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Portfolio Services

CLASSIC COLONIAL SUN PARLOR

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Allison Ong Shreffler, Architect, DesignerMay 10, 2024

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RICH VALLEY ROAD COLONIAL CONVERSION

Allison Ong Shreffler, Architect, DesignerMay 11, 2024

HOME GOLF SIMULATOR & CINEMA CENTER

Allison Ong Shreffler, Architect, DesignerApril 29, 2024

Copyright 2026 Allison Ong Shreffler Architecture + Design LLC

WOMAN OWNED, DIVERSITY OWNED, & SMALL BUSINESS CERTIFIED

AOS, Architecture & Design, LLC

4601 Goose Valley Road,

Harrisburg, PA, 17112,

United States

7178849808 harrisburgarchitects@gmail.com

Hours

Mon 9am - 5pm

Tue 9am - 5pm

Wed 9am - 5pm

Thu 9am - 5pm

Fri 9am - 5pm

Sat Closed

Sun Closed