"The most beautiful house in the world is the one you build for yourself."

Witold Rybczynski

A residential architectural firm, Reslock and Sullivan LLC specializes in creating custom home designs

New Homes, Additions or Renovations

from Traditional - to Mountain - to Modern

from Vail to Evergreen to Denver - and Beyond.


Our Services

New Home Design

Room Additions and Remodels

Kitchen and Bath Renovations

Master Bedroom and Bath Updates

Exterior Renovations

Outdoor Kitchens and Living Spaces

Aging-in-Place Options Including Multi-Generational, Zero Step Living and Elevators


Bill Reslock at (303) 917-3733 bill@reslocksullivan.com

Debbie Sullivan at (303) 917-2122 dsrsllc@comcast.net

Designing your home starts before you're ready to hire an architect

We'd like to share what we've learned over the years, whether it's how to define your style, setting and sticking to a budget or tips to make this process as stress and surprise-free as possible. 

And we're always happy to answer any questions you may have. Just email or call!

Creating your ideal home starts long before you're ready to have plans drawn. That's why we provide resources to help wherever you may be in the process, including design guides, blog posts and newsletters.

To get started, please click below for our free design guide, which also includes the 5 most important questions to ask an architect.

Return on Investment: 7 Benefits of a Custom Architectural Design

Architectural Educational Resources

Are you in the initial stage of gathering information?

  • Check out our resources on how a custom design can return your investment in value added
  • Read our step-by-step guides on how the design process works
  • Review the best steps to choosing an architect or contractor - even if it's not us.

Do you need design advice for a specific situation or challenge?

  • We can provide an analysis of your home's livability and solutions to meet the changing needs of your family
  • Are you looking for possibilities for creating private space for an older parent or adult child?
  • A feasibility study could help you decide whether to renovate or undertake new home construction

Are you ready to start designing your dream home, renovation or addition?

  • Call us for a free initial consultation to talk about your vision or how we can help in its definition
  • Contact us for an informational packet to better understand the process and the next steps
  • Let us answer all your questions and maybe even a few you might not yet know you have

Design Pricing Options

We not only provide customized designs but we also offer tiered-pricing options that range from a design-only package to our premium service that takes you through construction completion. But regardless of your budget, you don't have to settle for a generic plan whose design is intended to work for everyone else. Let us help create a unique expression of your life. 

RSLLC Webphotoberlantirendering.png

We specialize in mountain and modern architecture...

and creating the home that could only be yours.




We'd love to talk with you about your plans, whether you're just starting to gather information, have questions about a specific situation or are ready to start the design process.

Please call or email Bill Reslock at (303) 917-3733 or bill@reslocksullivan.com or Debbie Sullivan at (303) 917-2122 or dsrsllc@comcast.net to talk about how we could help.

Scroll to the top and click on the About Page to learn more about us, our services and to look at some of our projects. And check out our Blog if you'd like more information about the design and construction process.

Your life isn't like any other's

Your home shouldn't be either

Please click below for our free design guide, which also includes the 5 most important questions to ask an architect.

Return On Investment: 7 Benefits Of A Custom Architectural Design


Bill Reslock Architect


(303)917-3733 bill@reslocksullivan.com





Debbie Sullivan Land planner

(303)917-2122 dsrsllc@comcast.net