10 March 2021

TRITAX BIG BOX REIT PLC

(the "Company" or, together with its subsidiaries, the "Group")

DIVIDEND DECLARATION

The Board of Directors of Tritax Big Box REIT plc (ticker: BBOX) has today declared an interim dividend in respect of the period from 1 October to 31 December 2020 of 1.7125 pence per ordinary share, payable on or around 1 April 2021 to shareholders on the register on 19 March 2021. The ex-dividend date will be 18 March 2021.

This dividend will be an ordinary UK dividend ("non-PID").

Following the payment of this dividend, the Company will have paid, in aggregate, 6.40 pence per ordinary share in respect of the year ended 31 December 2020.

FOR FURTHER INFORMATION, PLEASE CONTACT:

The Company's LEI is: 213800L6X88MIYPVR714

NOTES:

Tritax Big Box REIT plc (ticker: BBOX) is the only listed vehicle dedicated to investing in very large logistics warehouse assets (Big Boxes) in the UK and is committed to delivering attractive and sustainable returns for Shareholders. Investing in and actively managing existing built investments, land suitable for Big Box development and developments predominantly delivered through pre-let forward funded basis, the Company focuses on large, well-located, modern Big Box logistics assets, let to institutional-grade tenants on long-term leases (typically at least 12 years in length) with upward-only rent reviews and geographic and tenant diversification throughout the UK. The Company seeks to exploit the significant opportunity in this sub-sector of the UK logistics market owing to strong tenant demand and limited supply of Big Boxes.

The Company is a real estate investment trust to which Part 12 of the UK Corporation Tax Act 2010 applies (REIT), is listed on the premium segment of the Official List of the UK Financial Conduct Authority and is a constituent of the FTSE 250, FTSE EPRA/NAREIT and MSCI indices.

Further information on Tritax Big Box REIT is available at www.tritaxbigbox.co.uk