Class 2 - Residential
High-Rise Residential Towers
Approvals typically in ~35 days
Protect your design intent with early compliance clarity.
"Finding out a design is non-compliant after client sign-off causes friction. We provide clear, early guidance to keep your designs intact. We provide the certainty you need to move forward."
Design with certainty,
approve with speed.
Expert BCA consulting to ensure your architectural visions pass council and private certification.
Concept
Free Pre-Lodgement BCA Feasibility
At concept or schematic design, we provide a high-level BCA and SEPP feasibility assessment to identify compliance issues, siting constraints, and performance solution requirements before they become embedded in your documentation.
Design Development
Ongoing Compliance Guidance During Documentation
As your design develops, we provide clear, written advice on compliance requirements so you can make informed decisions.
LODGEMENT
Efficient Processing — First Time
We process your application with the goal of zero RFIs. If clarification is needed, we issue a single, itemised request—not multiple piecemeal queries.
APPROVAL
Certificate Issued. Relationship Intact.
Your CDC or CC is issued, your client receives approval, and you receive a written record of key compliance decisions for future projects.
Have a question about the process? Call us - we're happy to walk you through it.
What actually happens, and what you need to do
Your effort is minimal. Ours is total.
SHARE YOUR CONCEPT
You:
Send preliminary sketches, a site plan, or a scheme drawing — whatever stage you are at.
We:
Provide a high-level BCA and SEPP feasibility assessment within 48 hours. Flag any critical compliance issues or overlay constraints that may affect the design.
COLLABORATE DURING DESIGN DEVELOPMENT
You:
Refer specific compliance questions to us as they arise — setbacks, fire separation, NCC compliance, performance solutions.
We:
Provide clear written advice on each question. Act as your compliance resource throughout the documentation phase.
LODGE FOR APPROVAL
You:
Submit your final documentation package.
We:
Process your CDC or CC application efficiently. Issue a single, itemised RFI if required — never a series of piecemeal requests.
RECEIVE APPROVAL
You:
Hand your approved plans to the builder.
We:
Issue the CDC or CC with a written compliance record. Remain available for any construction-stage queries from you or the builder.
Ready to partner with No1?
Get a fast-tracked quote from a licensed NSW certifier. We're ready to review your next project.
Select your project type
See the exact documents needed. No guesswork, no endless lists.
Architectural Plans
Full Set — Floor plans, elevations, sections, and site plan — SEPP-compliant dimensions and annotations
Shadow Diagrams
Required for dual occupancy and multi-dwelling CDC — showing shadow impacts on adjoining properties at winter solstice
BASIX Certificate
Site-specific certificate — must match the submitted plans
Section 10.7(2) Planning Certificate
Confirming CDC eligibility and absence of prohibitions
Survey Plan
Registered survey confirming boundary dimensions, easements, and levels
Structural Engineering Plans
Required where the design involves a structural element
Missing something? Don't worry — we can help source it.
Start your applicationUnrestricted Authority
Our Certification Capabilities
Projects we have certified.
Class 7b & 8 - Industrial
Industrial Warehousing & Logistics
Approvals typically in ~20 days
Specialist Building Inspection
Roof Framing & Structural Defect Audit
50+ page report in 24 hours
Water Leak & Damp Inspection
Subfloor Moisture & Water Ingress Detection
Non-destructive thermal scanning
Dilapidation & Structural Audit
Masonry Cracking & Settlement Assessment
Legal third-party sign-off
Class 1 & 2 - Residential
Custom Luxury Homes & Duplexes
CDCs typically in ~14 days
Class 5 & 6 - Commercial
Medical Centres & Commercial Fitouts
CDCs typically in ~10 days
Class 10b - Residential
Swimming Pools & Minor Structures
CDCs typically in ~5 days
Where We Provide This Service
No.1 Building Services provides fast, unrestricted certification across the following regions. Explore our interactive coverage map.
South West SydneyGreater Western & North West SydneyCity & Inner WestParramatta & Central WestNorthern Beaches & North ShoreEastern SuburbsSt George & Sutherland ShireNewcastle & The Lower Hunter
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Frequently Asked Questions
Yes. We provide written pre-lodgement BCA and SEPP feasibility advice for all design partners. For new partners, an initial concept review is complimentary. This is the single most effective way to eliminate approval delays.
We have extensive experience with constrained sites across Greater Sydney. At the pre-lodgement stage, we identify all applicable overlays and advise on the specific reports, referrals, and design responses required. We do not wait until lodgement to flag these issues.
Where an RFI is necessary, we issue a single, itemised written request covering all outstanding items in one communication. We do not issue sequential, piecemeal RFIs. Our target is to resolve any lodgement issues with a maximum of one RFI.
Yes. We accept documentation from any suitably qualified and registered professional. We will advise if there are any additional requirements specific to the project.
Performance solutions are assessed on their merits. We engage directly with your specialist consultant to review the proposed solution, assess whether it meets the performance requirements of the NCC, and determine if an independent peer review is required.
Get in touch
Request a quote
We'll review your project details and get back to you within 24 hours.
Unrestricted certifiers
Your project is reviewed directly by NSW-accredited certifiers - no middlemen.