---
title: "Lease-up period — Class A Atlas glossary"
description: "Time from CO to stabilised occupancy."
canonical: https://classa.info/glossary/lease-up-period
pageType: glossary
lastUpdated: 2026-04-01T00:00:00.000Z
license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)."
---

> Time from CO to stabilised occupancy.

## TL;DR

- Time from CO to stabilised occupancy.
- Typical Class A new-build lease-up: 24–36 months.

# Lease-up period

*Leasing · Global*

## Short definition

Time from CO to [stabilised occupancy](/glossary/stabilised-occupancy).

## Full definition

Typical [Class A](/glossary/class-a) new-build lease-up: 24–36 months. Trophy assets in supply-constrained markets compress to 12–18 months; mid-tier in oversupplied markets stretch to 48+ months.

## Why this matters for Class A leasing

Lease-up period is part of the leasing vocabulary that institutional Class A occupiers, landlords, and advisers use across Global markets. Understanding it correctly affects how you read lease documents, model occupancy economics, and benchmark deal terms across cities. Class A Atlas tracks regional variation alongside the global standard so [cross-border](/topics/cross-border-expansion) occupiers can translate quickly.

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Citation: Source: Class A Atlas (https://classa.info/glossary/lease-up-period), updated 2026-04-01T00:00:00.000Z.