Tree Constraints Assessment for Historic Path Upgrades at Saltram
A BS5837 survey at Saltram Estate mapped 80 trees to guide path upgrades—informing design, safeguarding veteran trees, and ultimately leading to a decision to halt works due to constraints.
Client: National Trust
Location: Saltram Estate, Plympton, Plymouth, PL7 1UH
Services Provided
BS5837 Stage 1 Tree Constraints Survey
Arboricultural Assessment
GIS Mapping and Tree Categorisation
Tree Protection and Design Advice
The Challenge
The National Trust aimed to improve visitor access paths at Saltram, a Grade II Registered Park and Garden. The work area included high-value trees – many mature or veteran specimens with heritage and habitat significance. The key challenge was evaluating arboricultural constraints early to ensure any design proposals were feasible and conservation-compliant.
The Solution
Land & Heritage conducted a detailed BS5837 Stage 1 survey using mobile GIS tools to map and assess 80 trees. We categorised each by health, longevity, and value, and advised on no-dig construction and selective path realignments. These insights were essential in informing impact assessments and minimising risk to trees.
The Result
The survey revealed significant arboricultural sensitivities – including veteran oaks and ornamental heritage trees – prompting the client to reconsider the planned upgrades. Our clear, data-led recommendations helped the National Trust make an informed decision to avoid works in this area, preserving the integrity of the landscape.