Building a new home is something most people do once. Most clients can picture the finished house perfectly, but it's everything in between that's a blur, and that's usually where the stress comes from.

A build moves through a set sequence of stages, each with its own start and finish, its own progress payment, and its own decisions that need making before the trades show up rather than while they're standing around waiting. Knowing where you sit in that sequence, and what's being asked of you next, is most of what separates a build that feels manageable from one that feels overwhelming.

This article walks through each stage of a Peninsula build, what happens during it, and what you need to have settled before it begins.

Site Preparation and Base

The site gets cleared and set out, then excavation, cut and fill, services, drainage and the slab or footings go in.

This stage is more unpredictable than people expect. Sloping blocks need extra retaining and earthworks. Sandy coastal soils and reactive clays need different footings, which is why the soil report matters so much. Narrow coastal streets can limit truck and excavator access before a single machine turns up. It's also the stage most exposed to weather, since a wet winter can hold up earthworks and pours in ways that later stages simply don't feel.

Settle by now: the engineering and site plan, completely. Changes at this point are the most expensive you can make, because they ripple through everything that follows.

Frame

The frame goes up and the house stops being a drawing. Walls, floor structure, roof trusses. Clients tend to enjoy this stage most, because progress is visible daily and the rooms finally feel real-sized rather than abstract dimensions on a page.

It's also the last easy window for certain changes. Moving a window or a doorway is straightforward while it's still timber, but once services are run and cladding is on, it becomes a demolition job. A frame inspection happens before the build proceeds, with services rough-in to follow once the roof is on.

Settle by now: window and door positions, and any structural changes you're still weighing up. Walking the frame with your builder is the best way to sense-check room sizes and openings against the plan.

Lock-Up

Roof on, windows and doors in, cladding or brickwork complete. The building is sealed and weathertight.

This matters more on a coastal site than an inland one, since everything inside is exposed to salt air and driven rain until the envelope closes. It's usually the largest single progress payment in a standard contract, which is worth knowing when you're planning lender drawdowns.

Lock-up is also when we walk the house with you for the electrical layout, once the roof is on and before the plaster goes up. Every power point, switch, light, data point and appliance position gets marked up on site, room by room. Standing in the actual space beats reading it off a plan, and it's the last comfortable point to move anything before the walls close in.

Settle by now: your electrical plan in full detail, along with external colours, cladding, roofing and window finishes. Internal selections should be final or close, because the next stage burns through them fast.

Fixing and Internal Fit-Out

The longest stage, the least photogenic, and the one where the house starts feeling like a home. Insulation, plasterboard, cornices, skirting, architraves and internal doors, then joinery, tiling, benchtops, painting, and finally tapware, fixtures and appliances.

The sequencing here is tight and unforgiving. Joinery takes weeks to measure and manufacture, so it's ordered well ahead of when it's needed. Tiling happens before some jobs and after others. Painting comes in waves rather than all at once. One delayed selection can leave several trades idle and push the programme out well beyond the length of the delay itself.

Settle by now: everything. Tiles, tapware, joinery finishes, handles, benchtops, paint, flooring, lighting. Late selections are the single biggest cause of delay we see, and they are entirely within the client's control.

You can see this stage in action on some of our current projects.

Practical Completion and Handover

The house is finished and ready to live in. You walk through it with your builder, a defects list is compiled and worked through, certification is issued, and the keys change hands

Take the walkthrough seriously. Open every cupboard and drawer, run every tap, test every switch. Small things are far easier to sort now than in six months, and the walkthrough is there precisely so they get picked up.

You should leave with your certificate of occupancy, warranties, appliance and system manuals, and details of your defects liability period. That period isn't a formality. It's your window to flag anything that shows up once you're actually living in the house, and the Victorian Building Authority's guide to standards and tolerances sets out what's reasonable to expect from a finished build.

What Actually Determines How Long It Takes

Build time on the Peninsula depends on the site more than most people expect. A flat, sewered block with easy access behaves nothing like a sloping site with retaining, tricky access and a complex roof.

The biggest factors are design complexity, the site conditions locked in at the start, weather during earthworks and lock-up, and how quickly the client makes selections. That last one is the factor you actually control, and the one that most often eats up time. A decision left unmade for three weeks doesn't cost you three weeks. It costs three weeks plus whatever it takes to get that trade back on site.

How We Manage the Process

At TEMSEA, we spend the time to get the detail right at the start, but we understand that some things may still change along the way. We prioritise communication and involvement with our clients so we have every chance of catching every detail, while staying as organised and efficient as possible.

In practice that means flagging decisions before they become urgent, walking the house with you at the points where it matters, and being straight with you about where the programme stands. A builder who tells you what's coming takes most of the stress off the table.

It's worth asking any builder you're considering how they keep you in the loop and how far ahead they flag selections. Our guide to choosing a custom home builder covers what else to ask, and our pre-construction checklist covers what needs resolving before any of this begins.

Build With TEMSEA on the Mornington Peninsula

TEMSEA Building Group has delivered new homes, extensions and renovations across the Peninsula, from Blairgowrie through to Red Hill and Dromana, with the coastal site knowledge and trade relationships that a build in this region demands. Builders registration number CDB-U 75101.

If you're planning a new home on the Peninsula and want to know what the process looks like on your site, get in touch.

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