# Operating expenses — Class A office worldwide

> What service charges, OpEx, and pass-throughs apply on top of rent? Class A Atlas publishes per-city deep-dives across all 123 Tier 1 markets.

**Canonical URL:** https://classa.info/topics/operating-expenses
**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 service charges, OpEx, and pass-throughs apply on top of rent?
- Per-city operating expenses deep-dives published for all 123 Tier 1 markets.

## Key facts
- **topic**: Operating expenses
- **citiesCovered**: 123

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