Adlon Atchison Billings Way Billings Way Billings Way Marina Atchison Atchison Massive Peak The Keep

Lauren Shadid Architecture + Interiors is an award-winning, Colorado-based firm in business for over 20 years  designing luxurious, healthy, and high-performance custom homes and remodels throughout Colorado and California.

Principal Lauren Shadid brings 30+ years of expertise as your Architect, Interior Designer, and Building Science expert — all under one roof — ensuring seamless design continuity from initial concept through construction. A Certified Passive House Designer and LEED AP since 2001, Lauren integrates sustainable building science into every project to create homes that are beautiful, energy-efficient, and genuinely healthy for the people who live in them.
LSA+I takes a client-first, concierge approach — listening deeply, advocating fiercely, and handling every detail so the process of building your dream home is inspiring rather than stressful. Because we take on only a select number of projects each year, every client receives Lauren’s personal attention and the exceptional, tailored service. It is this level of care and craft that is reflected in our client testimonials, awards from Colorado Homes & Lifestyles Top Architects and Top Interior Designers awards, and our 10-year streak of Best of Houzz Service and Design.

What We Design

Custom Homes

Home Remodels

Additions

ADUs (Accessory Dwelling Unit)

Interior Design 

Design-Build Options

Property Master-Planning

We understand that embarking on the design of a new home, remodel or addition can feel overwhelming.  That’s why we offer a complimentary discovery call, as well as a low-commitment feasibility consultation to homeowners wanting answers to what is possible and defining a realistic budget for their project. 
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Billings Way

Massive Peak

What Our Clients Say

“Lauren has been amazing in the process of designing our home. Her expertise and knowledge as both an architect and a designer has been outstanding. Her attention to detail has been quite impressive along with how quickly she responds to our questions. We have recommended her to friends as well and they have been quite impressed as well.” —Jean

…”Could not recommend anyone more – a total pleasure to work with and curate your vision – she did for us!!” – Bruce

“It’s hard to accurately describe how grateful I am for Lauren. Her patience, attention to detail and tireless efforts to help us create our dream home were invaluable to us. This can be an overwhelming journey, and Lauren looked out for our interests through every step of it.”  – Dana

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Who We Are

Specializing in architecture and design of high-performance, healthy homes for over 20 years. Our passion is partnering with homeowners to create a home where their family can thrive while meeting their budget needs, creating value and designing for resiliency.

Meet lauren
Lauren Shadid

LSA 2026 Houzz BadgesBest of Houzz Service & Design awards for 10 straight years. Colorado Homes & Lifestyles Top Architects and Top Interior Designers.

LSA credentials

Colorado Homes & Lifestyles | Mar-Apr 2026

Castle Rock City Lifestyle

Where Luxury Meets Sustainability and Wellness

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