Mr. James A. Siepiela started in the building business in 1970, with a custom homebuilder in San Antonio. While working on his degree from the University of Texas in Austin, Mr. Siepiela had his own construction company primarily involved in contract work in the Lakeway area outside of Austin. In 1975, Mr. Siepiela was employed by the Alpert Corporation as Contract Administrator on four condominium projects in Lakeway and as Assistant Land Manager responsible for subdivision development and golf course construction on two championship courses.
In 1977, Mr. Siepiela went to work for Nash Phillips/Copus (NPC) as Land Development Manager for multi-housing in Austin. His responsibilities included all supervision and administration of various land developments in Austin associated with townhouse, apartment, condominium and duplex development. In 1979, Mr. Siepiela was made President of the Central Texas Region of NPC and had P & L responsibility for all single-family home-building and development in the Temple, Killeen, Bryan, Georgetown and College Station areas.
Mr. Siepiela guided the growth of the start up Central Texas Division to where it was building, selling, and closing in excess of 260 homes a year for $20,000,000 in sales volume. While President of the Central Texas Division, several commercial buildings were constructed and sold including a bank building, retail store and an office project in Bryan, College Station. In 1982, while still President of the Central Texas Region, Mr. Siepiela was also made President of the newly formed North Texas Region (Dallas / Forth Worth). He was responsible for all start up of this newly formed division including setting up credit lines, mortgage banking, all financing, land and lot acquisition, product development, and hiring of all local employees.
In April of 1983, NPC opened for sales in the Dallas/Ft Worth area and in 1986, closed 890 single-family homes for a sales volume of approximately 100,000,000. In addition to home building, the North Texas Region was also involved in land development and developed approximately 60% of the lots it built on. It also built lots for other builders with closing of approximately 300 lots per year to others and additional revenues of $10,000,000. Combined revenue in 1986 was in excess of $110,000,000.

In June of 1987, Mr. Siepiela formed Siepiela Interests, Inc., a multifaceted development company concentrating primarily in single-family lot development as well as light commercial and multi-family development. Siepiela Interest has been involved as the primary developer on more than 5,000 lots in the Dallas/Ft. Worth Metroplex with total revenues on those projects in excess of $250,000,000.00.
Some of the more notable projects have been Windmill Farms in Forney, Texas, a 3852 acre master planned mixed use Community, Bozman Farms, a 600 acre master planned community in Wylie Texas, Caliterra, a 600 acre master planned community in Dripping Springs, just outside of Austin, Texas. Other projects include Glenwick Estates, a 337-lot subdivision located in Flower Mound, Texas, Stafford Estates, a 267-lot subdivision also located in Flower Mound, Texas, Suncreek, a 300- acre masterplanned community in Allen, Texas, with over 850 single family lots and Prestmont, a 250-lot subdivision located in Frisco, Texas.
In addition to single family lot development Siepiela Interests, Inc. has been responsible for the development of a 190-unit apartment complex in Dallas, Texas, four self-storage warehouse projects in Dallas and Collin County in nearly 300,000 sq. ft. and numerous other retail and commercial tracts.

Mr. Siepiela has served or currently serves on several Boards of Directors:
  • National Director of the National Association of Homebuilders Washington, D.C.
  • Land Development Committee of the National Association of Homebuilders Washington, D.C.
  • Past President and Director of the Homebuilders Association of Greater Dallas, Texas
  • Past Director of First State Bank-Central Texas Austin, Texas
  • Past President of Homeowner Warranty Council of Metro Dallas Dallas, Texas
  • State Director of the Texas Association of Builders Austin, Texas
  • Government Relations and Developers Committees of the Texas Association of Builders Austin, Texas
Gregory L. Rich is the Vice President, Senior Operating Partner for Siepiela Interests, LLC and any related holdings. Mr. Rich has been in real estate lending and development beginning in 1983 with Roberts Interests, Inc. a real estate holding company that included American Century Corporation N.Y. Ex.; Commerce Savings Association, Dallas; Summit Savings Association, Dallas. As aide to Chairman John H. Roberts, duties included analysis and updating of REO loan portfolio, management of bank owned assets and cash flow and income analysis of personal assets held by Roberts including land and ranch holdings, investment income properties, aviation holdings and oil and gas interests.

In 1984, Mr. Rich joined Trammell Crow Company as a project manager for land development activities in the Northwest Region of Dallas. His responsibilities included market analysis, sales, acquisition and development of land, which led to the purchased and subsequent development of 1,500 acres of land parcels. Then as a project partner his achievements include the acquisition, entitlement and development of Lake Forest, Stone Creek, Thornhill and Orand Ranch neighborhoods, the sale of 607 lots to six (6) builders in 1986 with gross revenues of $18,000,000 and associated land/tract sales in that same year.

In 1987, Mr. Rich joined Siepiela Interests, Inc., as Vice President. His responsibilities included site selection, market analysis, equity development, builder marketing, community development and P & L responsibility for the company’s land development activities. The company’s land development activities have targeted submarkets in east, northeast and northwest Dallas, including the Cities of Plano, Allen, Wylie and Richardson (northeast), Coppell, Flower Mound, Grapevine, and Lewisville (northwest), Forney (east), Austin, Dripping Springs and Fredericksburg, Texas.

Mr. Rich is an active member of Highland Park Presbyterian Church, served a three year term on the Board of Directors of Wesley Prep (475 student population), Chaired the Fundraising Committee and Vice Chairman of Building Committee leading a $6.3 Million building campaign for the school, is member ofthe Urban Land Institute, the Home and Apartment Builders Association of Dallas, past president of the W.H.A.T. Ducks Dallas Chapter, served on the Board of Governors of the Dervish Club, the American Cancer Society as Vice-Chairman of Fundraising and on the Executive Committee of the Evergreen Gala.

In 1983, Mr. Rich received a Bachelors of Science in Economics and a Minor in Finance at Southern Methodist University of Dallas, Texas.

Jennifer C. Warheit is the acting Controller for Siepiela Interests, LLC and any related holdings. Ms. Warheit has been working in real estate development since 1999. She served as Assistant Controller with Hodges & Associates, PLLC until 2002, at which time she joined Siepiela Interests, LLC.

In 2010, Ms. Warheit started The Warheit Group, a consulting business offering finance and accounting services. In this role, Ms. Warheit consults with small businesses on structure and management of cash flow. She also provides small business bookkeeping services including payroll and tax filings.

Since joining Siepiela Interest, Ms. Warheit provides monthly accounting for operations and financial reporting for projects. This includes managing budgets, draw requests, capital calls to investors, recording acquisitions, land development costs, lot sales, and calculating distributions and returns. Ms. Warheit has participated in the execution of the business plan and the financial oversight for the Siepiela projects representing the development of over 3000 single-family lots and commercial projects. She is the financial liaison for all transactions between partners and investment groups.

Ms. Warheit began her work in the finance and accounting field in 1987 with REAKT, INC, an electrical contracting firm. Ms. Warheit transitioned to a similar role at Ham & McCreight, a Plumbing Wholesaler serving the Temple-Belton-Killeen Market.

Ms. Warheit is an active member of Munger Place United Methodist Church, serving leadership roles in their Hospitality and Small Group Ministries. She is also involved in the Life Enrichment Boot Camp, a personal and relationship development program. Ms. Warheit is a member of the American Institute of Professional Bookkeepers.

Ms. Warheit attended Austin Peay State University. She resides in Dallas with her husband. Eric, and twin daughters, Evelyn and Emmanuelle.