Part of the How to Build in Australia series | uDrew OnSite: instant site intelligence
Every article in the How to Build in Australia series starts with the same advice: check your property before you do anything else. Before you visit a showroom, request a quote, engage a builder, or spend any time on design, the single most useful thing you can do is understand what your block will and will not support.
That advice is easy to give and historically difficult to follow. Researching planning rules, interpreting overlays, understanding setback requirements, and confirming soil conditions used to require days of manual research, phone calls to council, and often a paid consultant. For many homeowners and builders, the temptation was to skip it and hope the details worked out. They often do not.
uDrew OnSite changes this. Enter a property address and you receive site-specific intelligence covering everything that determines whether a project is feasible on that block, in minutes rather than days.
What is uDrew OnSite?
uDrew OnSite is the site intelligence layer of the uDrew ecosystem. It aggregates live planning, zoning, environmental, and engineering data from authoritative sources and returns it as a clear, usable picture of what is possible on a specific property.
It is not a generic planning map or a static zoning lookup. The data is drawn from live council datasets and updated regularly to reflect current planning controls. What you see reflects the rules that actually apply to your property today, not a general summary of state-level legislation that may or may not match your council area.
Builders using uDrew OnSite report up to 70% faster approval times. The reason is simple: when site constraints are known before design begins, the design is compliant from the first draft. Compliant first drafts do not need amendment rounds. Fewer amendments mean faster approvals.
What does uDrew OnSite tell you?
For any given property address, uDrew OnSite surfaces the information that determines project feasibility and approval requirements. This includes:
Setback requirements
Every council has specific rules about how far a structure must sit from each boundary, from the primary dwelling, and from easements or service corridors. These rules vary significantly between councils and are one of the most common sources of compliance errors when they are not checked upfront. uDrew OnSite returns the setback requirements specific to your property and council, not a state-level approximation.
Planning overlays and zones
Planning overlays add an additional layer of rules on top of base zoning. A property in a bushfire attack level zone requires structures to meet specific construction standards. A heritage conservation overlay may restrict what can be built and how. A flood overlay affects what is permissible at ground level. uDrew OnSite identifies every overlay that applies to your property before design or quoting begins.
Easements and utility corridors
Easements are legally protected corridors on a property that restrict where structures can be built. Sewer easements, drainage easements, and electrical easements are the most common. A pool, carport, or shed positioned within an easement will not receive council approval regardless of how well the rest of the design meets the rules. Identifying easements before design begins prevents one of the most frustrating and avoidable causes of project delay.
Soil classification
Soil type determines footing requirements, site preparation costs, and engineering complexity. Reactive clay soils require more robust footing systems than sandy or stable sites. Properties with a history of uncontrolled fill present additional risk and cost. uDrew OnSite surfaces soil classification data as part of the site assessment, giving builders and homeowners early visibility on the ground conditions they will be building on.
Council approval pathway
Whether a project qualifies for a fast-track Complying Development Certificate or requires a full Development Application depends on a combination of the project type, size, and the site-specific constraints that apply. uDrew OnSite identifies the likely approval pathway based on your property’s specific characteristics, so you know from the outset whether a project is likely to be a two-week turnaround or a two-month process.
How uDrew OnSite connects to each article in the series
Each of the How to Build in Australia guides starts with a site check for a specific reason. The implications of site constraints are different for each project type, and knowing them upfront changes the decision you make at the start of each journey.
Carports and sheds
For smaller structures, the most common site check is setback compliance and exemption eligibility. A carport or shed positioned correctly within verified boundary setbacks may qualify for a faster approval pathway or even a full exemption in some councils. Knowing this before buying a kit saves time and avoids the frustration of purchasing materials for a design that does not comply.
Pools
For pools, the site check determines not just whether the project is feasible, but how it should be designed. Easements restrict pool placement. Slope affects excavation cost and engineering requirements. Overlays may affect fencing specifications. Pool builders using uDrew OnSite create compliant layouts from the first draft and avoid the most common causes of approval delay.
Spas
For spa installations, the site check confirms council requirements and site suitability before a purchase is made. This addresses the most common objection in the spa sales process: ‘I need to check whether I can actually install this on my block.’ uDrew OnSite answers that question at the point of sale.
Granny flats
For secondary dwellings, the site check answers the most fundamental question in the category: can I build a granny flat on this block? Lot size, setbacks, overlays, and floor area ratio all interact to determine feasibility. uDrew OnSite checks all of these in one step, before any design or engineering investment is made.
