TRIO Honored by Interior Design Magazine

TRIO is honored to have been recently ranked in the 2019 Interior Design Top 100 Giants annual survey!

Interior Design Research Group surveys the 2019 top 100 Giants firms on fees, market sector, and growth potential throughout the world. This incredible recognition, in addition to our 8 Gold Awards at The Nationals, represents many great partnerships, a lot of hard work, and exceptional market-driven design by the entire TRIO team.

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Welcome to TRIO

The Creative Business Partner for Builders & Developers

In 1999 TRIO Environments began when Angela Harris saw the need for a design firm that not only conceptualized beautiful interiors, but also understood how sales and marketing could work in tandem with great design. At that time there were only a few firms concentrating on market-driven design, and TRIO thought it could be done better— hitting targeted markets at a lower cost, in a shorter time period, and with better quality merchandise. WE WERE RIGHT!

Today we move forward as TRIO, in a bolder, bigger way. We collaborate on all aspects of master planned communities, model homes, clubhouses, sales centers, commercial and hospitality projects, multifamily apartments, and we offer a comprehensive studio for everything related to interior architecture and merchandising. Let’s connect and discuss how we can help with your project.

Who We Are

AN UNPRECEDENTED, AWARD-WINNING COLLABORATION – The TRIO Collection™ represents an industry-changing partnership between designer, builder, and architect offering unique style, sophistication, and choice in a custom home. The partnership between TRIO, Joyce Homes, and KGA Studio Architects produced stunning results. SEE THE COLLECTION

Award-Winning Results

Our Design Team is Consistently
One of the Best in the Business

TRIO is one of the most highly-regarded, fastest growing design and visual merchandising firms in the nation, and we’re considered an international leader in creative, market-driven design. We were recently honored to be named to Interior Design Magazine’s TOP 100 GIANTS!

Today our design firm has over 55 employees and manages upwards of 100 projects at any given time, both locally and nationally. TRIO has helped sell more than 25,000 residences and generated over $7 billion in revenue for our Builder & Developer partners.

TRIO prides itself on being capable of providing anything from color palette selection to full interior design and merchandising of multi-million dollar projects. Our expertise in sustainable design, wellness, and merchandising brings a unique balance of understanding the technical, marketing, and aesthetically pleasing design aspects of multifamily and production building. Our mission is based on customer service and to provide projects on time and within budget.


Award Winning Projects from Our Talented Team

Over the past 20 years, our combined track record within the design and merchandising industry has proven to be uniquely successful and produced award-winning results. However, none of it would be possible without the opportunity to work and co-create, with incredible partners and clients.


Palm Springs, California

Palm Desert Residence

Denver, Colorado


Parker, Colorado

Stepping Stone Marigold

Parker, Colorado

Stepping Stone Cimarron

Stapleton, Colorado

47th Avenue Row Homes

Lone Tree, Colorado

Bellweather Place at RidgeGate

Highlands Ranch, Colorado

Crescendo at Central Park

Denver, Colorado

Dylan Apartments

Highlands Ranch, Colorado

Crescendo Sales Center

Aurora, Colorado

Southshore Orion

Highlands Ranch, Colorado

Solana Lucent Station

Denver, Colorado

Broadstone Montane

Looking for More?

We’re working diligently to get ALL our projects moved over to their new online home and showcase everything TRIO is capable of producing. Until then, please check out some of the great work from Design Lines, A Division of TRIO, by visiting their website. This includes our work on CLUBHOUSES, MODEL HOMES, SALES CENTERS and more.

We Work with some of the Best in the Business

Keep Up with TRIO & Angela Harris

We Are Design

This was TRIO’s most exciting year yet, and 2019 is shaping up to be even better!

TRIO collaborates and designs all aspects of master planned communities, model homes, clubhouses, sales centers, commercial and hospitality projects, multifamily apartments, and offers a comprehensive studio for everything related to interior architecture and merchandising.

The TRIO 3% Initiative

TRIO’s passion for making the world a more beautiful place extends beyond interior architecture and visual merchandising. With the TRIO 3% Initiative our commitment is to strengthen less fortunate communities and cultivate equal opportunity by donating 3% of our revenue to various non-profit organizations. Have a cause we might be able to help with? Lets us know.


Watch our documentary on the Exceptional Education Outreach (EEO) program. The EEO is a public, non-profit special education and literacy project operating in the Bahamian Family Islands. TRIO built a new school for this deserving organization and made it a focal point of the TRIO 3% Initiative – the story was so good we had it documented.

Produced & Directed by our talented friends at F4D Studio.

TRIO Acquires Design Lines


DENVER (Sept. 7, 2018) – TRIO, one of the fastest-growing design and visual merchandising firms in the nation, today announced the acquisition of Denver-based Design Lines, Inc., an interior design firm specializing in model homes, apartment communities, clubhouses, and sales centers.

What this Acquisition Means for You

We’ve answered some of the most common questions about our update below. Have further questions or want more information? Drop us a line.

What does this mean for my company

It is business as usual! While we may have added a few new team members, we still have the same great designers and our policies and procedures won’t change. We’re ready to serve your design and merchandising projects.

What is changing

Right now, nothing! Our commitment to putting our clients first remains our top priority as we combine our companies and service offerings. The same talented team members will continue to serve all our clients. All projects will proceed according to their current scope and timeline.

Why the acquisition

Simply put, we are better together. Combining the companies gives us:

  • Increased capacity to serve our clients with more comprehensive services, resources and expertise, as well as deeper market insights.
  • Greater reach to serve clients in more markets. This acquisition more than doubles our staff size, allowing us to deepen our existing national client relationships by working with them in more markets, and build new relationships in new markets.
  • Synergies that will help make us a more well-rounded firm, in terms of our specialties and who we serve.
  • A higher level of combined creativity, allowing us to deliver elevated designs that help our projects stand out, and our clients achieve their sales, marketing and leasing goals.
  • Access to the latest design technology to help clients better visualize concepts, make more informed decisions and quicker adjustments, and ultimately execute more effective designs.
  • Expertise in sustainable design, wellness, and merchandising that balances the technical, marketing, and aesthetic considerations in multifamily and production building.

Will I need to update my address book

YES PLEASE! Our new, state-of-the-art Design Studio is located in the LoHi neighborhood. Our Business & Operations office is located in our original building near Denver Design Center. Our home on the Web is now at and you should start emailing us using You can find all the details here.

Are you taking on new projects

YOU BET! We’re more excited than ever to collaborate with Builders & Developers on just about any project. While we focus on Multifamily, Commercial, Hospitality, and Model Home projects, we are always looking for anything exciting and innovative to keep us busy.

Committed to the same great service

Our commitment to putting our clients first remains our top priority as we combine our companies and service offerings.

For Media Inquiries or Requests

Interested in information regarding our firm, its projects, products, or services? Please contact our media relations team at SideCar PR:

Sarah Cullen | 303.931.1910

Reach Out with Any Questions You Might Have

LoHi Design Studio

3400 Mariposa St. Denver, CO 80211

TRIO Business & Operations

20 E Center Ave. Denver, CO 80209

Follow TRIO

Find us across social media using @DesignByTRIO

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