Additions and ADUs in Northglenn, CO
Building the Space Your Family Has Been Waiting For
Why Northglenn Homeowners Choose Christie's
Because the Ranch You Bought
Has More to Give Your Family Than You Know
For more than 25 years, Christie’s has helped Northglenn homeowners do the math on staying, and then actually build the space that makes it the right call. A 1960s ranch with a rear yard that’s been holding onto potential for decades, finally given a detached ADU where your parent has a real front door, a full kitchen, and a Saturday morning that doesn’t require sharing your bathroom. A garage that’s been underused since you moved in, converted into a year-round living space that pays for itself over time.
At Christie’s Design/Build Remodeling, we start by being upfront about what your older Northglenn home will likely need, the electrical service upgrade, the egress work, the framing details that come standard with 1960s construction, because surprises mid-project aren’t fair to you. From Eastlake Estates to the neighborhoods along Huron Street and the established ranches near City Center, we plan additions and ADUs around the home you already own and the life you’re building in it.
In Business
25+ Years
Helping Northglenn homeowners turn 1960s ranches, rear yards, and underused garages into permitted, multigenerational living space built for the long haul.
Our Model
One Team
Your Northglenn addition or ADU moves with one coordinated team from covenant review and design through permitting, construction, and final walkthrough.
Where We Work
Northglenn, CO
Serving homeowners throughout Eastlake Estates, Parkway Estates, Northglenn Heights, City Center, and established neighborhoods across Northglenn.
Peace Of Mind
5-Year Warranty
Your new Northglenn addition or ADU stays warranted after construction closes, so you can settle into the space with genuine confidence.
What Makes Additions & ADUs Different In Northglenn
More Space Should Feel
Like It Grew Right Out of the House
Adding onto a Northglenn home means you’re starting from a very specific baseline, a 1960s or 1970s ranch with 2×4 framing, a 100-amp panel that was never designed to support an independent unit, and a rear yard that finally has a real job to do now that Colorado’s ADU law has cleared the regulatory path. Homes in subdivisions across the city may also carry HOA covenants that operate completely independently of city permits, so verifying your CC&Rs is a required first step, not an afterthought. At Christie’s Design Build, we work through the full picture before design is finalized, structure, utility capacity, lot setbacks, and covenant exposure, so the number in front of you reflects the real project. The goal is an addition or ADU in Northglenn, CO that fits the home so naturally your family can’t imagine the house without it.
.01
Northglenn Ranches Have Real Potential
.02
Northglenn's Ranch Bones Set the Rules
.03
1960s Panels Rarely Have Enough Left
.04
Front Range Seasons Shape Every Material Call
Northglenn, CO Neighborhoods
More Room Without Leaving
the Northglenn You've Put Down Roots In
Huron Crossing
When a Contemporary Home Still Has Family Left to Fit
Webster Lake Terrace
Grow the Space Without Disturbing the Roots That Make It Home
Highlands At Westbury
When a Townhome Community Makes Room for What Family Actually Needs
Fox Run
Stay in the Home That Already Fits Your Life
Hillcrest
Give This Home the Room Your Family Actually Needs
Our Northglenn Additions & ADU Process
From the First Conversation to the Day Someone Calls It Home
Adding an addition or ADU in Northglenn brings questions that are specific to your lot, your subdivision, and the 1960s or 1970s ranch already standing on it, the 100-amp electrical panel that needs upgrading before an independent unit can function, the HOA covenant in your named subdivision that operates separately from Colorado’s new ADU law, the roofline junction where new and existing structure have to meet without letting water in. Our process walks each project through site evaluation, design, permitting, utility coordination, construction, and final completion so you always know where things stand and the finished space feels like it was always part of the home.
