Hi Mike,

I’d say the external works should be included within the scope of the assessment. Under clause 7.1 of EN 15978, the object of assessment is “the building, including its foundations and external works within the curtilage of the building’s site” where “the curtilage […] shall be consistent with the […] intended use of the building”.

Given that the facilities external to the building (but still on the site) are part of the intended use of the facility, I believe they should be included.