This is the third phase of the Rockwall Technology Park, which is owned and managed by the Rockwall Economic Development Corporation. Potential buyers/companies must be fully vetted by the REDC's Board of Directors. The REDC is interested in attracting advanced manufacturing, research & development, and corporate office users. NO SPECULATIVE DEVELOPMENTS. Land and incentives available for qualified manufacturing and corporate office projects that create primary jobs. Land in Phase III can be divided to suit users in the 20 to 70 acre range. The REDC's mission is to expand & diversify the local tax base, create high quality employment, and attract new business & investment to Rockwall, TX.