HSK Architecture & Design LLC is a Philadelphia based architecture and design practice specializing in custom residential and boutique commercial design. Heather Snyder Killinger has married her background in modern architecture and her interests in architectural history and environmental sustainability into a practice focusing on spaces and details that are timeless in character. Clean lines and refined details, both historic and new, are carefully interwoven into restrained and often understated designs. Quality construction, careful selection of materials, and attention to architectural details are hallmarks of the design work.

HSK Architecture & Design LLC guides clients through the design and construction process. Working closely with owners, Heather helps establish the scope, budget and design vision for each project. She often recommends specific contractors, decorators, millworkers, engineers, and other specialists to join the design team early on. Heather develops details, suggests materials, and assists with product selections. She then documents the decisions into drawings and specifications that can be used for pricing, contract and construction. During the construction phase, Heather meets regularly with the contractor to monitor progress and quality.

Project proposals are prepared after an initial meeting to discuss project size, goals, budget and schedule. Proposals are tailored specifically for each client, and are broken into phases that outline relevant services and associated fees.

Prior to starting her own practice, HSK Architecture & Design LLC, Heather Snyder Killinger was an associate in the New York City architecture firm of Deborah Berke Partners. Over a ten year span at DBP she gleaned extensive experience in high-end residential design and construction, ranging from Manhattan apartments, lofts, and galleries, to large multi-building estates in the Hamptons, Westchester NY, and Martha’s Vineyard.

Originally from Annapolis Maryland, Heather has studied architecture abroad in Paris France, and interned with architecture firms in London, Philadelphia and Maryland. She received a Bachelor of Arts from Lehigh University in 1996, and a Master of Architecture, as well as the Paul Philippe Cret Thesis Award, from the University of Pennsylvania in 1999. Heather currently resides in the Philadelphia area with her husband and two sons. In addition to running her current practice, she is an active volunteer at the Chestnut Hill Conservancy.


8511 Germantown Avenue,
2nd Floor,
Philadelphia, PA 19118