The pre-site phase is the most misunderstood part of building a home. It is the period between signing a building contract and construction starting on site. Nothing visible is happening. No excavation. No concrete. No frame going up. And for many clients, that silence creates anxiety.
The reality is that the pre-site phase is one of the busiest periods in the entire build. Your builder, engineer, surveyor, and draftsperson are all progressing critical work that must be completed and approved before a single scoop of dirt is moved. If any of these steps are rushed, incomplete, or poorly coordinated, the consequences show up later in the build as delays, cost blowouts, or design problems that cannot be undone.
This guide explains every element of the pre-site phase for a new home build in Victoria, how long each step takes, why the process feels slower than expected, and how Senka communicates throughout to keep you informed and confident.
What Is the Pre-Site Phase?
The pre-site phase covers every piece of work that needs to happen after the building contract is signed and before the builder can begin physical construction on site. In Victoria, this includes engineering assessments, soil testing, building permit applications, the production of working drawings, developer approvals, authority connections, and client selections.
It is a sequential process. Most steps depend on the one before them. You cannot submit a building permit application without engineering drawings. You cannot finalise engineering without a soil and contour report. You cannot produce working drawings without knowing the structural system the engineer has specified. Each piece feeds into the next.
For a standard house and land build in Melbourne, the pre-site phase typically takes 8 to 16 weeks. That range reflects the variability in council response times, developer approval processes, and how quickly decisions are made along the way. Complex sites, overlays, or developer requirements at the longer end. Straightforward lots in established estates at the shorter end.
Understanding the seven stages of building a home gives you context for where pre-site fits in the overall timeline. It is Stage Zero, and it is where the foundations of a successful build are laid, long before the physical foundations.
Engineering and Soil Reports
Two reports are commissioned immediately after contract signing: a geotechnical (soil) report and a contour and feature survey.
The geotechnical report classifies the soil on your lot. In Victoria, classifications range from A (stable sand and rock) through to H2 (extremely reactive clay). Melbourne’s western and northern growth corridors are predominantly H1 and H2. This classification directly determines the slab design, footing depths, and steel reinforcement.
The contour and feature survey maps the lot’s topography, services, easements, and boundary positions. This information sets the finished floor level, drainage design, and setback compliance.
Once both reports are received, the structural engineer designs the footing system. Reactive soils require deeper edge beams and more reinforcement, meaning higher site costs. Stable soils allow a simpler, less expensive slab.
How long this takes: Two to four weeks total. Soil testing completes in one to two weeks, with engineering design following.
Why it matters: A slab designed for the wrong soil class is not a minor error. It is a fundamental one that leads to cracking and structural movement years after handover.
Building Permit Application
The building permit is the legal authorisation to construct the home. In Victoria, it is issued by a registered building surveyor and confirms compliance with the Building Act 1993, the Building Regulations, and the National Construction Code.
The application includes architectural plans, structural engineering, an energy assessment (minimum 7 star NatHERS rating), soil and contour reports, and any relevant overlays or covenant requirements. The surveyor reviews the full package and issues requests for further information if anything is missing or non compliant.
How long this takes: A straightforward permit can be issued in two to three weeks after submission. Permits involving council referral or restrictive covenants commonly take four to six weeks.
What can slow it down: Incomplete documentation. If the energy assessment has not been finalised, or the engineering does not match the architectural plans, the entire application stalls. Coordination between the architect, engineer, and energy assessor matters as much as the quality of each individual document.
Working Drawings and Selections
Working drawings are the detailed construction documents that translate your approved floor plan into a buildable set of instructions. They include dimensions for every wall, ceiling height, window size, door position, service location, and structural connection. They are the drawings the trades work from on site.
Producing working drawings requires the floor plan to be finalised and all client selections to be confirmed. This means:
- Internal and external colour selections (paint, tiles, benchtops, tapware, carpet, flooring)
- Electrical layout (power point positions, light switch locations, data points)
- Plumbing layout (tap positions, basin locations, toilet positions)
- Facade material selections
- Any upgrades or variations agreed before construction
At Senka, selections are completed through a structured colour consultation process. This is a dedicated session where you work through every internal and external finish with guidance on how selections interact. The process is designed to avoid the two most common problems: decision fatigue and selections that look good individually but do not work as a complete palette.
How long this takes: Working drawings typically take two to three weeks once selections are locked in. If selections are delayed, the working drawings cannot progress, and the permit application cannot be finalised. This is one of the most common bottlenecks in the pre-site phase, and it is entirely within the client’s control.
Why it matters: Every selection you make before construction starts is dramatically cheaper and simpler than changing it during the build. Once the slab is poured, plumbing positions are fixed. Once the frame is up, electrical runs are in the walls. The working drawings stage is your last opportunity to make changes at minimal cost. For a guide on which selections must be locked in early, see our article on now or never inclusions.
Developer and Authority Approvals
If you are building in a new estate, there is an additional layer of approvals that sits between the building permit and the start of construction.
