~Interior Designers~

Ready to Begin Your Design Journey?

At Spaces by Kate, KateLynn Efendiyev creates thoughtfully curated interiors for clients throughout the Greater Boston area. Each project is approached with creativity, care, and a deep understanding of how you want to live in your space. Whether you’re refreshing a single room or reimagining your entire home, KateLynn is here to guide you every step of the way. Reach out to start the conversation and bring your vision to life.

 

Interior design and decoration including product selection and purchasing

 

Schedule a Discovery Call

 

Katelynn Efendiyev, Boston interior designer.

Meet KateLynn Efendiyev

Based in Framingham, Massachusetts, KateLynn Efendiyev is the founder of Spaces by Kate, serving clients throughout MetroWest, Greater Boston, and the city of Boston. As a mother of two, she has built her business on the belief that a well-designed home should support real life while bringing a sense of joy to everyday moments. Her path into interior design reflects both a lifelong appreciation for interiors and architecture and a personal commitment to pursuing meaningful work—something she is proud to model for her children.

For KateLynn, great design goes beyond aesthetics—it’s about how a space feels the moment you walk through the door. She creates interiors that are not only beautiful, but deeply personal and highly functional. From kitchens and bathrooms that enhance daily living, to serene bedrooms designed for rest and renewal, to living rooms that bring people together, every space is thoughtfully considered. The most rewarding part of her work is seeing a client’s vision come to life—delivered with care, creativity, and a seamless, full-service experience.

Design & Decoration

Spaces by Kate provides comprehensive interior design services for both residential and select commercial projects, guiding you through every stage of your design journey—from initial concepts and planning to the final installation. Whether you’re envisioning a full home transformation or refreshing a single space, KateLynn is dedicated to bringing your vision to life with clarity and care.

Following an initial phone consultation, KateLynn will visit your home to better understand your needs, explore ideas, and develop a design direction tailored to your lifestyle. She creates detailed plans and presents thoughtfully curated selections that reflect your personal style. Throughout the process, she manages every detail—from design and sourcing to ordering and installation—ensuring a seamless and enjoyable experience from start to finish.

Contact Spaces by Kate to experience elevated design, personalized service, and custom furnishings that blend beauty with functionality. With KateLynn leading the way, your home will come together effortlessly—resulting in a space you’ll love for years to come.

Reviews

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“Working with Spaces by Kate was an absolute pleasure! KateLynn has an incredible eye for design — she immediately understood our style and created a space that feels both beautiful and completely “us.” She’s fun to work with, full of creative ideas, and truly professional from start to finish. KateLynn also saved us money by sourcing smartly and helping us prioritize where to spend and where to save. She goes the extra mile in every detail — I can’t recommend her enough!”  — Ashley Feldman Bentley

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“Katelynn is by far the most professional designer that I have ever worked with. Her skills at intuiting exactly what I wanted my space to look like was beyond excellent. I would recommend her to anyone who wants an exceptionally gifted designer.” — Sandra Siegal

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“Katelynn assisted me in my renovation of my living and dining room. Her professionalism and reliability far exceeded my expectations. She was very respectful of my budgetary concerns. And the best news was how great the project turned out. I highly recommend Katelynn.” — Marilyn

Three Ways to Contact Us:

Call (508) 501-8550

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