Belfast·SPG004 Residential Extensions and Alterations·Page 33·4.2.6
Window and door alignment in extensions and alterations
New windows and door openings in extensions or alterations should be aligned with existing fenestration and match the symmetry of the existing dwelling. The relationship between solid and void elements is a key design consideration, particularly where window size and height vary across different floor levels.
To facilitate the integration of an extension or alteration with the existing property, new windows and door openings should be aligned to the existing fenestration and match the symmetry of the existing dwelling. The relationship between solids and voids is an essential component of any new proposal, but particularly when extending or altering an existing property where window size and height diminish on upper floors.
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