Embodiments described herein include a network-based exchange for conducting transactions involving fractional interests in real estate assets. The platform acts as both a market where participants can buy and sell fractional interests in real estate properties and a funding mechanism where entrepreneurial real estate promoters can raise capital through a private market. The platform enables a large group of underserved accredited investors to invest in commercial real estate. The system can receive bids over the network for purchase of one or more of the fractional interests from buyers and determine highest bidders for each fractional interest. Successful buyers can then be identified for each fractional interest when the highest bidder bids an amount that meets or exceeds a reserve price set by the seller. Ownership of a fractional interest in the real estate asset includes the right to a proportional amount of income generated by the fractional interest.