9428 Westgate Rd.
Oklahoma City, 73162

(405) 314-0126 Showroom / Office
Fax: (405 246-9110)


About Us

MSC has stood the test of time. We started doing business as "Leonard Construction" over 30 years ago. DC Leonard, Founder, did his first complete home addition in 1972 at age 19. This house is located in Midwest City, OK and is still in use today. It was shortly after this job that DC decided to make a business using his incredible talent and enjoyment for construction. He built the business around innovative design, quality craftsmanship and affordability.

During DC's career in the construction company he felt a calling to join the fire department and followed it with the Midwest City Fire Department. The demands of the fire department along with a thriving construction company became extremely taxing so Adam Leonard, DC's son, became a partner in the family business. Adam partnered Leonard Construction for the better of 10 years and even joined the Oklahoma City Fire Department to let the family legacy continue.

Since then DC has retired the fire department and also the construction company after many years of dedicated service. Adam still operates the company with the same credible attributes of innovative design, quality craftsmanship and affordability. The name Mustard Seed Construction (MSC) was adopted and registered in 2007.

The responsibility of carrying out this legacy is truly a blessing. We uphold integrity, pride and respect in every job and in every business transaction. Our customers and suppliers alike are important to our business. At the end of the day we want to reflect back and confirm we conducted business well.

MSC is licensed, insured and experienced. What this means to you is that we care enough about you and your property to keep our license, General Liability Insurance and Workman's Compensation Insurance policies up to date so if any mishaps should occur, regardless of fault, your covered. We want you to have the peace of mind knowing that we are backed by million dollar policies and years of experience. We have built enough homes and completed enough remodel projects to know what quality work looks like. We give our customers the highest quality of work while we are at their house and the highest quality of insurance and warranties to lean on long after we are finished.

City Building License

  1. Oklahoma City CON-13591
  2. Yukon 1988
  3. Moore 14073


  1. Better Business Bureau A+ rating
  2. City of Oklahoma City "Preferred Builder"


MSC has been serving the greater Oklahoma City and Edmond area for over 30 years.

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