We treat the Building Code as a starting point, not a finish line. If you're investing $1–2 million in a home your family will live in for decades, it should do more than just pass inspection.
Meeting minimum standards doesn't guarantee your family will breathe clean air, sleep soundly, or feel comfortable year-round. We design for proper ventilation, low-tox materials, and Passivhaus performance — not just what passes inspection.
Before we break ground, Tom maps out every material, trade, and cost in detail. No vague allowances. No surprise variations. You know exactly what you're getting and what it costs before construction begins.
Mitch and Tom personally price your custom home and oversee every detail on site. You're not handed off to supervisors managing thirty other jobs — you work with the people whose names are on your contract.
Every material is specified for long-term performance, moisture management, and your family's health. We build for how your home will feel in twenty years, not just how it photographs on handover day.
Not a project home from a display village. Not "close enough" to what you really want. A home where every room was positioned for how you actually use it — morning light in the kitchen, outdoor living that works for your climate, bedrooms oriented for privacy and rest.
And underneath all of it, a home you can trust. Not wondering what shortcuts are hiding behind the plasterboard. Not worrying about moisture slowly building up in walls you can't see. Just confidence that every material was chosen intentionally, every detail considered, every decision made to protect your family for decades.
Start a Conversation"I honestly couldn't recommend Agathe more highly, they've been absolutely fantastic. … Tom has been outstanding at every stage, proactive, solutions-focused, and always keeping things on track. … Without a doubt, they're the best builders I've worked with."
— Sophia
The PAC Process replaces vague allowances with certainty — every material specified, every trade priced, every cost documented before we touch anything.
The result: no design disappointments, no budget blowouts, no wondering what's happening behind the walls.
Learn About Our ProcessIdeally before you finalise land or plans. We help assess blocks for drainage, orientation, and council restrictions — and work alongside your architect to ensure design is buildable, healthy, and within budget from day one.
Tom leads comprehensive pre-construction planning. Complete material specifications, line-by-line pricing, healthy building integration, realistic timelines. Everything mapped before construction begins so there are no surprises.
Mitch oversees every stage on site with a dedicated project manager. The same people who priced and planned your home are the ones checking it daily. No broken telephone. No vanishing acts.
A thorough walkthrough of every finish, system, and feature — not a quick key exchange. And we don't disappear after handover. If something's not right, call us.
We design for natural airflow and mechanical ventilation that actually works — not minimum exhaust fans that tick code boxes but leave rooms stuffy. Fresh, filtered air throughout your home without relying on open windows.
No polyurethane cabinets off-gassing for years. No toxic paints releasing VOCs into sealed rooms. Every material chosen based on building biology principles that support indoor air quality, not just what's cheapest at the supplier.
Vapour-permeable barriers that let moisture escape instead of trapping it. Wall assemblies designed to stay dry and perform naturally — especially critical in Sydney's coastal climate.
Smart insulation, window orientation, and thermal mass that maintains comfortable temperatures naturally. Passivhaus design means your home performs without fighting the climate with massive air conditioning systems.
"We chose Agathe for our home renovation and couldn't be happier with the result. Mitch and his team are honest, reliable, and take pride in their work, ensuring all our requirements were met. In an industry that's tough to trust, Agathe stands out."
Most families spend $30,000–$50,000 on architectural plans before a builder tells them what's wrong. We get involved early — when changes are easy and your money isn't already committed. The PAC Process ensures your design is buildable, healthy, and within budget before construction begins.
See Our Pre-Construction ProcessAs early as possible — ideally before you finalise land purchase. Mitch and Tom can help assess blocks for drainage, access, council restrictions, and orientation. Once you have land, involve them before architectural plans are complete. Tom's PAC Process ensures your design is buildable, healthy, and within budget from day one — preventing costly redesigns once plans are locked in.
Code is the legal minimum — it doesn't guarantee health or comfort. Building beyond code means designing for proper ventilation (not just minimum exhaust fans), specifying low-tox materials (not just what's cheapest), creating breathable wall systems, and incorporating Passivhaus and building science principles. You get homes that feel right, not just pass inspection.
Tom's PAC Process maps every material, every trade, every cost before construction begins — no vague allowances. You see line-by-line pricing, actual selections (not allowances), and complete transparency. Changes only cost when they genuinely involve extra work.
Mitch and Tom optimise for how your home will feel in twenty years, not just how it looks at handover. Their Passivhaus training, Healthy Home Materials Mastermind certification, PAC Process planning, and direct owner involvement mean you're not getting minimum standards — you're getting homes designed to support your family's health for decades.
Timelines vary based on size and complexity. Typically 12–18 months from starting construction to handover. The design and PAC Process phase adds 3–6 months before construction begins. Tom provides honest timelines upfront — not hopeful guesses designed to win the job.
You're talking directly to Mitch or Tom, not a supervisor who needs approval. If an issue arises, they own it and fix it immediately. No arguments. No excuses. Just direct accountability from the owners whose names are on your contract and who genuinely care about the outcome.
Whether you have plans in hand or are still thinking it through, we're happy to have an honest conversation about your project. No obligation. We'll tell you if we're not the right fit.