Sia Motlagh, founder of Dream House Builders
Civil engineer. Twenty years managing construction projects, from a 40-story tower in Oakland to the single-family homes DHB builds in North Texas today.

Background
Sia founded Dream House Builders in 2022 after ten years with Condon-Johnson & Associates in Oakland, California, where he was project executive on some of the Bay Area’s larger builds: the foundations and shoring for Atlas, Oakland’s tallest residential tower at 13th and Franklin; the Chase Center arena in San Francisco; the Central Subway; Apple’s Campus II visitor center in Cupertino; and the 950 Market and 350 Bush high-rises downtown. Those are tight sites with firm deadlines and a long list of trades to coordinate, and that experience is what he brought to home building.
He runs DHB the way he ran those projects. The plan and the budget are set before the first truck arrives. Materials are bought out before framing so the schedule holds. Subcontractors get a clear scope and get paid on time. Problems are handled the week they appear, not at closing. The result is a home that is finished when promised and holds up after the buyer moves in.
Sia holds a B.Sc. in Civil Engineering and an M.Sc. in Construction Management from the University of Texas at Arlington, where he also did research on underground infrastructure. Before California he spent seven years as a project engineer and manager on power-plant, subway and port work overseas. He is a licensed real estate agent in Texas and California, and lives in the Fort Worth area.
Bay Area projects



Timeline
- 2022 –Founder & CEO, Dream House Builders
Single-family homes in Hood County and North Texas; 50+ delivered.
- 2013 – 2023Condon-Johnson & Associates, Inc. — Oakland, CA
Project Engineer, Project Manager, then Project Executive from 2015. Atlas Tower, Chase Center, Central Subway, Apple Campus II, 350 Bush, 950 Market, Platform 16, Sunnyvale Civic Center.
- 2011 – 2013University of Texas at Arlington
M.Sc. Construction Management; graduate research assistant, CUIRE.
- 2004 – 2011Project engineer and project manager — overseas
Combined-cycle power plants, subway stations and an offshore fabrication yard.
- 2004B.Sc. Civil Engineering
Iran University of Science and Technology.
Training
- Colorado School of Mines — Grouting Fundamentals & Current Practice
- Deep Foundations Institute — annual conferences, Houston and Oakland; Deep Mixing 2015
- United Contractors — Project Management Career Advancement program
- SDC & Associates — Cash Flow, Delay & Disruption Claims
- San Francisco Collaborative Partnering Program — Partnering Fundamentals
- Profound BV, Netherlands — Pile Integrity Testing & Pile Driving Analysis
- UTA CUIRE — trenchless and geotechnical schools, UCT 2012 & 2013
“Siavash has excellent organizational, presentation, and communication skills. He works very well with others to get the jobs done right the first time and without delay. He is detail oriented, hard working, responsive, and diligent in his work. Most of all, he is honest and self-motivated.”
Talk to Sia
Property access, a lot you own, or a question about a home: call or text (972) 623-8116.
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