Guide

What is a Written Scheme of Investigation (WSI)?

The method statement that must be agreed before archaeological fieldwork can start.

Planning documents and maps

Definition

A WSI sets out the aims, methods, staffing, reporting and archiving for a programme of archaeological work.

Who approves it

The local planning authority, advised by its archaeological advisor, approves the WSI before fieldwork begins.

Why it matters

An approved WSI is usually a requirement of an archaeological planning condition. Work carried out without one may not count towards discharging the condition.

This guide is general information, not advice for a specific site. Talk to our team about your project.

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