# Philadelphia Class A vs Class B office

> Class B office in Philadelphia typically trades 30–60% below Class A on rent, with materially higher vacancy and a much harder lease-up profile.

**Canonical URL:** https://classa.info/cities/philadelphia/class-a-vs-class-b
**Page type:** city-topic
**Last updated:** 2026-04-15T00:00:00.000Z
**License:** CC BY 4.0 with attribution to Class A Atlas (https://classa.info).

## TL;DR
- Class A asking: $38/sqft/yr; Class B typically 30–60% below.
- Vacancy gap is structural — Class B carries the long tail.
- Repricing of Class B is the defining feature of post-2020 office markets.
- Conversion (residential / mixed-use) is now a real exit for Class B in many Philadelphia submarkets.

## Key facts
- **city**: Philadelphia
- **country**: United States
- **region**: Americas
- **classARentLocal**: $38/sqft/yr
- **classARentUsd**: $38/sqft/yr
- **vacancy**: 21.6%
- **typicalLeaseYears**: 10
- **typicalRentFreeMonths**: 14
- **submarkets**: 5
- **primeYieldPct**: 6.9%

## FAQ
### How much cheaper is Class B than Class A in Philadelphia?
Typically 30–60% on rent, with materially higher vacancy and weaker concessions. The gap has widened since 2020.

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Citation: Source: Class A Atlas (https://classa.info/cities/philadelphia/class-a-vs-class-b), updated 2026-04-15T00:00:00.000Z.