Developer of the Year FinalistNAIOPWA - 2024 Night of the Stars

Our Purpose
Drives Us

Our Purpose

Turning Spaces Into Places™

Our family of companies develops, constructs, and operates amazing places – all to delight our customers and make the community around us more enjoyable now and in the future.

To do that, we are committed to thinking a little differently. We are curious. We ask questions. We value creative innovation, unique perspective, and thoughtful sustainability, which result in remarkable customer experiences.

We work with talented people who create better, long-lasting living and working environments. We think it’s essential to have fun along the way while making everything we touch a little better.

Our Family Of Companies

MainStreet Property Group
MainStreet is committed to forming lasting partnerships in the Cities we develop. For each project, we partner with a top consultant team of experts and local city planners to create unique communities in emerging suburban metropolitan neighborhoods.
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GenCap Construction Corp.
GenCap is a commercial general contractor specializing in design-assist and design-build delivery. Fueling our approach is our team of industry professionals with a depth and breadth of experience in all kinds of commercial construction.
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Insite Property Solutions
Insite creates vibrant communities designed to build connections, foster innovation, and encourage authenticity because we understand that investing in people leads to better opportunities for all.
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Our Guiding Principles

People First
People First

We hire brilliant people who allow our culture to grow. We prioritize the development, safety, and wellness of each other to ensure that we are empowered to express our interests, motivated so our strategies flourish, and positioned to be brilliant every day.

Think Bigger
Think Bigger

We embrace challenges as opportunities to learn and grow. We encourage a growth mindset, allowing us to be innovative and support big, bold ideas. Through active learning and training, we continuously improve to address the details to differentiate ourselves.

Culture of Collaboration
Culture of Collaboration

Our unified goals strengthen us – sharing, innovating, and growing together. While each person, team, and company culture is unique, our superpower lies in our ability to col-laborate towards a common purpose.

Deliver to Customers
Deliver to Customers

We act with thoughtful speed and action to deliver the highest value to our customers. The quality of our work is a reflection of our entire team. We are problem solvers who continually raise the bar to improve our customers' experience.

Positive Impact
Positive Impact

We are stewards of our community with a passion for positively impacting the people and organizations around us. Through charitable efforts, dedication to sustainable approaches, honoring unique perspectives, and equitable practices, we strive to improve everything we touch.

Our Approach Makes A Difference
City Manager - City of Woodinville
MainStreet has been a great development partner to work with. The City had worked for many years to get this complex and very visible project off the ground without success... We regularly work with the development community and MainStreet stands out as incredibly responsive and collaborative. We wouldn’t have got to where we have with our project without a partner that so clearly understands and values the goal of creating a genuinely amazing project.
Brandon Buchanan
City of WoodinvilleCity Manager
President - HAL Real Estate
MainStreet has become a leader on the Eastside for delivering quality development projects that truly enhance the neighborhoods in which they are developed. We have partnered with the MainStreet team on two large projects, and they have worked well with the local municipalities and involved the public throughout the process.
Jonathan Manheim
HAL Real EstatePresident
Co-Founder & Chairman - Hoban Family Office & Coast Group of Companies
I have admired MainStreet Property Group for years. The opportunity to invest in their award-winning projects and see our investments favorably impact communities is both an opportunity and a privilege. I cannot say enough good things about our partnership with [MainStreet].
Tom Hoban
Hoban Family Office & Coast Group of CompaniesCo-Founder & Chairman
Vice President - Grosvenor
From the outset, the team has been professional, transparent and straightforward. The focus on being 'best in class' in the submarket is balanced with pragmatism in managing costs where required, which from an investor's point of view is paramount. We truly value our partnership and look forward to future business opportunities together.
Alex Henderson
GrosvenorVice President
Mayor - City of Kenmore
Kenmore Village is a perfect example of a jointly-developed project that implements a local comprehensive plan. The innovative marketing process and careful joint development of the properties is a model for other smaller communities wanting to encourage economic growth and revitalize their downtown.
David Baker
City of KenmoreMayor
Senior Vice President - WaFd
[WaFd] has worked with the principals of MainStreet Property Group through several business cycles and we consider them to be one of the best operators in the business. If they say they will do something, you can have confidence they will perform.
Thomas R. Pozarycki
WaFdSenior Vice President
Co-Owner - Poquitos
It’s clear there is a deliberate focus on creating an urban landscape that promotes community and builds a neighborhood...
James Weimann
PoquitosCo-Owner
Owner & Managing Partner - Walla Walla Steak Co. & Crossbuck Brewing
Woodinville is the perfect home for our second location with its welcoming community, vibrant wine tourism industry and beautiful, surrounding farmland. We hope our new neighbors enjoy our boots and blue jean-style steakhouse and family-friendly taproom, and we are proud to begin creating new traditions in [the Old Woodinville Schoolhouse].
Dan Thiessen
Walla Walla Steak Co. & Crossbuck BrewingOwner & Managing Partner
City Manager - City of Kenmore
MainStreet has been a phenomenal development partner for the City of Kenmore. MainStreet truly understands and embraces our values and knows the importance of creating great places and spaces that are walkable and special. Thanks to MainStreet’s significant investment, we finally have that sense of a real downtown that our community has long been pursuing.
Rob Karlinsey
City of KenmoreCity Manager
Principal - GGLO
I appreciate the vision that MainStreet had for The Schoolhouse District and happy that we were able to implement that vision in a successful design. Thank you to GenCap for facilitating that design into a beautiful built form (during a pandemic!) and Insite for managing it all. It is a project we at GGLO are all very proud of – thanks!
Beth Dwyer
GGLOPrincipal