Data on apartments, office, retail and industrial market data in the Houston area can be found out from oconnordata. To help make better investing decisions you can get all the information from oconnordata. All basic property information, available space, rental rates, proposed and under-construction projects for all the markets including Houston, Austin, Dallas, Fort Worth and San Antonio,Texas can be searched and found from oconnodata. Conducting business nationwide O'Connor & Associates is the largest real estate research and support services firm. It is headquartered in Houston, Texas and is in operation since 1974. There are more than 130 real estate professionals at Oconnor and Associates. The most accurate way to depreciate improved real estate acquired can be done by our real estate advisors and appraisers who provide federal income tax reduction through cost segregation.