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The Best Custom Home Builders in Adelaide

Seven Adelaide builders who design and build one-off homes rather than selling a fixed range off a display village. Most are small enough that you deal with the owners. Six of the seven publish their builder's licence number on their website.

By Joel Bauer, Adelaide, South Australia

Illustrative photo. Photo: Unsplash.

Building a one-off home is a different decision from signing with a volume builder off a display village. You are choosing a small team to work with for a year or more. Most of the seven builders below are small enough that you deal with the owners. HBC Homes, for example, pledges to build no more than 25 homes a year. Claridge Construction takes on 15 to 20 projects a year.

The builders are spread across the metro area, from Unley and Kensington Park to Lockleys and Beulah Park, with one in Kent Town and one in the CBD. Some run display homes you can walk through. Regent Homes has them at St Peters and Oakden. Others, like Craig Linke, have none and work on heritage and architectural jobs, so the right pick depends on whether you want to see finished work first or are building something unusual.

There are a few things to compare between quotes. Ask for a full inclusions list in writing, covering items like ceiling height, glazing and benchtops. A cheaper quote often just leaves things out. Check how the price is set, since HBC Homes and TRIIIA Builders both say they work on fixed-price contracts. Ask what is covered by provisional sums and prime cost allowances, because a low allowance means the real cost lands on you later.

To make the list a builder needed a Google rating of 4.5 or higher from at least 15 reviews, custom or design-and-build homes as its main work and a working website showing its own projects and team. It also needed a currently trading Google listing. Six of the seven publish a builder's licence number on their website. Checking those numbers on the Consumer and Business Services register is still under way, so the builder entries do not show a check date yet. Awards and team sizes come from each builder's own site, so they are their claims. The builders follow.

Check the licence on the CBS register

In South Australia anyone who runs a business carrying out or organising building work for others needs a building work contractor's licence from Consumer and Business Services (CBS). That includes subcontractors. All building work also has to be supervised by a registered building work supervisor, so ask who will supervise your job and check them too.

Most builders print their licence number in the website footer, usually starting with BLD. Search that number or the trading name on the CBS licence register and make sure the name matches the company on your contract. While you are there, check the public assurances register, which lists businesses where there have been official concerns about their work.

Building indemnity insurance and deposits

For domestic building work that needs council approval and costs $20,000 or more, the builder must take out building indemnity insurance in your name. It covers you if the builder dies, disappears or becomes insolvent before the job is finished or before defects are fixed. Defect claims can usually be made up to five years after completion. Work cannot start until you and the council each have a copy of the certificate of insurance.

On contracts of $20,000 or more the deposit should be no more than five percent of the total. A builder can also ask you to pay for things like council approval and soil testing up front. Beyond that, pay only for completed stages when you receive an invoice. A builder asking for a large lump sum before work starts is a reason to walk away.

Fixed price, cost plus and display homes

A fixed-price contract sets the build price before work starts, so the risk of most cost overruns sits with the builder. A cost-plus contract charges you the actual cost of labour and materials plus a margin, which can suit complicated or architectural builds but leaves the final figure open. Two builders on this list (HBC Homes and TRIIIA Builders) say they work on fixed-price contracts. Whichever you sign, read what the price excludes, because site costs and provisional sums are where budgets usually move.

Display homes are useful for judging finishes and room sizes, but they show a builder's upgraded range rather than a base build. A custom builder with no display home is not a warning sign. Ask instead to walk through a recently finished client home and talk to the owners.

Inclusions, provisional sums and variations

Ask for a full inclusions list in writing and compare it line by line between quotes: ceiling height, insulation, glazing, kitchen benchtops, tapware, flooring and driveway. A cheaper quote often just leaves things out. Watch provisional sums and prime cost items, which are allowances the builder estimates for things not yet chosen. If the allowance is low the real cost lands on you later.

Variations are changes made after the contract is signed. Ask how they are priced, whether the builder charges an admin fee on top and whether every variation is signed off in writing before the work is done. Locking in your selections before signing is the simplest way to keep variations small.

The list side by side

No.NameAreaBest forRating
01HBC HomesUnleyOwner-run custom builds with a cap on volume4.8 (115)
02Regent HomesMarleston (temporary office)Family-owned custom builder with display homes to walk through4.7 (146)
03Claridge ConstructionLockleysBoutique custom homes and knockdown rebuilds5 (38)
04Dornford Building GroupAdelaide CBDDesign-and-build homes plus extensions under one roof4.9 (60)
05TRIIIA BuildersKensington ParkFixed-price custom homes with the managing director as your contact4.9 (62)
06Craig LinkeKent TownArchitectural and heritage builds with in-house interior design4.8 (21)
07Clairville HomesBeulah ParkCustom homes managed from concept through council approval4.8 (21)

HBC Homes

Unley. Owner-run custom builds with a cap on volume

HBC Homes was started by builder Scott in 2014 and is run with co-owner Vani, who guides clients through the design stages while Scott supervises on site. The business pledges to build no more than 25 homes a year and says every client pays the same rate regardless of building experience. Good for buyers who want to deal with the owners from first meeting to handover.

