Victorian high street beside a new pale-brick and glass building in Lewisham

Areas / Lewisham

Architects and Engineers in Lewisham

Local knowledge of Lewisham's 28 conservation areas, its historic market streets, and its actively regenerating town centres, from first feasibility conversation through to a finished project.

Living and Building in Lewisham

Few London boroughs cover as much genuine variety as Lewisham: Deptford's historic riverside market streets, home to London's oldest railway station, sit within the same borough as Blackheath's grand Georgian terraces and Catford's town centre, now mid-way through a major regeneration masterplan.

Diagram X is an AEC consultancy, architecture, engineering, and construction, built to work across exactly that range, as comfortable on a Deptford conversion as on an ambitious new-build scheme in a regenerating town centre.

Minimalist living room overlooking the River Ravensbourne in Lewisham

Planning in Lewisham

The borough holds 28 conservation areas, 25 Article 4 directions, and 422 listed buildings, including two Grade I examples, Boone's Chapel and St Paul's Church in Deptford, so a heritage statement is standard practice for many schemes even outside the most sensitive streets.

Major regeneration sites, including Catford town centre and Deptford's Convoy's Wharf, operate under their own masterplan frameworks, meaning context and massing carry particular weight for new development near them.

Georgian brick house beside a contemporary corten and glass infill house in Lewisham

Refurbishing in Lewisham

Across Lewisham's Victorian terraces and Georgian townhouses alike, most interiors have had little meaningful modernisation in decades, so refurbishment here starts from bringing a home's light, layout, and performance properly up to date.

Genuinely worthwhile period features, a fireplace, a cornice, a sash window, earn their place when they're worth keeping, but a confidently modern result is always the starting assumption.

Refurbished Victorian interior with a curved green sofa in Lewisham

Construction in Lewisham

Party wall agreements and careful structural sequencing matter across the borough's dense Victorian terraces, while schemes near conservation areas or listed buildings require listed building consent and heritage sign-off alongside standard planning permission.

We plan for both from the outset, so Lewisham's historic streets and its regenerating town centres alike stay exactly as they should once work is complete.

Glass rear extension with a concrete bench onto a garden in Lewisham

Planning a Lewisham Property Project?

Learn more about how Diagram X supports homeowners with extensions, refurbishments and listed building work.

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