The duplex strategy choice
Single-record sale or condo regime conversion.
Every Austin duplex builder hits the same fork: list the duplex as a single tax record (one buyer takes both units, typical investor or owner-occupant who rents the second side) or convert to condo regime so the two units sell separately as fee-simple condos to two different buyers (typically owner-occupants).
The decision swings the project's economic outcome materially. Single-record sale typically nets the builder roughly 60-75% of the combined fee-simple value because the investor buyer pool prices on cap rate, not on owner-occupant willingness-to-pay. Condo regime conversion typically captures 90-100% of fee-simple-equivalent pricing because the buyer pool is owner-occupants paying for primary-residence value, but adds 8-16 weeks to the project timeline and requires CCR document drafting, regime-fee structure setup, and additional listing coordination.
Most central Austin duplex projects (East Austin, South Austin) net better as condo regime conversions. Most suburban duplex projects (Pflugerville, Round Rock) net better as single-record investor sales. The exact answer depends on submarket buyer-pool depth, project timeline pressure, and the builder's appetite for the additional regime-conversion lift. For the regime conversion mechanics specifically, see Austin condo regime sales. For the cluster pillar overview, see Austin new construction listing agent.