In 1998, Graeme Street found himself with over 20 years of domestic and commercial construction experience comfortably under his belt, but with a burning desire to build on this knowledge, challenge the status quo and develop industry best practices. So, from his re-purposed garage office in Sydney, Graeme established the Streetbuild brand. With his innate attention to detail, strong business ethics and admirable reputation, Streetbuild quickly landed its first project with one of Australia’s largest retailers – Woolworths.  

From such humble beginnings, Streetbuild quickly established a thriving reputation that saw it expand across states to open a second office in Queensland in 2008. Fastforward to today, Streetbuild is now a trusted construction partner across retail, education, hospitality, commercial and industrial projects servicing seven states with projects ranging from small refurbishments to multi-million dollar builds.

“I have always strived for better. That has been the core attribute of our sustained success over the last 20 years.
That is the Streetbuild way.”

- Founding Director, Graeme Street




We firmly believe that our integrity has been one of the most crucial elements of our 20+ year success: setting the foundation of each client relationship and enabling us to become the trusted partner of over 30 organisations across Australia.


We seek to recognise and understand the unique challenges, needs and perspectives of all stakeholders. Our process ensures each project is designed and developed with the purpose in mind from the very beginning. This equates to happy customers which is our greatest measure of success.


Building something new should be exciting! We thrive in environments where our clients, team and wider stakeholders feel engaged. We find satisfaction in producing beautiful and functional projects for our clients and in being able to celebrate in their success.


Passion is the first step towards excellence. We are determined, resourceful and uphold the highest levels of safety and construction best practice while also executing state-of-the-art design that has a true impact for our client’s and their customers.



Streetbuild was born out of an unwavering desire to achieve the highest level of success for each client, no matter what that may look like for them. This is why Streetbuild was established as a service business first, and a construction company second. This philosophy has guided our team through every day of our 20+ year history and will remain so for each day to come.

The breadth of our experience and resources enables us to offer a seamless construction process, managing projects from consultancy through to design, construction and fit-out for both new and refurbishment projects, all while adhering to the highest level of safety policies and procedures.

Estimating & Project Cost Modelling
Design Solution Consulting
New Construction, Refurb and Fit-out
WH&S Risk Management.



Graeme Street

Founding Director

After a successful and diverse construction career spanning 20 years, Graeme founded Streetbuild in 1998 and continues to guide the team through its growth.

Tim Gagen

Managing Director

A well respected and proven leader, backed by over 20 years’ experience in the building industry, Tim now oversees the entire Streetbuild team.

Rimon Ayoub

National Estimating Manager

Managing the national estimating team, Rimon coordinates tenders and works alongside key stakeholders for the successful delivery of all projects.

Steve Winchester

National Construction Manager

As National Construction Manager, Steve’s acute attention to detail and a drive to deliver optimal outcomes ensures each client achieves their highest levels of success.  

Cameron Morrison

State Manager – WA

Cam brings his extensive construction knowledge and innate ability to build and nurture lasting relationships to lead the Streetbuild team on the west coast.

Julie Smith

Chief Financial Officer

With over 25 years’ experience, Julie oversees Streetbuild’s commercial performance by deriving valuable insights from data to initiate strategic financial plans.

Ryan Lotz

Senior Project Manager – NSW

Responsible for overseeing the delivery of all projects across NSW, Ryan coordinates the entire construction process to ensure a seamless experience for all clients.



A career in construction can be filled with opportunities to sharpen your problem solving, negotiation, time and people management skills. However, to do so effectively, you also need an environment which encourages you to learn and challenge the status quo. That’s where we come in. 

With an average tenue of 5 years, Streetbuild is well above the 3-year national average, accredited not only to the environment that we’ve created for our team, but they themselves which have cultivated and upheld our culture.  

We are passionate about developing our team with direct access to mentoring from our senior and executive management, including our Founding Director Graeme Street. 

To view and apply for the latest vacancies, check us out on LinkedIn or submit your Cover Letter and Resume via careers@streetbuild.com.au

Graeme Street

Founding Director

In 1998, after a successful and diverse domestic and commercial construction career spanning 20 years Graeme founded his own business, Streetbuild.

From day one, Graeme’s attention to detail ensured that business was constructed on the foundations of quality service, industry best practice, strong business ethics and an unwavering desire to go the extra mile for all stakeholders.

To this end, Graeme’s focus was to establish Streetbuild as a trusted employer and business partner – something he is proud to have successfully achieved with 25 staff that uphold these same values and over 30 construction partner organisations across Australia.

After leading the Streetbuild team as Managing Director for 20 years, in July 2019, Graeme handed the batten to Co-owner, Tim Gagen who has since shouldered the overall management and commercial direction of the business.

Graeme has now taken a more ‘helicopter view’ of the business, remaining as Founding Director & Secretary and Board Members, playing an advisory role in the areas of compliance and business practices.

With the commercial management of the business taken care of, Graeme now has the opportunity to pursue his passion for developing the Streetbuild team and providing mentorship to staff covering everything from construction expertise to business acumen. This process has been instrumental in providing a pathway to meet the short and longer-term aspirations.

Graeme continues to derive great satisfaction and pride in the ongoing development and expansion of the Streetbuild business and the people that make it happen in the STREETBUILD WAY.

