High-rise compliance. BCA Class 2–9 certifications.
"We were building a 5-storey mixed commercial tower and our certifier backed out due to height class limitations, stalling our structural sign-off. No1 stepped in as the replacement PC, reviewed the structural drawings, and issued the CC in 7 days."
Multi-storey office towers, apartment blocks, schools, and public buildings require unrestricted registration (Class 1 to 10) to sign off. No1 Building Services brings deep expertise in complex structural, fire engineering, accessibility, and egress compliance.
- NSW Unrestricted Certifiers authorized for buildings of any height or size
- Coordination under the Design and Building Practitioner (DBP) Act for Class 2
- Fast-tracked CC reviews and staged Occupation Certificates (OC)
Eligibility Check
High-rise & Public Building requirements
Select all that apply to your project.
You missed a few requirements.
Based on your selection, your project might require an alternative approval pathway (like a DA). You are missing:
- Accredited for Class 2 to 9 buildings with unrestricted height
- Design complies with NCC Volume 1 building codes
- Access & mobility AS 1428 compliance is satisfied
- Fire engineering performance solutions are documented
Don't worry, we've got you.
Our experts can counsel you on alternative pathways and guide you through the process. Call us immediately for a free consultation.
Call 0421 936 489Unrestricted
certification timeline.
Tailored to high-rise and staged commercial builds.
Day 1
PC Appointment
Appoint No1 as Principal Certifier via the NSW Planning Portal.
Days 1–10
BCA & Structural Audit
We verify structural engineering, fire engineering, access compliance, and mechanical designs.
Days 10–15
CC Issued
Construction Certificates issued to allow structural stages to begin on-site.
Construction
Progress Audits
Critical stage inspections conducted at mandatory intervals (steel, fire containment, concrete).
Handovers
Staged OC / Final OC
We issue staged Occupation Certificates to allow progressive tenant move-ins.
Have a question about the process? Call us - we're happy to walk you through it.
Scope of Works
Unrestricted Certification Services
Comprehensive Class 2–9 building certification and compliance auditing tailored for commercial and industrial developments.
Construction Certificates (CC)
Full NCC/BCA assessment and issuance of Construction Certificates for DA-approved commercial builds.
Ready to get started?
Get a fast-tracked quote from a licensed NSW certifier. Most clients hear back within 2 hours.
Select your project type
See the exact documents needed. No guesswork, no endless lists.
Approved DA & Consent
Council stamped plans and conditions of consent.
Design Practitioner Declarations
Mandatory for Class 2 multi-storey under NSW DBP Act.
AS 1428 Access Assessment
Certifying public egress and disabled accessibility.
Fire Safety Schedule
Detailing essential fire protection measures.
Missing something? Don't worry — we can help source it.
Start your applicationWhere We Provide This Service
No.1 Building Services provides fast, unrestricted certification across the following regions. Explore our interactive coverage map.
Multi-storey & Public Buildings FAQs
A Building Surveyor-Unrestricted certifier can assess a broad range of building classes, subject to NSW registration, insurance and statutory appointment requirements.
Accessibility is assessed against the applicable NCC requirements and relevant access standards, including AS 1428 where required.
For Class 2 and other DBP Act projects, we review required practitioner declarations and supporting documents before certification.
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.