kitchen with veined stone waterfall island, timber cabinetry and brass spotlight rail, opus 5, caulfield north

custom home builders, melbourne

designed and built as one

opus formed builds custom homes across melbourne as a single, integrated service: concept, architecture, interiors, landscape, engineering, approvals and construction, held by one team.

design and cost are resolved together, so every decision is tested against method, lead times and live pricing while it is still open, not after the drawings are finished.

a small number of residences at a time, each overseen by its directors, stevie hatz and andrew loucaides.

dining nook with round dark timber table, timber chairs, crystal ring pendant and sheer curtains

how a custom home takes shape

concept

a complete architectural concept for your site, designed by a matched practice and costed as it takes shape; six weeks from discovery meeting to presentation.

design resolution

architecture, interiors, landscape, engineering and services coordinated and documented to the millimetre, with consultants and approvals managed for you.

construction

construction begins within two weeks of building approval; fortnightly site meetings and a digital portal keep you close to the work.

handover

systems commissioned, surfaces finished and the house dossier presented; we remain available beyond move-in.

design and construction, together

residences delivered by our directors.

credentials

registered domestic builder (unlimited), cdb-u 101879.

hia victorian housing awards 2025, winner: opus 4, thornbury.

master builders association excellence in housing awards 2025, finalist: opus 73, middle park; opus 5, caulfield north; opus 4, thornbury.

industry recognition achieved by stevie and andrew prior to founding opus formed.

walk-in robe with dark joinery, a leadlight window and chevron timber floor

questions about building a custom home

how does a custom home begin?

with the concept service: a complete architectural concept for your site, costed as it takes shape and guaranteed buildable within your budget, delivered in six weeks.

what does the concept service cost?

a fixed $9,600 for the entire concept phase. if you commission your residence, the full fee is credited towards your build.

do you design as well as build?

yes. opus formed manages the whole project: concept, architectural design, interiors, landscape, engineering, approvals and construction, with the architecture led by a design practice matched to your brief.

how is the budget protected?

cost and method are calibrated as decisions are made, against actual methods, lead times and live pricing, and the concept is guaranteed buildable within the budget you set.

when does construction start?

within two weeks of building approval, once the design is fully resolved and documented.

start with a concept

every custom home begins with the concept service: six weeks from discovery meeting to a costed architectural concept for your site, guaranteed buildable within your budget.