land sub

The Full SWC Submission Package: A Developer’s Checklist for NSW

A Subdivision Works Certificate in NSW certifies the internal private works for a subdivision. The submission package falls into three groups: P1 (Plans), B + CW (Approvals from other authorities) and M (Miscellaneous plans and approvals). This is the subdivision works certificate checklist NSW developers need to lodge a complete package. The SWC sits between…

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house v civil - cc v swc

Construction Certificate vs Subdivision Works Certificate: Which One You Need and When

A Construction Certificate approves building work. A Subdivision Works Certificate approves the civil works that come with a land subdivision. Since 1 December 2019 in NSW, they have been separate certificates. Many projects need one. Some need both. If you are planning a duplex, townhouse, subdivision, or a project that mixes a new building with…

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SWC approved Engineering plans

The 5 Subdivision Works Certificate Conditions NSW Developers Miss Most Often

Five conditions stop a Subdivision Works Certificate from being issued more often than any others in NSW: Section 138 Roads Act approval, service authority approvals, the Long Service Levy payment, dilapidation reports and security bonds, and engineering plan amendments to a construction-ready set. Each one sits between the DA consent and the SWC. Each one…

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OSD UPRCT pic

Dual Orifice vs Single Orifice OSD Tank Design in NSW

A dual orifice on-site detention tank uses two outlets to control discharge across both small and large storms, while a single orifice system relies on one. Dual orifice designs match predevelopment flow rates more accurately across the 20% to 1% AEP range, reduce overflow risk, and align with the Upper Parramatta River Catchment Trust Handbook…

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active NSW subdivision site

Subdivision Compliance Certificate NSW: Inspections and Reports Required

A subdivision Compliance Certificate in NSW is only issued after the Certifier has carried out inspections during construction and reviewed supporting documents verifying that works and materials match the approved design. Without both, the Compliance Certificate cannot be issued, and will hold up the Subdivision Certificate. Subdivision projects involve serious infrastructure. Roads, kerbs, drainage, earthworks,…

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temp OSD basin in growth centre

Why Regional Detention Basins Beat On-Lot OSD in Greenfield Subdivisions

On-site detention OSD in NSW has been a standard condition of subdivision consent since the early 1990s. The idea is simple: detain stormwater on site, release it slowly, and avoid overloading Council's drainage network downstream. In infill areas, where acquiring land for a regional alternative is rarely feasible, on-lot OSD is often the only practical…

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Subdivision half road construction

Half Road Construction in NSW Subdivision: What It Costs and Why It Catches Developers Off Guard

You plan on subdividing your site, the road out front is split down the middle. One half is new: clean kerb and gutter, fresh stormwater drainage, sealed pavement. Your half is cracked asphalt, patched potholes, no kerb, no drainage. That gap is your problem to fix. This is a common scenario in NSW land subdivision,…

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section 68 approved stormwater pipe

Section 68 Approval NSW: What DA Subdivision Projects Get Wrong and How to Avoid Delays

Most subdivision delays do not come from the big-ticket items. They come from consent conditions that get overlooked early and become serious problems at Subdivision Certificate stage. One of the most common is the Section 68 approval under the Local Government Act 1993. It applies when stormwater or drainage works extend beyond the property listed…

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About Southwell Certifiers

Southwell Certifiers Pty Ltd provides independent certification services across New South Wales for Subdivision Works Certificates, Complying Development Certificates, Subdivision and Strata Certificates and Compliance Certificates.

 

Our focus is clear advice, efficient approvals and reliable certification outcomes for developers, engineers, architects, project teams and surveyors.

Contact Info

Southwell Certifiers Pty Ltd provides Dean Dehghan-Khalaji – Registered Certifier (BDC 05320)

admin@southwellcert.com.au

(02) 8734 5676

Sydney NSW

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