About Kirby & Z

Kirby & Z is an independent, full-service interior design firm with a straightforward mission to help our clients love where they live.

Kirby & Z provides residential design services throughout the Houston Metro area. We specialize in remodels, space planning, design updates, lighting and color selection, furniture layout, decorating and selection of décor including furniture, window treatments, bedding, rugs and accessories.

We are a hands-on team that works with you from initial consultation to final reveal. We get to know you, your tastes and interests so we can create to-scale space plans and design selections that exceed your expectations.

While we have style preferences, we design to our client’s requests. We utilize color, texture and fabrics to create unique spaces that are comfortable for you and your family. Working within your budget, we shop for the new furniture and accessories you’re sure to love, while being careful to incorporate those already loved items into your new design.


Lighting and color selection

Decorating and décor selection

Space planning

Furniture layout

Custom cabinetry design

Window treatment selection

Material selections for countertops and flooring

Accessories and artwork

Aging in Place

Our team is proficient in AutoCAD and SketchUp allowing us to provide accurate, to-scale drawings of your spaces. Reviewing these proposed “after” designs makes the decision-making process easier because you have a clear picture of what your new space can look like. It also gives you something to get really excited about while the project is underway!

Lilly Powell

Lilly Powell is the founder and principal designer of Kirby and Z.

Lilly has nearly a decade of experience designing homes and corporate offices in Houston and Dallas. She has worked with a variety of clients and managed projects of all sizes and budgets.

From demolition and construction plans to furniture layouts and lighting, Lilly has successfully designed beautiful spaces from ceiling to floor.

As leader of Kirby and Z Interior Design, Lilly strives to cultivate lasting relationships with clients, while enabling them to have the homes of their dreams.

Lilly is past-president of the National Kitchen and Bath Association Gulf Coast Chapter and is a member of American Society of Interior Designers Texas Gulf Coast Chapter.

Lilly and her husband are proud parents of a 7 year old daughter. When she’s not designing for clients, Lilly enjoys being a wife and mom and sharing adventures with her family.