Your shed, pool, or patio. Approved. Fast. No surprises.

Most residential ancillary structures require building approval. If they don't qualify as exempt development under the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008, they require either a CDC or DA. We confirm the correct approval pathway, manage the paperwork, and can issue your CDC in as little as 5–7 business days.

Building certifier reviewing plans

"Starting a pool, shed, or patio without approval can delay your Occupation Certificate, trigger council action, and cause issues when selling. A quick call to No.1 Building Services before you start can help you avoid it all."

Simple approvals,
done right.

Fast, uncomplicated certification for sheds, patios, pergolas, and retaining walls.

  1. Enquiry

    Eligibility Check

    Tell us what you want to build and where. We'll confirm whether your project is exempt, eligible for a CDC, or requires a DA—at no cost.

  2. Lodgement

    We Handle the Paperwork

    We prepare and lodge your CDC application using your plans and builder's specifications. For most projects, you provide the documents—we handle the rest.

  3. Approval & Build

    CDC Issuance in 5-7 Business Days

    Your CDC is issued so your builder can begin. For pools and spas, we also arrange your pool barrier compliance inspection after construction.

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.

Tell us what you want to build

You:

Call us or complete our online form — describe your structure and its location on your property.

We:

Confirm whether approval is required, which pathway applies, and provide a fixed-fee quote. No cost for this initial check.

Process step

Provide your documents

You:

Send us your site plan (a simple sketch is usually sufficient) and the manufacturer's or builder's product brochure or specification sheet.

We:

Prepare and lodge your CDC application. Manage the assessment process.

Process step

Receive your approval

You:

Pay the agreed fixed fee once your CDC is issued.

We:

Issue your CDC within five to seven business days of receiving your completed documentation. For pools, schedule your barrier compliance inspection.

Process step

Enjoy your structure

You:

Build and enjoy.

We:

Attend your final inspection if required. Issue pool compliance certificate and update the NSW Swimming Pool Register.

Process step

Ready to partner with No1?

Get a fast-tracked quote from a licensed NSW certifier. We're ready to review your next project.

Request a Quote

Select your project type

See the exact documents needed. No guesswork, no endless lists.

Site Plan

A simple plan showing your property boundaries, the proposed shed location, and setback distances

Manufacturer's Specification Sheet or Builder's Plans

Standard product specification showing the shed dimensions, wall height, and materials

Sydney Water Sewer Diagram (if near sewer lines)

Required if the proposed structure is within the exclusion zone of a Sydney Water asset

Missing something? Don't worry — we can help source it.

Start your application

Unrestricted Authority

Our Certification Capabilities

Projects we have certified.

High-rise residential tower certification capabilities

Class 2 - Residential

High-Rise Residential Towers

Approvals typically in ~35 days

Industrial warehouse private building certification

Class 7b & 8 - Industrial

Industrial Warehousing & Logistics

Approvals typically in ~20 days

Roof structure inspection audit

Specialist Building Inspection

Roof Framing & Structural Defect Audit

50+ page report in 24 hours

Subfloor moisture inspection

Water Leak & Damp Inspection

Subfloor Moisture & Water Ingress Detection

Non-destructive thermal scanning

Masonry crack dilapidation inspection

Dilapidation & Structural Audit

Masonry Cracking & Settlement Assessment

Legal third-party sign-off

Custom home Complying Development Certificate capabilities

Class 1 & 2 - Residential

Custom Luxury Homes & Duplexes

CDCs typically in ~14 days

Medical centre fitout private CDC capabilities

Class 5 & 6 - Commercial

Medical Centres & Commercial Fitouts

CDCs typically in ~10 days

Residential swimming pool compliance capabilities

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

It depends on the size, height, and location of the structure. Under the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008, some small structures are exempt from any approval. Others require a CDC or council DA. We confirm which category applies to your specific project at no cost.

We check your site's zoning and CDC eligibility, confirm Sydney Water clearances, review your pool plans, and lodge your CDC. Once construction is complete, we inspect the pool barrier for compliance with the Swimming Pools Act 1992 and register the pool with the NSW Swimming Pool Register.

For new pool construction, the CDC is typically issued within five to seven business days. The pool barrier compliance inspection is conducted after construction is complete - usually within two to three business days of booking.

For existing pools, we inspect the barrier against the applicable version of the standard. If it does not comply, we issue a detailed non-compliance notice specifying exactly what needs to be rectified - no guesswork, no vague instructions.

Yes. We can engage directly with your builder or contractor on your behalf. Many pool and shed builders use us routinely and can manage the CDC process as part of their service.

Get in touch

Request a quote

We'll review your project details and get back to you within 24 hours.

Building certifier inspecting blueprints

Unrestricted certifiers

Your project is reviewed directly by NSW-accredited certifiers - no middlemen.