From site intelligence to compliant design
uDrew OnSite is the starting point of a connected workflow. The site intelligence it surfaces flows directly into uDrew Studio, where builders and designers create site layouts with real-time compliance validation built in. Because the constraints are drawn from verified OnSite data, the design is always working within the rules that actually apply to the property.
From Studio, compliant designs feed into uDrew Connect, where they are presented to clients as interactive visualisations, either through a website-embedded tool or on a touchscreen kiosk at an expo or showroom. The result is a workflow that runs from the first site check through to a signed contract without duplication, manual re-entry, or the risk of a design that was never feasible in the first place.
Who uses uDrew OnSite and how
For builders and installers
Pool builders, landscapers, shed and carport installers, and granny flat builders use uDrew OnSite to check feasibility before quoting. This prevents the most common and most costly scenario in residential construction: committing to a design, preparing documentation, and then discovering a constraint that requires the work to start again.
Builders who run multiple enquiries per week benefit most. Rather than researching each site manually, uDrew OnSite gives them consistent, reliable data for every property in minutes. That consistency also matters for teams: when every staff member uses the same tool to check site conditions, the business produces more reliable quotes and fewer surprises on site.
For spa and outdoor living retailers
Retailers using uDrew Connect Display kiosks at expos and in showrooms use the site intelligence from uDrew OnSite to answer the suitability question at the point of sale. When a customer is standing in front of a spa they want to buy, the fastest way to move the conversation forward is to confirm their property can support it. uDrew OnSite does this in real time.
For homeowners
Homeowners use uDrew OnSite, accessed through builders’ and retailers’ websites, to check what is possible on their property before they make an appointment or commit to a purchase. This changes the nature of the first conversation they have with a builder or retailer. Rather than starting from scratch, they arrive knowing which designs are feasible on their specific block, which questions to ask, and what the approval process is likely to involve.
The bottom line
Every project in the How to Build in Australia series has a different construction process, a different approval pathway, and different site conditions that affect what is possible. What they all share is the same starting point: understanding what your property will and will not support before any other decision is made.
uDrew OnSite makes that starting point accessible, fast, and reliable for every project type, every council area, and every stage of the journey from first idea to signed contract. Check your address now.
Ready to see how it works across your specific project types? Book a demo with the uDrew team.
Frequently asked questions
What does uDrew OnSite actually check?
uDrew OnSite checks setback requirements, planning overlays, zoning controls, easements, soil classification, and council approval pathways for any residential property address in Australia. It draws from live council datasets to ensure the information reflects current planning controls.
How accurate is the information?
uDrew OnSite draws from live, authoritative planning datasets that are updated regularly. It provides council-grade accuracy for feasibility assessments at the pre-design and pre-quote stage. It supports early planning decisions and does not replace formal certification or professional advice for submission-ready documentation.
Does uDrew OnSite work across all Australian states?
uDrew OnSite covers properties across Australia and New Zealand. Coverage depth varies by council area, and the platform is continuously expanded through ongoing data partnerships. Check your specific address to confirm coverage.
How long does a site check take?
Enter your address and results are returned in minutes. The site intelligence report can be reviewed on screen or exported to share with your builder, engineer, or council.
Does uDrew OnSite replace a formal site inspection?
No. uDrew OnSite provides digital site intelligence drawn from live planning data. It is the fastest and most reliable way to assess feasibility before committing to design or engineering. For projects that require a formal geotechnical investigation or physical site survey, those processes remain necessary. uDrew OnSite informs those decisions; it does not replace them.
Who can use uDrew OnSite?
uDrew OnSite is used by pool builders, landscapers, spa retailers, granny flat installers, shed builders, home builders, and design professionals. Homeowners access site intelligence through builder and retailer websites that use uDrew’s tools.
More in the How to Build in Australia series:
- How to Build a Carport in Australia → https://www.udrew.com.au/how-to-build-a-carport-in-australia/
- How to Build a Pool in Australia → https://www.udrew.com.au/how-to-build-a-pool-in-australia/
- How to Install a Spa in Australia → https://www.udrew.com.au/blog/how-to-install-a-spa-in-australia/
- How to Install a Granny Flat in Australia → https://www.udrew.com.au/blog/how-to-install-a-granny-flat-in-australia/
- How to Build a Shed in Australia → https://www.udrew.com.au/blog/how-to-build-a-shed-in-australia/
