# Class A vs Class B — Class A office worldwide

> What is the spread between Class A and Class B and why? Class A Atlas publishes per-city deep-dives across all 123 Tier 1 markets.

**Canonical URL:** https://classa.info/topics/class-a-vs-class-b
**Page type:** topic-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
- What is the spread between Class A and Class B and why?
- Per-city class a vs class b deep-dives published for all 123 Tier 1 markets.

## Key facts
- **topic**: Class A vs Class B
- **citiesCovered**: 123

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Citation: Source: Class A Atlas (https://classa.info/topics/class-a-vs-class-b), updated 2026-05-29T16:17:29.065Z.