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Sites of Special Scientific Interest

Asked by Calum MillerLiberal DemocratDepartment for Environment, Food and Rural AffairsTabled Answered 28 April 2026UIN 129438

The question

To ask the Secretary of State for Environment, Food and Rural Affairs, how many Sites of Special Scientific Interest have been designated in England in each of the last five years.

Answered by Mary Creagh

Sites of Special Scientific Interest (SSSI) designation is a two‑stage process. Sites are first notified, at which point they become legally protected. Notifications are then confirmed, usually within nine months, once any objections or representations have been considered.

For the purposes of this answer, “designated” is taken to mean confirmed SSSI notifications. On that basis, the number of SSSIs designated in England, by calendar year, is as follows:

Year

Number of SSSIs designated

2021

6

2022

1

2023

1

2024

0

2025

0

Confirmation often takes place in a year following notification, so notified and confirmed figures do not necessarily relate to the same sites.

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