Is it cheaper to be an owner builder?

You can save on a builder's margin, but you take on full legal responsibility for safety, compliance and standards, a higher risk of delays and budget blowouts, and what is essentially a full-time job managing trades, scheduling and materials. For most homeowners — especially on larger or more complex builds — a licensed builder is the more cost-effective option in the long run.

What does a licensed builder actually take responsibility for?

Compliance and safety, organising reliable trades and established suppliers, and the quality of the work itself — backed by insurances and warranties that protect you long after handover.

Does going owner builder affect resale value?

It can. Some buyers are wary of owner-builder homes, which may affect resale value. It's one of the challenges worth weighing up alongside the time, trade knowledge and risk involved.

What kind of projects do you take on?

Renovations, extensions, new builds, decks and pergolas, kitchens and bathrooms, and granny flats — across Newcastle, Lake Macquarie & the Hunter. Most of our work is in existing family homes: opening up a layout, adding a second storey or a rear extension, or rebuilding the outdoor living space.

Where do we start if we're thinking about a project?

With a conversation, and it costs nothing. Bring whatever you've got — full plans, a rough concept, or just an idea and a budget in mind — and we'll walk through what's realistic, what it involves, and what it's likely to cost. Sharing a ballpark budget early means the design gets developed around it, not the other way round.

Are you licensed and insured?

Yes. Delaney Construction Projects Pty Ltd holds NSW builder licence 369751C and is fully insured. ABN 57 649 015 341, GST-registered since March 2021. You can verify the licence on the NSW Fair Trading register.

Fixed-price or cost-plus — which contract is better?

Both have their place. If your plans and selections are mostly finalised — often the case on a new build — a fixed price can work well. For renovations and extensions, where hidden conditions and evolving decisions are common, we prefer cost-plus: you pay the actual cost of materials and labour plus our agreed margin, with a detailed budget before work begins, fortnightly cost updates, and every invoice and receipt available to you. No inflated "just in case" allowances.

What do you need from us to price the job?

To prepare an estimated cost breakdown and an initial budget we only need architectural plans and engineering plans. Approvals (DA, construction certificate, stamped plans) aren't required at that stage but help, because they show the job can legally proceed. For a fixed-price contract you'd also finalise electrical and lighting plans, cabinetry drawings, fixtures and fittings schedules, and finishes selections.

How accurate is a builder's estimate?

It depends on the detail in your plans. Concept or sketch plans: roughly ±20–25%. Architectural and engineering plans: ±10–15%. Full specifications with item schedules and finishes: within about ±5%, which is usually enough for a fixed-price contract. We also recommend setting aside a 10–15% contingency for hidden issues, upgrades or changes.

Who will actually be on site?

Tobin and his own crew. You deal directly with the builder who quoted the job — not a sales rep who hands you over once the contract is signed.

Can we live in the house during a renovation?

Often, yes — it depends on the scope. We'll tell you straight up whether it's workable, and if it is we plan the staging around it so there's always a usable kitchen or bathroom.

Journal

September 2026 · 3 min read · Delaney Construction Projects

Should you choose a licensed builder or go owner builder?

It's one of the first decisions you'll make, and it shapes everything that follows. Here's an honest look at both paths — what you gain, what you take on, and where each one makes sense.

The Delaney Construction Projects crew standing a timber wall frame on site

Going owner builder

As an owner builder, you take full responsibility for the project — organising trades, scheduling work, sourcing materials, and managing compliance.

Potential benefits:

Save on builder's margins
Have complete control over the process
Gain a rewarding hands-on experience

Challenges to expect as an owner builder

The benefits are real, but so is the workload. Before committing, be clear-eyed about what the role involves:

Managing a build is essentially a full-time job
Requires strong trade knowledge and project management skills
Higher risk of delays, budget blowouts, or compliance issues
Full legal responsibility for safety and standards
May affect resale value if buyers are wary of owner-builder homes

Choosing a licensed builder

Hiring a licensed builder shifts that responsibility to a professional who's trained, insured, and accountable for the quality of the work.

Key advantages:

Peace of mind knowing compliance and safety are handled
Access to reliable trades and established supplier networks
Insurances and warranties that protect you long after handover
Greater efficiency, fewer costly mistakes, and less stress

The trade-off

It costs more upfront, but you're paying for expertise, accountability, and a smoother experience.

Our advice

Every project is different, and there's no one-size-fits-all answer. If you're highly experienced, have the time, and are comfortable taking on significant risk, the owner-builder path can work. But for most homeowners, especially on larger or more complex builds, the safer and more cost-effective option in the long run is to partner with a licensed builder.

At Delaney Construction Projects, we believe your home deserves nothing less than the highest level of care, expertise, and craftsmanship — giving you the confidence that your project will be delivered to the standard it deserves.

Common questions

Is it cheaper to be an owner builder?: You can save on a builder's margin, but you take on full legal responsibility for safety, compliance and standards, a higher risk of delays and budget blowouts, and what is essentially a full-time job managing trades, scheduling and materials. For most homeowners — especially on larger or more complex builds — a licensed builder is the more cost-effective option in the long run.
What does a licensed builder actually take responsibility for?: Compliance and safety, organising reliable trades and established suppliers, and the quality of the work itself — backed by insurances and warranties that protect you long after handover.
Does going owner builder affect resale value?: It can. Some buyers are wary of owner-builder homes, which may affect resale value. It's one of the challenges worth weighing up alongside the time, trade knowledge and risk involved.