Appendix - GSA

Historic Preservation
8.5" x 11" report, signed by qualified preservation
architect, including
Narrative.
1. General: Project purpose, scope, groups and
individuals involved
2. Existing conditions, describing:
– Overall building size, configuration, character
– Project location
– Existing original materials and design, relevant
alterations
3. Preservation design issues and prospective solutions,
including:
– Location of new work/installation: visibility,
impact on historic finishes
– Compare options for preserving/restoring historic
materials and design
– Identify further study required to avoid adverse
effects as applicable
Photographs.
– General and detail views showing existing
conditions at affected preservation zones, keyed
to plan showing location and orientation of each
view
– Captions identifying location, subject, condition
shown
Drawings.
Reduced to 8.5" x 11, 11" x 17" foldout or placed in cover
pocket:
– Site and floor plans, as applicable
– Sketches or schematic CAD drawings (elevations,
plans) showing preservation design concepts
Structural
A structural narrative only needs to be submitted if a
structural upgrade is part of the scope of work.
Narrative.
1. Description of current structural systems, state of
repair, variances from present codes and available
spare load capacity. Data may be obtained from
review of original construction drawings and codes
or from an analysis of the actual structure.
– This report may have been completed as part of
the Prospectus Development Study.
2. Identification of governing codes.
3. Description of recommended changes to the
structural system, addressing:
– Structural materials, required selective demolition
or alteration of existing structural elements, roof
and floor framing system, means of resisting
lateral loads and connections between existing and
new structural systems.
4. If a seismic safety study exists for the building,
describe any variations taken in design, compared to
the study’s recommendations.
Mechanical
A mechanical narrative only needs to be submitted if the
alteration scope of work involves changes to the major
mechanical systems. Replacement in kind of all or part of
an existing mechanical system does not need to be shown
at this stage of design.
Narrative.
1. Description of requested changes to existing systems.
– Describe HVAC and plumbing systems, including
available capacity versus criteria in Chapter 5 of
this document and operational characteristics.
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A.4
F A CILI TIES S T AND ARDS FOR THE PUBLIC BUILDINGS SER VICE
Alteration Projects – Concept
Revised March 2005 – PBS-P100