Top-Notch Materials
We'll partner with trusted suppliers to have access to top-quality materials for your ADU project.
Embracing Colorado's ADU Boom
Future-Proof Your
Home with Custom ADUs
Build smarter, live better, and unlock long-term value with a custom Accessory Dwelling Unit by G2 Construction.
Build With UsEmbracing Colorado's ADU Boom
The landscape for residential development in Colorado is shifting. Thanks to new top-down legislation, it has never been easier for homeowners to build Accessory Dwelling Units (ADUs), also known as Additional Dwelling Units or carriage houses. For the first time, local votes can no longer block these builds — municipalities are now actively encouraging them to support housing flexibility and density. G2 Construction is a team of experienced ADU builders ready to help Denver Metro homeowners tap into the benefits of this long-awaited change. As the legislation spreads and cities like Loveland, Fort Collins, and Greeley follow suit, we're here to help.
Professional Craftsmanship
G2's team is composed of expert and passionate builders who are dedicated to exceptional results.
Seamless Building Experience
From designing to coordinating with local building departments, we'll make the entire process a breeze.
Get our Downloadable 2025 Greater Denver ADU Guidelines here:
2025 Greater Denver ADU Guidelines
01 — Legislation
Understanding the New Legislation
Recent legislation passed in Colorado removes many of the previous roadblocks for ADU construction. Cities and counties are now required to allow ADUs in single-family residential zones, making it simpler than ever for homeowners to add secondary living spaces to their properties. Whether you're considering an in-law suite, rental unit, or detached guest house, now is the time to build.
02 — Zoning
Project Expectations and Zoning Rules
In Denver County and similar municipalities, ADUs must be placed in the rear 35% of your lot. Side and rear setbacks depend on your lot's width and whether it has alley access. Visual compatibility with your main house is required, meaning the ADU must look like it belongs — no shipping containers or radically different styles. Size limitations apply, and mobile homes or RVs do not qualify as legal ADUs.
Accessory Dwelling Unit (ADU) Experts
Our expert team of architects, builders, and designers specializes in creating Accessory Dwelling Units (ADUs) tailored to your unique vision. We excel in collaborative efforts, ensuring your ADU reflects your individual style and requirements.
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Why More Homeowners Are Building ADUs Now
There's never been a better time to build. With zoning restrictions eased and new legislation clearing the path, ADUs are now a smart, accessible way to expand your living space. Whether you're creating a home for extended family, generating rental income, or setting up a private office, an ADU adds lasting value to your property. Homeowners throughout Denver and Northern Colorado are taking advantage of this opportunity — and our team is here to make the process simple.
2025 Greater Denver ADU Guidelines The Right Fit
Is an ADU
Right Choice for You?
Additional Income
You want to generate a passive income stream by renting out your ADU.
Multigenerational Living
You want to accommodate aging parents, adult children, or other family members who want to live independently while still being close to their loved ones.
Sustainable Living
You want to promote sustainable development by making more efficient use of existing infrastructure and reducing the need for urban sprawl.
ADU Options
Explore Your ADU Options
From Detached Cottages to Attached Suites
As you consider adding an ADU to your property in Denver or Northern Colorado, it's important to understand the different forms they can take. The right choice depends on your property, your goals, and your budget. G2 Construction has the expertise to build a variety of ADU types, ensuring a perfect fit for your home.
Often called a backyard cottage or granny flat, a detached ADU is a standalone structure built from the ground up. It offers the most privacy for both you and its occupant, making it a premier choice for rental income or a true guest house. We see these frequently in Denver neighborhoods where lot sizes can accommodate a beautiful, separate tiny home.
An attached ADU is built as a physical extension of your main house, sharing one or more walls. This is an excellent way to create an in-law suite or a space for adult children, keeping family close while maintaining separate living quarters. Our team ensures the addition blends seamlessly with your home's existing architecture.
A popular and cost-effective option across Northern Colorado, from Fort Collins to Greeley, is converting an existing garage into a fully functional living space. This approach sustainably utilizes your property's existing footprint to create a modern, comfortable home.
Creative and Internal ADU Conversions
Carriage House ADUs. Also known as a carriage house, this is a highly efficient design where the living unit is built above a new or existing garage. This preserves your yard space and is a classic look that fits well in many historic Denver communities. It offers great privacy and a unique vantage point.
Internal Conversions & JADUs. Converting an underutilized basement or another part of your home is often the fastest way to create a new dwelling. For basement ADUs, we can create a separate exterior entrance for true independence. JADUs are smaller units (typically under 500 sq. ft.) created within your home's main footprint, perfect for a single occupant. Homeowners in Loveland and surrounding areas are increasingly exploring this option.
Free Resource — 2025
Download Our ADU Guide
The Greater Denver ADU Guidelines — everything you need to know about zoning, permits, design standards, and getting started.
The G2 Standard
Transforming Visions Into
Exceptional ADUs
At G2 Construction, we bring your dream ADU to life. Dedicated to superior craftsmanship and meticulous attention to detail, we pride ourselves on constructing ADUs that not only meet but exceed your expectations.
Start to Finish
Your ADU Project — Handled Start to Finish
From design and permitting to construction and final inspection, we guide you through the entire process. Our team understands the new legislation, local zoning requirements, and how to design a unit that blends beautifully with your existing home while maximizing usable space.
Gallery
Visualize Your
Future ADU
Explore our gallery to see the transformation of visions into reality, illustrating the endless possibilities for your ADU project.
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Talk to Your Local ADU Expert Builders
Hear From Satisfied Homeowners
G2 Construction is a team of experienced ADU builders ready to help Denver Metro homeowners tap into the benefits of this long-awaited change. As the legislation spreads and cities like Loveland, Fort Collins, and Greeley follow suit, we're here to help. If you have questions about ADUs — reach out!