Errol Street YMCA, London

Errol Street YMCA, London

Full streetscape model requiring detailed elevations of specific buildings, mass models of others, and topography including planting and street furniture,…

Full streetscape model requiring detailed elevations of specific buildings, mass models of others, and topography including planting and street furniture, additional building basement model added retrospectively.

Located in the city of London, the YMCA building is due for full redevelopment after 30 years of use. Having fallen behind the standard of facilities expected by its owners, the building is scheduled for demolition with only the basement remaining.

As such, the survey required focused mainly upon the surrounding buildings – massing for urban planning requirements, and more detailed elevations, particularly for right to light study. Although the building itself has a fairly small footprint (approximately 2000m2), once the surrounding area was taken into account the site footprint grew to nearly 7000m2 of surveyed area.

The modular nature of the buildings combined with the requirements of the client made the majority of the modelling a straight forward experience. The only fine attention to detail being required on the Victorian building abutting to the east, which featured some fine stonework carving and detail around openings.

The requirement to deliver the topography in 3D caused some initial concern – with Revit lacking some basic tools to deliver street features such as kerbs – although the client was happy to bypass this, concentrating on the accuracy of the spot levels. The spot levels themselves were devised by creating an artificial grid and taking points directly off the point cloud at grid intersections.

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