.01
Site & Structure Review
.02
Goals & Design Direction
.03
Detailed Project Planning
.04
Permits & Trade Coordination
.05
Construction & Communication
.06
Final Review & Completion
Our Northglenn Additions & ADU Process
From the First Conversation to the Day Someone Calls It Home
Adding an addition or ADU in Northglenn brings questions that are specific to your lot, your subdivision, and the 1960s or 1970s ranch already standing on it, the 100-amp electrical panel that needs upgrading before an independent unit can function, the HOA covenant in your named subdivision that operates separately from Colorado’s new ADU law, the roofline junction where new and existing structure have to meet without letting water in. Our process walks each project through site evaluation, design, permitting, utility coordination, construction, and final completion so you always know where things stand and the finished space feels like it was always part of the home.
.01
Site & Structure Review
.02
Goals & Design Direction
.03
Detailed Project Planning
.04
Permits & Trade Coordination
.05
Construction & Communication
.06
Final Review & Completion
What Northglenn Homeowners Want From Their Addition or ADU
More Room for the
Family You're Keeping Close
Room for Who's Coming Home
Space That Reads as Home
In Northglenn's many named subdivisions, most ranches were designed for smaller households and haven't kept pace with how families actually live now. A thoughtful addition or ADU can create a genuinely independent suite for aging parents, give an adult child their own entrance, or finally open a main living area that's felt too tight for years.
Layouts That Grow With You
Room Built Around You
Most Northglenn ranches are still carrying the same floor plan they had in 1968, and the daily friction shows. Reconnecting old and new space with real flow and no jarring transitions is where these projects start feeling like a home again.
Ranch Layouts, Finally Organized
Their Own Space, Finally
Northglenn's rear yards open real possibilities for additions that do more than expand square footage. Built-in storage, a dedicated mudroom, and a sensibly planned laundry room make the finished space feel calmer and genuinely easier to move through every day.
Together, With Private Space
Together, But Not Crowded
For homeowners in Northglenn's established subdivisions, a permitted ADU or in-law suite with a private entrance can make multigenerational living feel genuinely sustainable instead of improvised. A full kitchen, separate laundry, and step-free access change everything about how that arrangement feels for everyone involved.
Matched to Northglenn's Winters
Built for Northglenn's Real Life
Northglenn additions have to hold up against freeze-thaw cycles, hail seasons, and the roofline water management risks that come with connecting new construction to a 1960s structure. Exterior cladding, proper flashing at every junction, and interior finishes chosen for real Front Range conditions keep the new space performing exactly the way it should, year after year.
What To Consider When Building An Addition or ADU In Northglenn
Build the Space Your Northglenn Home
Has Always Had Room For
Who is this space really for, and what does their day actually need to feel like inside it?
Are you staying in this home long enough for the investment to work the way you're hoping?
Does your subdivision's HOA have any say in what you can build, and have you actually checked?
What do you want the new space to feel like once construction is just a memory?
Our Reviews
Trusted by Northglenn Homeowners
With the Spaces Their Families Settle Into
Areas We Service Across Northglenn
The Northglenn Home You Love,
Built for Everyone Who Lives There
- Northglenn Heights
- Parkside
- Coral Hills
- Northbrook
- Eastlake
- City Center
- Autumn Valley
- Northglenn Estates
- Huron Heights
- Westfield
- Sunset Ridge
- Thornton View
Other Areas We Service
Weld County
Boulder County
Adams County
Jefferson County
Broomfield County
Larimer County
Northglenn Addition & ADU Frequently Asked Questions
The Questions Behind
Staying in Northglenn and Building What's Next
Does Colorado's new ADU law mean I can actually build a rental unit in my Northglenn backyard now?
My Northglenn ranch was built in the 1960s. What surprises should I actually expect when we start an addition?
What's the difference between finishing my basement as an ADU versus building a detached unit in the backyard?
My Northglenn neighborhood has an HOA. Can they block my ADU even if the city approves it?
How long does a home addition or ADU project actually take from our first conversation to move-in?
Will my addition or ADU actually look like it belongs on my house, or will it read as an obvious add-on?
We want the ADU for my aging parent, what design features make that actually work long-term?
Does adding a permitted ADU actually increase what my Northglenn home is worth at resale?
Start The Conversation
Stay in Northglenn
and Build the Space Your Family Needs
Our Other Remodeling Services
From The Blog
Your Northglenn Ranch
Already Has Room for the People You Love