Developer design guidelines. Most estates in Melbourne have design guidelines or covenants that control facade presentation, material choices, colour palettes, fencing styles, and landscaping standards. Your home design and facade must be submitted to the developer for approval before construction can begin. Some developers review and approve within a week. Others have monthly committee meetings, meaning a submission that misses the deadline waits an additional four weeks.
Authority connections. New lots in developing estates require connections for sewer, water, stormwater, gas, electricity, and telecommunications. In many cases, these services are not yet live at the lot when your build is ready to start. The builder must coordinate with the relevant authorities (Melbourne Water, the electricity distributor, gas provider) to ensure services are available.
Council requirements. Depending on the lot and the municipality, there may be additional council requirements such as vehicle crossover permits, stormwater management plans, or tree protection conditions. Each of these is a separate process with its own timeline.
How long this takes: Developer approvals can take one to four weeks depending on the estate and the review cycle. Authority connections vary significantly. In well established estates, services are ready. In newer stages, connections can take several weeks to be activated.
What can slow it down: Developer amendments are the most common delay. If the design review comes back with required changes to the facade or materials, those changes need to be made, the plans updated, and the amended design resubmitted. Each cycle adds time.
Why Pre-Site Takes Longer Than You Expect
Clients consistently underestimate how long the pre-site phase takes. There are several reasons for this.
Sequential dependencies. The pre-site process is a chain, not a list of parallel tasks. Soil testing happens first. Engineering follows. Permit documentation follows engineering. Each step depends on the one before it, and a delay at any point pushes everything downstream.
External parties. Your builder does not control the building surveyor’s workload, the developer’s review schedule, or the council’s response time. During peak periods, these timelines extend further.
Client decisions. Selections and approvals require client input. If a colour consultation is postponed, the working drawings cannot be finalised and the permit cannot be submitted. A two week decision delay often becomes a four week construction start delay.
Plan changes. Any change to the floor plan after the contract is signed requires re-engineering, updated drawings, and potentially a new building permit assessment. Small changes feel small, but each one touches multiple documents and multiple professionals.
A realistic expectation for the pre-site phase on a standard house and land build in Melbourne is 8 to 16 weeks. If your builder quotes four weeks, ask how.
How Senka Communicates During Pre-Site
The pre-site phase is where most builders lose client confidence. The contract is signed, the deposit is paid, and then silence. Trust erodes before a single brick is laid.
At Senka, we have designed the pre-site process on every new home build around closing that gap.
Structured updates. After contract signing, we set out the pre-site steps with estimated timelines. As each milestone is reached, you are updated directly by the person coordinating your build, not by an automated system.
Proactive flagging. If a step is taking longer than anticipated, we tell you before you need to ask, with context and an updated timeline. Silence is never the answer.
Decision support. During selections, we guide you through every choice with context on how it affects the home. Every week of indecision during selections is a week added to the pre-site timeline.
Single point of contact. You deal with one person throughout. You know who to call, they know your project, and you never need to re-explain your situation.
Frequently Asked Questions
What is the pre-site phase of building a house?
The pre-site phase is the period between signing a building contract and construction beginning on site. It includes soil testing, engineering design, building permit applications, working drawings, client selections, developer approvals, and authority connections. For a standard new home build in Melbourne, it typically takes 8 to 16 weeks.
Why does pre-site take so long?
Pre-site involves sequential steps where each one depends on the completion of the one before it. Soil testing must happen before engineering. Engineering must be completed before permit submission. The permit must be assessed before construction can start. Multiple external parties, including surveyors, councils, and developers, each operate on their own timelines. Client decisions on selections also directly affect the pace.
What is a geotechnical report and why do I need one?
A geotechnical report classifies the soil on your lot by testing bore samples. The classification determines how the slab and footings are designed. In Melbourne, many sites have reactive clay soils that expand and contract with moisture. Without an accurate soil report, the slab could be under designed, leading to cracking and structural movement after the home is built.
Can I speed up the pre-site process?
The most effective thing you can do is make selections promptly. Delayed colour selections are one of the most common causes of extended pre-site timelines. Responding quickly to any requests for information from your builder also helps. The steps involving external parties, such as permit assessment and developer approvals, are largely outside your control.
What is a building permit and who issues it?
A building permit is the legal authorisation to construct the home. In Victoria, it is issued by a registered building surveyor, either a private surveyor or a municipal building surveyor. The surveyor reviews the proposed design against the Building Act, Building Regulations, and National Construction Code to confirm compliance before issuing the permit.
When should I start worrying about delays during pre-site?
If more than 12 weeks have passed without a building permit being issued, ask your builder for a specific update on what is outstanding and what the revised timeline looks like. Delays are common, but you should always know the reason and the expected resolution date. At Senka, we communicate delays proactively so you never need to chase.
What happens after the pre-site phase is complete?
Once the building permit is issued and all approvals are in place, your builder schedules the construction start date. The first on site activity is site preparation: clearing the lot, setting out the slab, and beginning excavation. From this point forward, the build follows the standard construction stages through to handover.
