With over 100 years of construction expertise ...


3rd generation with over 100 years experience as builders

Commercial new builds, extensions & refurbishments

Residential new builds and maintenance services

Government and
Local Council Properties

Health & Educational Services


Accommodation Facilities


Onleys Holdings Pty Ltd is a long standing building business which has provided commercial and residential construction services across the Grampians region including Stawell, Ararat and Hall Gap, Wimmera and Southern Mallee regions.

Our team consists of Project Managers, Financial and Contract Administration staff who are qualified to manage all types of projects. Onleys Holdings have strong relationships across a range of experienced and specialised local subcontractors and suppliers across the region, enabling agile delivery of projects.

For more than 100 years we have serviced:

  • Local councils
  • Private enterprises
  • State Government Departments

Alongside the construction sector, Onleys Holdings also offers a range of accommodation services and farms 1800 acres across the Grampians region of predominately sheep and cattle.

History of Onleys

Onleys Holdings Pty Ltd is a third-generation family-owned company, first established in 1920 by Henry John Onley, a local plumber in the small country town of Donald. The original head office situated at 85 Woods Street; Donald and built by Henry in 1923, is still the home of the business today.

Henry learnt his trade of plumbing having worked for Peter Ganoni who owned a small plumbing business in 1877. Around 1912, the establishment was taken over by Messrs Onley and Bazley, who both learnt the trade on the premises.

They carried on with conspicuous success, enlarging the premises and plant whilst building up connections which extended beyond the confines of the district.

In 1920, Henry become sole proprietor which led to the beginning of Onleys Holdings Pty Ltd.

Onleys Holdings is now owned and directed by Jon Onley. Jon worked alongside his father Tib (Henry) Onley for many years expanding the business together into the commercial construction sector up until 1992 when Tib sadly passed away.

Historical Onleys

Following his grandfather and fathers’ footsteps, Jon continued to grow the company and has since undertaken a range of commercial projects, providing construction and maintenance services to local councils and State Government Departments.


Jon’s children and wife Leanne are also involved in the company across a range of areas, keeping the family tradition progressing for exciting future endeavours ahead.

How can we help?

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Jon Onley

Director/Project Manager

M: 0417 971 868
E: jon@onley.net.au

David Musa

Project Manager

P: (03) 5314 9000
E: david@onley.net.au

Jason Bunn

Financial Administrator

P: (03) 5314 9000
E: admin@onley.net.au

Kerryn Davidson

Project Manager

P: (03) 54971 302
E: kerryn@onley.net.au

Jessie Onley

Contract Project Administrator

P: (03) 5314 9000
E: admin@onley.net.au

Domestic Builder No. CDB-U 49127

Commercial Builder No. CCB-U 63098

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Onleys 65 Year Award