  • Founded 2014, owner-supervised builds
  • No more than 25 homes a year (per their site)
  • Fixed-price approach and a six-step process
  • Licence number published on their website
Rating
4.8 from 115 reviews on Google
Visit website

Regent Homes

Marleston (temporary office). Family-owned custom builder with display homes to walk through

A family-owned builder that has been designing and building Adelaide homes since 1991, with in-house designers working alongside the construction team. It runs display homes at St Peters and Oakden, which is handy if you want to see finishes in person before committing to a custom design. Knockdown rebuilds are also on offer.

  • Building in Adelaide since 1991
  • Display homes at St Peters and Oakden
  • In-house design team for custom homes
  • Knockdown rebuild service
Rating
4.7 from 146 reviews on Google
Visit website

Claridge Construction

Lockleys. Boutique custom homes and knockdown rebuilds

Peter Claridge founded the company in 1991 and it is still family-owned. It takes on 15 to 20 projects a year, which keeps the client list small. The site lists several 2025 HIA South Australian awards, including the Renovation/Addition Project $500,000 to $750,000 category. It also says double glazing and high ceilings are included in its homes.

  • Family-owned since 1991
  • 15 to 20 projects a year (per their site)
  • 2025 HIA South Australian award winner
  • Licence number published on their website
Rating
5 from 38 reviews on Google
Visit website

Dornford Building Group

Adelaide CBD. Design-and-build homes plus extensions under one roof

Dornford handles building design, custom homes and home extensions, so it suits people still deciding between building new and extending what they have. Founder Jake started the business as JD Building Works more than ten years ago. Its site says it was named Small Residential Building Business of the Year in 2024 and has completed more than 400 projects.

  • In-house building design and drafting
  • Custom homes and extensions
  • Small Residential Building Business of the Year 2024 (per their site)
  • Licence number published on their website
Rating
4.9 from 60 reviews on Google
Visit website

TRIIIA Builders

Kensington Park. Fixed-price custom homes with the managing director as your contact

A South Australian family-owned builder set up in 2018 by managing director Simon Jadon, who works with each client from design through construction. The site says the team works on fixed-priced contracts and builds new custom homes, existing designs and renovations. A good fit if you want one person you can call throughout the build.

  • Family-owned, established 2018
  • Fixed-priced contracts (per their site)
  • Custom homes, existing designs and renovations
  • Licence number published on their website
Rating
4.9 from 62 reviews on Google
Visit website

Craig Linke

Kent Town. Architectural and heritage builds with in-house interior design

A building and interior design company founded in Adelaide in 2014 by carpenter Craig Linke and Lauren Zwaans. It has no display homes and works on heritage and contemporary homes, with interior designers in the same team as the builders. Its site lists HIA South Australian Home of the Year 2023 among its awards.

  • Founded 2014, building and interiors in-house
  • No display homes, every project designed from scratch
  • HIA South Australian Home of the Year 2023
  • Licence number published on their website
Rating
4.8 from 21 reviews on Google
Visit website

Clairville Homes

Beulah Park. Custom homes managed from concept through council approval

Clairville has been building custom homes in Adelaide since 2004 and is led by director Joe Totani. It manages the whole project, from early concepts and approvals through to the final fittings. Its awards page lists Master Builders Association and HIA wins across a range of contract prices. Its named designs give you a starting point if you would rather adapt a plan than begin from a blank page.

  • Custom home builder since 2004
  • Handles design, approvals and construction
  • Master Builders Association and HIA awards listed on their site
  • Licence number published on their website
Rating
4.8 from 21 reviews on Google
Visit website

Frequently asked

How do I check a builder's licence in South Australia?

Use the Consumer and Business Services licence register, linked from sa.gov.au under Check occupational licence holders. Search by licence number or trading name. The licence number is usually on the builder's website, quote or business card. Make sure the name on the licence matches the business named on your contract.

When does a builder need building indemnity insurance in SA?

For domestic building work that must be approved by council and costs $20,000 or more. The builder arranges and pays for it. Work cannot start until you and the council have each received the certificate of insurance. You cannot take it out if you are building the home yourself.

How much deposit can a builder ask for?

For contracts of $20,000 or more sa.gov.au says the deposit should be no more than five percent of the total. Builders can also ask you to pay for council approval and soil testing before work starts. After that you should only pay for completed work when you receive an invoice.

Is a custom builder more expensive than a project home builder?

It depends on the design and the block. A custom design is drawn for your site, while a project home repeats a standard plan, which can need costly changes to fit a sloping, narrow or oddly shaped block. Get an itemised quote from each builder you are considering and compare the inclusions line by line, not just the headline price.

Do I need an architect as well as a builder?

Not always. Several builders here do the design in-house as a design-and-build service, which keeps one party responsible from drawings to handover. If you already have an architect's plans, ask the builder whether they quote on outside designs before booking a consult.

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