The Chadmore split: one property, two income streams

The Chadmore property on the south side of Charlotte did not look like a case study when we first underwrote it. It looked like a duplex with mixed permit status and a capital improvement backlog. Six months later it is generating income from two separate strategies running simultaneously.

The upper unit at Chadmore carried a short-term rental permit when it was acquired. The lower unit did not, and the local permit authority had a multi-week processing backlog with no expedited review option. Rather than leaving the lower unit vacant or converting it to long-term use as a permanent concession, the operator placed a furnished month-to-month lease while the STR permit application worked through the queue.

The monthly rent on the lower unit covered the full carrying cost of the property: mortgage, insurance, utilities, and property management. Every dollar generated by the upper STR unit was, in accounting terms, pure return on equity. The psychological clarity this created was more significant than the financial structure. The operator stopped checking occupancy twice daily.

Splitting one property into two income streams is not a workaround. It is the assignment of capital to its highest use, room by room.

When the lower unit's STR permit was issued, the operator ran a side-by-side comparison. Upper unit on STR with the lower unit on long-term furnished produced steady, predictable income. Both units on short-term produced higher gross revenue, but with more variance and higher operating cost. The net STR premium on the lower unit was real but smaller than the headline gross difference suggested.

The operator eventually converted the lower unit to STR. Both units are now listed on Airbnb and VRBO as separate properties. They are cross-listed as a compound option for groups who want to book the full building. The compound rate carries a premium over the sum of the individual unit rates, and it fills a portion of each month.

The broader takeaway for operators in permit-constrained markets: a furnished monthly tenancy is not a failure to execute on an STR strategy. It is a capital deployment option with a known return, purchased at the cost of a permit application timeline. The Chadmore model works in any market where long-term furnished monthly rents exceed carrying costs - which, in most secondary markets with active STR demand, they do.

Chadmore is now the reference case in every dual-unit underwriting model we produce. The split-strategy framework formalizes what experienced operators have been doing informally for years.