Anthony Maschmedt


With more than seventeen years experience building homes in the greater Seattle area, Anthony is an advocate for sustainable design and Net Zero Energy construction. He continues to push the envelope in the built green community with innovative construction methods that have positively influenced city building practices.  As a result of this commitment and effort, Anthony and Dwell have won numerous National, Regional and Local Sustainable and Design Awards. As a lifelong Seattleite, Anthony has a deep commitment to creating communities that bring together like-minded individuals who value sustainability and a modern reclaimed design.

Anthony has served as the Chair on the Board of the MBA’s Built Green Residential Building Program for the last five years.  He serves on the NAHB (National Association of Home Builders) Sustainability & Green Building Subcommittee. 

He is a key member of the Columbia City Business Association and Georgetown Communities,  and is sought after as a thought leader in the national and local sustainable communities to promote and share Dwell Development’s green agenda.

Abbey Maschmedt

Principal / Project Manager

As Design Project Manager at Dwell Development, Abbey is not only focused on selecting home finishes, but more importantly, seeking out rare, reclaimed materials that make each home a one-of-a-kind. Abbey collaborates with local suppliers to incorporate high end products and sustainable materials into every home to reflect a unique design personality.

Recently Abbey received international recognition for efforts in green design. Abbey worked in the building trades for over 20 years before joining forces with her husband Anthony in 2013. Abbey’s design is most inspired by travel. She appreciates the historical architecture found around the world..

Roland Williams

Project Manager / Head of Construction

Roland was an integral part of the Dwell team where he helped build over 80 homes from 2006-2014 before leaving the state and setting out on a new adventure. Happy to return to Seattle, Roland is thrilled to be back. He brings with him an incredible logistics acumen and an eye for detail.

He lives with his wife and two kids on Beacon Hill. He considers himself a foodie and loves to travel the world to experience different cultures. Roland is an avid sports fan and loves to support all Seattle teams. As a competitive athlete himself, he is excited to work on his golf game this Spring..


Ivan Sanchez

Site Foreman

Ivan is a jack of all trades. His work ethic and commitment make him an amazing asset to the Dwell family. He is a master painter and builds a beautiful fence. A part of the team since 2018, his handy work can be seen on more than 20 Dwell homes.

He lives in Columbia City with his wife and children. When he is not hard at work, he enjoys food, music, and dancing.

Gilberto Ojeda Sanchez

Gilberto Ojeda Sanchez


Gilberto is the newest member of the Dwell team, joining us in March of 2022. He comes to us with a ton of experience already under his tool belt. He has expertise in both siding and painting, but there isn’t a job he can’t do.
Gilberto is 28 years old. He loves the outdoors and in his leisure time hikes, but he also knows his way around a dance floor. We are thrilled to have him and looking forward to showing him the sustainability ropes.


Dwell Mascot

Frankie is the Dwell Development official mascot. He is a Boston Terrier and resides in Columbia City, but loves Georgetown for its diverse restaurants and parks. He spends most days cleaning the office floors and napping, but also loves to tour our various projects.



Denise Haugen Williams


Denise brings over 30 years of number crunching experience in multiple industries. A transplant from Oregon she began her career with a local Seattle CPA firm who specialized in construction accounting which helped developed her passion for the construction, and property management industry. Her years of experience and construction knowledge make her uniquely qualified for the challenge of Building green homes that are affordable in a challenging real estate climate, which has become her latest mission.

Tadashi Shiga

Owner, Evergreen Certified

Tadashi Shiga, owner of Evergreen Certified, possesses the knowledge, experience, and determination to help Dwell Development achieve their sustainable building project goals. Tadashi goes beyond mere consultation and works to build systems that create lasting change. With an interest in continual development, Tadashi stays current on all new green building techniques and strategies through regular training and certification.

In addition to Built Green Verifier, he possesses several advanced sustainable building credentials and affiliations including Certified HERS rater, Northwest ENERGY STAR Verifier and US Department of Energy Builders Challenge Partner. He is also the only Passivhaus certifier in Washington State.

Ruthie Senanyake - Ekva Marketing Consulting

Ruthie Senanyake

Marketing & PR

Recently recognized as one of 425 Business Magazine’s 30 under 30, Ruthie Senanyake founded her own marketing consulting firm, Ekva Consulting. She works with businesses of all realms and specializes in social media marketing for clients within the Greater Seattle Area. Based out of Kirkland, WA, Ruthie is a determined, committed marketer who caters her marketing strategies to suit both short and long-term goals.


Office Dog

Lilly is a Miniature Schnauzer who loves to assist her sidekick Frankie in keeping the office lively. Lilly is known for her warm greetings, except to the mailman, and her floor sweeping efforts with her beard. She loves people, especially the ones that give her attention and bring snacks.

Most days her goal is to play with Frankie and get a good nap in.

5221 Lake Washington Blvd. South
Seattle, WA 98118

(206) 683-7595