Class 2 - Residential
High-Rise Residential Towers
Approvals typically in ~35 days
From DA to OC. On programme. Every time.
"Every week of certification delay increases finance, holding, and pre-sale costs. An RFI missed during design but raised at CC lodgement can cost $15,000–$60,000 on a single project. Programme certainty starts with the right certifier. No.1 Building Services has helped NSW developers eliminate this risk across hundreds of projects."
End-to-End Certification.
Protecting your timeline.
From initial documentation through final settlement, we protect your multi-million settlement timelines.
Feasibility
Early Compliance Review
Identify NCC/BCA compliance issues before DA lodgement to prevent costly redesigns.
CC Stage
Certain Certification
Rigorous assessment ensuring clear compliance for financiers and principal contractors.
Construction
Active Compliance Management
Expert critical stage inspections and swift resolution of site variations.
SETTLEMENT
Occupation Certificate Coordination Aligned to Your Handover Schedule
We coordinate Occupation Certificate requirements with your project completion and handover programme, subject to complete documentation, statutory requirements, and site compliance.
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 DA AND PROGRAMME
You:
Provide your development consent, programme schedule, and design documentation.
We:
Review all DA conditions — including any deferred commencement conditions — identify NCC and documentation compliance risks, assess programme feasibility, and issue a fixed-fee programme proposal with agreed service targets within 48 hours.
PRE-LODGEMENT DESIGN REVIEW
You:
Engage your design consultants to address our pre-lodgement review findings.
We:
Work through design documentation with your architects, engineers, and fire consultant to clear all compliance issues before formal lodgement — eliminating RFI delays.
CC ISSUANCE & CONSTRUCTION START
You:
Finalise all documentation
We:
Issue Construction Certificate. Provide confirmed inspection schedule aligned to your programme. Liaise with your builder on stage inspection protocols.
COMPLETION AND REGISTRATION
You:
Prepare for settlement.
We:
Coordinate Occupation Certificate requirements with the project completion and handover programme. Subdivision, title separation and Land Registry Services matters remain with the owner’s surveyor, solicitor, town planner and relevant consent authority.
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.
Development Consent
DA consent from the relevant consent authority
Detailed Architectural Plans
Full set consistent with the DA consent
Structural Engineering Plans
Certified documentation for the complete structure including basement, podium, and residential tower
BCA Compliance Report
From a registered BCA consultant
Fire Engineering Report
Where performance solutions are proposed
Services Engineering Plans
Hydraulic (fire, domestic, stormwater), mechanical, and electrical documentation
Applicable BASIX documentation
for the residential development, prepared and lodged in the form required for that project.
Geotechnical Report
Required for all multi-storey and basement construction
Survey Plan
Registered survey for the lot(s) comprising the development site
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. Our A1 Unrestricted licence covers Class 2 buildings of any height and scale. We have certified residential flat buildings across Greater Sydney, from boutique four-storey walk-ups to high-rise towers.
Yes. We establish Service Level Agreements with our developer clients, specifying target turnaround times for each certification milestone. Programme-level commitments are included in our engagement agreement.
Yes. We integrate with your project manager, QS, solicitor, and design consultants, providing structured reporting and milestone updates throughout the delivery programme.
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.