# Global Tier 1 Class A office overview

> Global Tier 1 Class A Atlas coverage includes 123 Tier 1 cities and 629 Class A submarkets.

**Canonical URL:** https://classa.info/regions/global
**Page type:** region-landing
**Last updated:** 2026-05-29T16:17:29.065Z
**License:** CC BY 4.0 with attribution to Class A Atlas (https://classa.info).

## TL;DR
- Class A office across all Tier 1 cities worldwide.
- 123 Tier 1 cities covered in Global Tier 1.
- Total Class A submarkets in Global Tier 1: 629.
- Pricing convention: USD per sqft per year (Class A Atlas convention).

## Key facts
- **region**: Global Tier 1
- **cities**: 123
- **submarkets**: 629

---
Citation: Source: Class A Atlas (https://classa.info/regions/global), updated 2026-05-29T16:17:29.065Z.