Allison Ong Shreffler
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MODERN HILLSIDE POOLHOUSE - IN PROGRESS

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Allison Ong Shreffler, Architect, DesignerAugust 17, 2026
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CLASSIC NEW ENGLAND CAPE COD HOME REMODEL - IN PROGRESS

Allison Ong Shreffler, Architect, DesignerAugust 17, 2026

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