Areas / Harrow
Architects and Engineers in Harrow
Local knowledge of Harrow's historic villages, its Metroland suburbs and its 30 conservation areas, from first feasibility conversation through to a finished project.
Living and Building in Harrow
Harrow became a London borough in 1965 and is the only one formed from a single earlier district with its boundaries unchanged, a place of hilltop and village heritage that the railways turned into suburbs.
Diagram X brings AEC (Architecture, Engineering and Construction) together for homeowners across a borough where about two-thirds of the housing dates from the interwar years.
Planning in Harrow
The borough has 30 conservation areas, and the council has made Article 4 directions for many of them, so even changes to windows, front boundaries and external finishes can need permission.
Permitted development rights should be checked property by property before any design begins.
Refurbishing in Harrow
Across the borough's interwar semis and Edwardian and Victorian houses, most interiors have had little meaningful updating in decades, so refurbishment starts from bringing a home's light, layout and performance properly up to modern standards.
A genuinely worthwhile period feature earns its place when retained, but a confidently modern result inside is always the starting assumption.
Construction in Harrow
Interwar semis with hipped roofs, hillside plots and conservation area controls shape what extensions and loft conversions can achieve, alongside the usual party wall agreements.
We plan for these from the outset, so Harrow's varied suburbs and its individual homes are both well served.
Planning a Harrow Property Project?
Learn more about how Diagram X supports homeowners with extensions, refurbishments and listed building work.
Property Services