---
title: "Office Fit Out Guides: Costs, Cat A & B, Dilapidations"
description: "Practical guides for London office occupiers: fit-out cost per sq ft, Cat A and Cat B, dilapidations and how to choose a fit-out contractor."
canonical: https://officerefurbishmentlondon.com/guides
last_updated: 2026-10-04
---

[Home](https://officerefurbishmentlondon.com/) / Guides

# Office fit-out guides

Practical, independent guides for businesses planning an office fit-out or refurbishment in London.

Guide

## [Office Fit Out Cost per Sq Ft in London (2026)](https://officerefurbishmentlondon.com/guides/office-fit-out-cost-per-sq-ft-london)

London office fit-out costs per sq ft in 2026 for Cat A, Cat A+ and Cat B, example budgets by office size, area premiums, what drives cost and hidden extras.

[Read the guide →](https://officerefurbishmentlondon.com/guides/office-fit-out-cost-per-sq-ft-london)

Guide

## [Cat A vs Cat B Fit Out: What’s the Difference?](https://officerefurbishmentlondon.com/guides/cat-a-vs-cat-b-fit-out)

Cat A vs Cat B office fit-out explained: what each includes, shell and core and Cat A+, typical London costs per sq ft, who pays, and how long each takes.

[Read the guide →](https://officerefurbishmentlondon.com/guides/cat-a-vs-cat-b-fit-out)

Guide

## [How to Choose an Office Fit Out Company in London (2026)](https://officerefurbishmentlondon.com/guides/choosing-office-fit-out-company-london)

A practical checklist for choosing an office fit-out contractor in London: experience, accreditations, insurance, comparing quotes, contracts and red flags.

[Read the guide →](https://officerefurbishmentlondon.com/guides/choosing-office-fit-out-company-london)

Guide

## [Cat A Fit Out in London: What’s Included and What It Costs (2026)](https://officerefurbishmentlondon.com/guides/cat-a-fit-out-london)

What a Cat A office fit-out includes, 2026 London costs per sq ft (£60–£95), Cat A+ and plug-and-play, who pays, and when Cat A makes sense for occupiers.

[Read the guide →](https://officerefurbishmentlondon.com/guides/cat-a-fit-out-london)

Guide

## [Office Dilapidations in London: A Tenant’s Guide](https://officerefurbishmentlondon.com/guides/office-dilapidations-london)

What office dilapidations are, how claims work, the Dilapidations Protocol and Section 18 cap, reinstating a fit-out, and how to limit your liability.

[Read the guide →](https://officerefurbishmentlondon.com/guides/office-dilapidations-london)

See also: [areas of London we cover](https://officerefurbishmentlondon.com/london-areas) · [how we research our guides](https://officerefurbishmentlondon.com/editorial-policy)