Areas / Borough
Architects and Engineers in Borough
Contemporary architecture and engineering for Classical 18th and 19th-century buildings in Borough, from first feasibility to a finished project.
Living and Building in Borough
A market has stood near Borough High Street since at least 1014, when the chronicler Snorri Sturluson described Southwark as a great market town, with trading only moved off the congested high street itself in 1755 to its present site.
Diagram X brings genuinely modern architecture, engineering, and construction into streets where 18th and 19th-century townscape, designed on Classical principles, still frames one of London's oldest trading quarters.
Planning in Borough
The Borough High Street Conservation Area, designated in 1968, runs from St George the Martyr to London Bridge, taking in Southwark Cathedral, Borough Market, and the surroundings of Guy's Hospital on St Thomas Street.
Each scheme is assessed against the specific heritage character of whichever part of the conservation area it falls within, rather than a single standard across Borough.
Refurbishing in Borough
Behind 18th and 19th-century Classical facades, Diagram X strips back dated, compartmentalised layouts in favour of open, minimalist interiors with honest materials and broad glazing.
The historic frontage stays untouched, while the space behind it becomes something genuinely of today.
Construction in Borough
Conservation area restrictions, listed structures, and dense historic streets close to the river demand careful sequencing on nearly every scheme.
Diagram X runs structural engineering, waterproofing, and site logistics as one coordinated process, protecting historic character while new space takes shape behind it.
Planning a Borough Property Project?
Learn more about how Diagram X supports homeowners with extensions, refurbishments and listed building work.
Property Services