Sawston and the A1307 corridor

Archaeology and Development along Sawston and the A1307 Corridor

South-east of Cambridge, chalkland and river valley development sits in a landscape with well-recorded prehistoric and Roman activity.

Authority
Greater Cambridge Shared Planning
Landscape
Chalk downland and river valleys
Prospection
Generally effective
Best sequence
Desk, survey, targeted evaluation

The next decision

A corridor survey and a development parcel answer different questions. Match each survey’s coverage and method to the actual works.

Check prospection coverage at the interfaces

The Greater Cambridge Partnership’s Cambridge South East Transport study documents the A1307 corridor planning context. It is not a current archaeological consent or a blanket scope for sites nearby. The public Dernford Farm record is a third-party assessment/survey reference, not evidence that all corridor parcels share its findings.

Overlay survey extents with junctions, access, compounds and service diversions. Identify where the scheme has changed since investigation and where coverage was limited before relying on a report for procurement.

Content updated .

The landscape

Chalk downland cut by the Cam and Granta valleys. Chalk geology produces high-contrast cropmarks and responds well to geophysical survey, and the valleys carry long sequences of settlement and land division.

What it means for your development

Prospection generally works well here, which means scope can be established with reasonable confidence before fieldwork. That favours a sequence of desk assessment, survey, then targeted evaluation — the cheapest route to a defensible mitigation strategy.

Sources and further reading

We use current public policy and guidance to keep this practical explanation grounded. Sources checked 19 September 2026.

Questions

Common questions on this

Is geophysical survey worth paying for?

On chalk, usually yes. It often reduces the amount of trenching required and produces a much better-targeted evaluation, which is where the saving actually appears.

Project review

Developing at Sawston and the A1307 corridor?

Send the planning position and the site plan. We will set out the likely archaeological requirement, the sequence and where the programme risk sits.