Sean O'Kane AIA, Architect P.C. is an architectural firm specializing in custom residential design, new homes, additions, renovations, and historic restoration. The firm, established in 1986, is located on historic Main Street in Ridgefield, CT and has worked on many diverse projects located throughout Connecticut, New York City and State and Rhode Island.

At Sean O’Kane AIA, a very individual approach to design is taken, with personal involvement from the initial client meeting to project completion. Exceptional attention to detail is of the utmost importance while working to fulfill the client’s needs and desires. From site planning through final hardware and tile selection, all aspects of the project design are thought out in advance before they are executed. Regular site visits to check on the progress and quality of the work and consulting with contractors on a daily basis enables Sean O’Kane AIA to see that the firm’s designs and client’s wishes are implemented to achieve the highest quality possible.



President and founder of the firm, Mr. O’Kane received his BSC Architecture from Queens University Belfast and his graduate degree in 1979 from Heriot Watt University, Edinburgh Scotland. Mr. O’Kane emigrated to the USA after graduation, working in New Hampshire on adaptive reuse and historic preservation projects. In 1981 he moved to Ridgefield, CT and after practicing in Rye with a firm for five years, left to establish his own firm. Mr. O’Kane is a member of the American Institute of Architects, the Institute for Classical Architecture, the Connecticut Trust for Historic Preservation and has been a registered architect in Connecticut since 1983.


Mr. Adamski received a Bachelor of Architecture in 1986 from the University of Minnesota-Twin Cities. Before moving to Connecticut in 1993, he worked in a Minneapolis firm specializing in the restoration of historical buildings. Mr. Adamski has been a member of the firm since 1994 and is a registered architect in the states of Connecticut and New York.


Crystal Chandler received a B.S. in Building Sciences from Rensselaer Polytechnic Institute in Troy, New York in 2001. She is a registered architect, a member of the American Institute of Architects and a LEED Green Associate. She has been with the firm since 2001.


"Sean, Crystal, Rich and the team have subtly blended new renovations into the classic architecture of our 1904 Victorian in a way that has increased its functionality and aesthetic features. In addition to great architecture, they keep cost and efficient project management in the forefront. They are a pleasure to work with."


"Sean is a great talent. My wife and I worked with Sean and his team on three distinct and very different projects with two different general contractors. In the redo of our Manhattan apartment he was very aware and respectful towards the historic 1920’s building elements, and our redone apartment looked like an original.

In our homes in Connecticut he demonstrated a wonderful affinity for the natural landscape while designing two very different style buildings.

In all cases the attention to detail was what made the projects so successful."