---
title: "Spec suite — Class A Atlas glossary"
description: "Pre-built tenant suite delivered turn-key by the landlord."
canonical: https://classa.info/glossary/spec-suite
pageType: glossary
lastUpdated: 2026-04-01T00:00:00.000Z
license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)."
---

> Pre-built tenant suite delivered turn-key by the landlord.

## TL;DR

- Pre-built tenant suite delivered turn-key by the landlord.
- Landlord-funded pre-built suites — usually 3,000–10,000 sf — designed for fast occupancy.

# Spec suite

*Leasing · US, UK*

## Short definition

Pre-built tenant suite delivered turn-key by the landlord.

## Full definition

Landlord-funded pre-built suites — usually 3,000–10,000 sf — designed for fast occupancy. Common for sub-floor [Class A](/glossary/class-a) leasing where time-to-occupy is the deciding factor.

## Why this matters for Class A leasing

Spec suite is part of the leasing vocabulary that institutional Class A occupiers, landlords, and advisers use across US, UK markets. Understanding it correctly affects how you read lease documents, model occupancy economics, and benchmark deal terms across cities. Class A Atlas tracks regional variation alongside the global standard so [cross-border](/topics/cross-border-expansion) occupiers can translate quickly.

## Related topics

- [**Hybrid Workplace Strategy**](/topics/hybrid-workplace-strategy) — How to size, structure, and lease a Class A office for a hybrid workforce.
- [**Fit-out Capex**](/topics/fit-out-capex) — How to budget, sequence, and govern Class A office [fit-out](/topics/fit-out-capex)">fit-out capex.
- [**Lease vs Flex**](/topics/lease-vs-flex) — When premium flex (coworking, [managed office](/glossary/managed-office)) beats a conventional Class A lease — and vice versa.
- [**US TIA Strategy**](/topics/us-tia-strategy) — How to negotiate, draw down, and account for US tenant improvement allowances (TIA).

---

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