# Core and shell

> The base building delivered without interior fit-out — structure, exterior, MEP risers, lobby.

**Canonical URL:** https://classa.info/glossary/core-and-shell
**Page type:** glossary
**Last updated:** 2026-04-01T00:00:00.000Z
**License:** CC BY 4.0 with attribution to Class A Atlas (https://classa.info).

## TL;DR
- The base building delivered without interior fit-out — structure, exterior, MEP risers, lobby.
- A landlord delivers core-and-shell; the tenant builds the interior.

## Key facts
- **category**: Construction
- **regionScope**: US

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