Killeen Studio Architects

Killeen Studio Architects Killeen Studio Architects is a full-service architectural and interior design firm based in St. Louis, MO. Our process is simple, yet very effective. We listen.

We are a small, detail-oriented architectural firm, catering to individual clients with high expectations in both design and budget. We provide preliminary plans of our clients' dreams. We confirm budget expectations with our contractor friends. We provide working drawings to bring the dream to reality. We are an ally for the home owner during the construction process. We are there for the home owner after construction as needed.

A workplace refresh that transformed a two-story law office into a brighter, more efficient, and fully accessible enviro...
10/21/2026

A workplace refresh that transformed a two-story law office into a brighter, more efficient, and fully accessible environment. By reimagining the ground floor, we created an open administrative hub supported by new private offices with glass walls and doors, allowing natural light to flow into the space while maintaining privacy and acoustic separation. The project also introduced a new conference room, improved workflow throughout the office, and elevated finishes and fixtures across the building. The result is a cohesive, modern workplace where every space feels intentional, connected, and designed to support productivity.

Looking to reimagine your office or commercial space? Whether you're adapting an existing building or planning a complete renovation, our team can help create a space that works better for your business. Contact Killeen Studio to start the conversation.

10/14/2026

Built in 1908, the historic Kingsbury Apartments on Clara Avenue suffered significant cornice damage during the May 2025 tornado. Scaffolding is being put into place as the team begins the careful work of restoring this historic St. Louis building.

Coming Soon to the Hill!Crews are set to break ground on a new single-family residence on a vacant lot in St. Louis' Hil...
10/09/2026

Coming Soon to the Hill!

Crews are set to break ground on a new single-family residence on a vacant lot in St. Louis' Hill neighborhood.

The homeowners are making the move from the suburbs to be closer to their children and grandchildren, who already call The Hill home.

Designed for multiple generations to gather, the residence wraps around a private courtyard and lap-length swimming pool.

The project brings the comforts of a private family oasis into one of St. Louis' most walkable neighborhoods, with family, restaurants, and neighborhood amenities just steps away.

Check back for updates!

New Welcome in Webster GrovesThis exterior renovation gives a Webster Groves home a defined, covered entry and stronger ...
10/02/2026

New Welcome in Webster Groves

This exterior renovation gives a Webster Groves home a defined, covered entry and stronger sense of arrival. The existing gutter line and fascia were extended and wrapped around the new entry, creating a seamless transition between old and new.

Killeen Studio worked with the homeowners from design through the Webster Groves review and approval process, bringing a modest exterior update to life.

Swipe to see construction progress and a before photo.

09/28/2026

Before & After transformation in St. Louis’ Shaw neighborhood.

This four-unit building renovation brings new life to a classic St. Louis building type, retaining its historic details while making the interiors feel more open. Kitchens and bathrooms were updated with modern fixtures and layouts, creating functional living spaces within the original footprint.

The project utilized historic tax credits, which guided the drawing process and informed exterior material selections, including replacement windows designed to match historic profiles and standards.

Projects like this are a reminder that preservation is also about adapting existing buildings for contemporary living and providing homes for a new generation of residents in the Shaw neighborhood.

Considering a renovation or adaptive reuse project? Contact Killeen Studio to discuss what’s possible.

Killeen Studio Architects worked with Killeen Counseling to adapt this existing Webster Groves residence into a welcomin...
09/18/2026

Killeen Studio Architects worked with Killeen Counseling to adapt this existing Webster Groves residence into a welcoming counseling practice. The renovation includes interior updates throughout the building, including the conversion of an existing second-floor bedroom into two private offices.

The design preserves the floor plan of original building while creating comfortable, functional spaces suited to its new use. Original wood floors, traditional trim, existing windows, and the scale of spaces work to create an environment that feels rich and intimate. A restrained material palette: warm wood, muted earth tones, painted millwork, and simple furnishings, carries that character into the renovated spaces.

From refreshed interiors to carefully integrated office spaces, the project demonstrates how existing buildings can be successfully reimagined for contemporary needs. Own an existing building ready for its next chapter?

Killeen Studio Architects can help you reimagine it for what comes next.

Completed near Cliff Cave County Park, this multi-level garage and artist studio makes use of the site’s natural grade, ...
09/11/2026

Completed near Cliff Cave County Park, this multi-level garage and artist studio makes use of the site’s natural grade, with vehicle storage at the main level and a light-filled artist studio above.

A gabled roof, exposed structure, stone accents, and painted siding give the building a character that feels at home within its wooded setting.

KSA is proud to be part of the team reimagining the Westborough Country Club campus—rethinking access and circulation wh...
09/04/2026

KSA is proud to be part of the team reimagining the Westborough Country Club campus—rethinking access and circulation while helping coordinate improvements to tennis, pickleball and bocce courts, landscaping, and other major site elements.

The result is a more cohesive and connected campus that strengthens the relationship between the clubhouse, recreation, and surrounding grounds.

Swipe through for an aerial view of the completed improvements, photography captured by KSA, and our conceptual site plan illustrating the vision that helped guide the project.

After a devastating fire in 2011, this Maplewood Craftsman was carefully reconstructed with a focus on retaining the cha...
08/27/2026

After a devastating fire in 2011, this Maplewood Craftsman was carefully reconstructed with a focus on retaining the character and details of the original home.

Historic photographs, sketches, and floor plans helped guide the reconstruction, from the cedar shake siding and trim details to the proportions and Craftsman character throughout.

Swipe to get a closer look at the documentation and details that helped bring the home back.

41 Penn — completed in 2007.This five-story mixed-use condo building sits in the heart of Westport in Kansas City. A lit...
08/20/2026

41 Penn — completed in 2007.

This five-story mixed-use condo building sits in the heart of Westport in Kansas City. A little piece of project history: the St. Louis Cardinals won the 2006 World Series while the building was under construction.

Nearly 20 years later, 41 Penn remains part of the fabric of one of Kansas City’s most vibrant neighborhoods.

Address

3015 Salena Street
St. Louis, MO
63118

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+13147710883

Website

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