feasibility check. Council, certifier, NSW Planning Portal and consultant fees (structural, stormwater, and so on) are separate from giantA’s design fee.

Optional comparison for buyers weighing “architect vs drafting”: architectural design covers concept, planning compliance and consultant coordination; drafting typically documents an already-agreed design. Most DA/CDC lodgements need both stages in sequence — we scope which package you actually need after feasibility.

For title-protection checks, use the NSW Architects Registration Board register. We do not display ARB or nominated-architect registration numbers on this page.

Related services & guides

External reference (directory honesty — we are not the register): NSW Architects Registration Board — Find an architect.

Frequently asked questions

What do architectural services in Sydney include?

Typically: concept through documentation design, NSW pathway advice (DA vs CDC), approval documentation and lodgement coordination, residential BASIX/NatHERS as required, and Class 2 / RDP support where the building is regulated. Scope is project-specific — giantA confirms inclusions in a fixed-fee proposal after site feasibility.

How do I find an architect in NSW?

Check the NSW Architects Registration Board register for title protection. For Class 2 work, also confirm Design Practitioner / RDP arrangements under the DBP Act. giantA is a Parramatta-based practice offering design plus approvals for homeowners and small developers — contact us for fit and scope. We do not replace the public register.

When should I use DA vs CDC?

Use CDC when the proposal meets a relevant SEPP or Housing Code and a certifier can assess it. Use DA when council merit assessment is required or CDC is not available. giantA advises the pathway after site and controls review — see the DA vs CDC guide.

Do you design Class 2 apartment buildings?

Yes. We provide Class 2 design coordination and regulated documentation pathways. Detail on RDP declarations and the DBP process lives on Class 2 building design NSW.

How much do architectural services cost in Sydney?

Fees depend on building class, site complexity, whether BASIX/NatHERS is bundled, and how far you need us to go (concept only vs approval docs vs construction documentation). We issue a fixed-fee proposal after a free site feasibility check. Council, certifier and Portal fees are separate.

Where does giantA work?

Parramatta CBD studio; Greater Sydney (including Western Sydney growth corridors) and broader NSW as scoped. See Architect Parramatta and Architect Western Sydney.

Talk to giantA — Request a project review · +61 488 880 787 · info@giantA.com.au