Define available and occupied inventory

Choose a consistent inventory and identify units actually available during the measurement period. Separate stabilized operations from initial lease-up, and gross move-ins from net occupied-unit growth. For a sales product, distinguish released inventory, signed contracts and closings after cancellations. Record concessions and price changes alongside activity so faster take-up is not misread as evidence that an unchanged higher price will clear the market.

Test different unit sizes separately

Consider a fictional proposal containing smaller and larger apartments. Review each group against comparable units rather than applying the building-wide leasing pace to both. If larger units remain available while smaller ones lease, test a revised mix or lower payment before assuming marketing will solve the difference. Extend the observation window across different seasons and inspect whether new competitive deliveries changed the pace. Keep the timing assumptions attached to the corresponding revenue scenario.

Balance relevance and reliability

A narrow sample improves relevance but can reduce reliability; a single property's management problems may distort the result. Explain exclusions and report missing data rather than implying certainty. No observed rate guarantees your project's future take-up or construction completion date. Continue with the seasonality guide to check that the observation window is representative before using absorption assumptions to size operating reserves or sequence project phases.

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General information—not personalized legal, tax, investment, engineering or architectural advice.