Tim Gagen

Managing Director

“Backed by over 20 years in the building industry, Tim now leads Streetbuild’s team of experts in the design and construction of all projects. Testament to the strong relationships he has established with satisfied clients, architects, external project managers and sub-contractors, Tim is a highly respected figure in the industry.

A proven leader, Tim’s success lies in his ‘hands-on’ management approach. This allows him to not only guarantee the highest levels of workmanship and materials for each project, but also ensures the best experience for each client through honest, efficient communication and project adaptability. Tim takes the time to understand the goals and expectations of each client and works closely with them to identify solutions that meet the aesthetic, functionality and durability needs of each project.

Having worked and learnt under strong mentors himself, Tim understands the value of providing strong leadership, and coaching his own staff members. Tim has a natural ability to develop and strengthen both individuals and management teams to maximise an individual’s potential, and using this to drive the company’s success.

Tim’s leadership style has resulted in a deeply loyal, inspired and effective team.

Based in our Brisbane Office, his responsibilities include: business development, overseeing the estimating department and project management of several construction and refurbishment projects nationally. Tim also provides assistance and advice to Streetbuild’s site supervisors on all areas of construction, WHS and contractor management.

Rimon Ayoub

Chief Estimator

With over 18 years of commercial construction experience, Rimon joined the Streetbuild team back in 2019.

Managing the national Estimating team, Rimon is responsible for the coordination and collation of tender packages for client submission, project cost management and monitoring the project budget. He works alongside key stakeholders to ensure the delivery of all projects meet cost, quality, time, and client objectives.

Working with the State Managers and Directors, Rimon ensures that company targets and objectives are met at every level.

Steve Winchester

State Manager – QLD

As a highly motivated, goal orientated, and process driven leader, Steve’s focus is on driving collaboration within project teams to achieve optimum project outcomes for each and every client.

Managing the Queensland construction team as State Manager, Steve instils his acute attention to detail, quality and safety into each team member. This has resulted in an unwavering track record of successful commercial, retail, industrial and residential construction and refurbishment projects.

Cameron Morrison

State Manager – W.A

As State Manager, Cameron has established Streetbuild’s WA presence and manages the day-to-day resource and project management of all projects on the west coast. This has enabled the Streetbuild brand to continue to gain traction and expand the business nationally.

Having built extensive knowledge of the construction industry across a 20+ years career, he prides himself on his ability to establish and maintain long term secure relationships with clients, contractors, and staff to build loyalty, communication and trust.

Julie Smith

Chief Financial Officer

Julie is a Chartered Accountant with over 25 years’ experience advising business. With a background in professional services, Julie has worked with businesses across a variety of industries at every stage of business to consult on their future plans, execute new ideas and develop strategies that drive business growth.

Her main area of focus is applying data analytics to get behind the numbers and provide insight to help our business and clients. In her role at Streetbuild, Julie enjoys working with colleagues across all areas of the business to assist in delivering for our clients.

Ryan Lotz

Senior Project Manager – NSW

As a loyal Streetbuild team member, Ryan has moved through the ranks, commencing his career back in 2011 as a Contract Administrator, before progressing into a Project Manager role. Now, Ryan is part of the Executive team as the Senior Project Manager for NSW.

With a Bachelor of Construction Management under his belt, Ryan has proven invaluable in the delivery of major projects with an untiring drive to deliver successful outcomes for each and every client.

Herman Monserrat

Financa & Administration Manager

As a qualified Accountant with 13 years’ experience across a large number of organisations and industries, Herman manages the Finance and Administration function at Streetbuild.

His strengths lie in project cost management, financial management, forecasting and reporting and his meticulous work ethic and financial management mastery make him an invaluable asset to the Streetbuild team.

Talk to our friendly team

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Woolworths Wollongong eCOMM Expansion

To keep up with ever evolving retail customer needs, Woolworths Group partnered with Streetbuild to erect a new online shopping collection point. The project featured Australia’s first fabric awning, as well as modifications to the loading dock and back of house area to ensure the smooth processing of this new service.

Woolworths Wollongong eCOMM Expansion

To keep up with ever evolving retail customer needs, Woolworths Group partnered with Streetbuild to erect a new online shopping collection point. The project featured Australia’s first fabric awning, as well as modifications to the loading dock and back of house area to ensure the smooth processing of this new service.

Kmart Perth New Store Fit-Out

Over 8 weeks, Streetbuild converted this retail space into a brand new Kmart store. The project began with demolition and removal of existing fit-out which was then replaced with a new store front, upgrade to all internal fittings and relocation of service facilities.

Woolworths Oran Park eCOMM Expansion

During the height of the COVID-19 pandemic lockdown, Streetbuild were appointed to construct a new online shopping collection point for Woolworths Group to help facilitate and evolve with rapidly changing customer needs. the changing customer needs. This project included the construction of a new canopy, office, cool room and back of house space.

Big W Blacktown Refurbishment

Streetbuild were engaged to transform this outdated Big W store under the Australia wide Renewal 2.0 initiative. The refurbishment included demolition and modifications to the existing store, installation of new flooring, paint refresh and upgrades to service areas and back of house facilities.