Lease-Up Shapes Design

Lease-up is the period when a completed building fills with tenants. Its pace affects when income begins and how long the project carries financing and operating costs before reaching its planned occupancy.

Each cohort has its own free-rent clock

Illustrative 180 homes, monthly absorption held constant, no move-outs. Each arriving cohort receives its selected number of whole free-rent months. Occupancy is measured after that month’s arrivals; stabilization target is 93%. Fixed building OpEx is $580 per available home/month and debt service is $165k/month. Cash after those costs is not NOI. First 36 months are summed; late or incomplete stabilization is disclosed.

Developers estimate absorption from comparable properties, unit mix, pricing and competing supply. Those estimates are uncertain. If leasing takes longer than planned, the project may need more capital or a revised operating plan; if units lease quickly, the result still depends on actual rents and expenses.

Design can influence the leasing proposition through unit layouts, shared spaces and the mix of offerings, but it cannot control the market. Treating the lease-up model as a design constraint means asking how program and pricing assumptions relate, then testing alternatives rather than presenting a single timeline as certain. Lease-up assumptions should be revisited when competing supply, pricing or the unit offering changes.