Home Additions & ADUs In Northern Denver & Front Range
Helping Colorado Homeowners Create the Space Their Family Has Outgrown
Why Homeowners Choose Christie's for Their Addition or ADU Project
Because Your Family Has Grown
And Your Home Should Grow With It
For more than 25 years, Christie’s has helped homeowners expand their space to match the life they are actually living. The new baby who needs a room. The aging parent who needs a place nearby. The adult child who needs independence without moving across town. The home office that has outgrown the kitchen table. That is what makes home additions and ADUs so personal.
At Christie’s Design/Build Remodeling, we look beyond square footage. We listen to how your household is changing, what feels cramped or missing, and what kind of space would make daily life feel easier and more connected. When you choose Christie’s, you are choosing a team with the experience, steady communication, and proven process it takes to turn a growing family’s need into a thoughtfully built addition they will use for years to come.
IN BUSINESS
25+ Years
Helping homeowners build the space their growing household actually needs.
OUR MODEL
Design/Build
One experienced team taking your addition or ADU from the first conversation all the way to a finished, permitted space.
WHERE WE WORK
North Denver Metro
Additions and ADUs designed and built for homeowners in Erie, Westminster, Boulder, Broomfield, Brighton, and surrounding Front Range communities.
PEACE OF MIND
5-Year Warranty
Confidence that stays with you long after your addition or ADU is built and move-in ready.
What Makes A Successful Home Addition or ADU
A Great Addition
Is About More Than Adding Square Footage
A well-designed home addition should feel natural from the moment you step into it. It should give the person or family using it the room they need to breathe, work, rest, or simply exist without crowding everyone else out. At Christie’s Design/Build Remodeling, we start by understanding how your household actually lives, then design an addition or ADU that fits your property, your family’s needs, and the way you want your home to function for the next chapter of life.
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Seamless Connection
A well-planned addition should feel like it was always part of the home, not something bolted on after the fact.
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Purpose-Built Space
Every room in your addition should be sized and laid out to serve a clear purpose, not just fill square footage on a floor plan.
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Built For Real Life
Whether it is a shared living space or a private ADU suite, the layout should naturally support the people using it every day.
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A Finish That Feels Intentional
From exterior materials to interior finishes, every detail of your addition should tie back to the character of your existing home.
Home Addition & ADU Services
Everything Your Home Addition Needs
To Feel Like It Was Always There
A home addition or ADU touches nearly every part of how your property functions and how your family lives in it. Christie’s helps Northern Denver and Front Range homeowners think through what they actually need, whether that is a connected family room, a private suite for aging parents, a rental unit above the garage, or a detached backyard cottage. The goal is not just to add square footage. It is to add space that feels purposeful, well-designed, and completely at home with everything around it.
Space Planning & Layout
A Layout That Makes the New Space Work the Way You Need It To
Adding square footage only solves the problem if the layout is right. A poorly planned addition can feel disconnected from the rest of the home, leave traffic patterns awkward, or create rooms that look large on paper but function poorly in real life. Christie’s helps Northern Denver homeowners think through how new space connects to existing rooms, where natural light should come from, how occupants will move through the addition day to day, and how the new footprint fits the lot. Good space planning is what turns square footage into a room people actually want to be in.
Built-In Storage & Organization
Storage That Makes Your New Space Feel Truly Finished
A home addition can be beautiful on the outside and still feel impractical if the storage and organization inside were not thought through from the start. Christie’s plans every addition and ADU with livability in mind, making sure closets, built-ins, cabinetry, and utility spaces are sized for the people who will actually use them. From bedroom closets and bathroom vanity storage to kitchenette organization in a detached ADU, we make sure the finished space works as well as it looks and stays functional long after move-in day.
Exterior & Interior Finishes
Finishes That Tie Your Addition To The Rest Of Your Home
The finishes you choose for your addition say as much about the home as the layout itself. Siding, rooflines, windows, flooring, and interior trim all have to read as part of one cohesive house, not a visible afterthought. Christie’s helps homeowners select exterior and interior materials that match the character of the existing structure while still giving the new space its own sense of purpose. Whether you want a seamless match or a subtle, modern update, the right finishes make your addition feel complete, considered, and genuinely part of the home.
Lighting, Plumbing & Mechanical
The Systems That Make the Addition Feel Complete
Getting the systems right inside an addition is just as important as getting the walls and windows right. Lighting choices shape how a room feels throughout the day, from bright and functional in the morning to warm and comfortable in the evening. For ADUs and full additions, Christie’s also coordinates plumbing, electrical, and HVAC so every system is properly sized and integrated. These details rarely show in the finished photos, but they are what determine whether the space feels like a real, livable part of your home for years to come.
Finishes & Interior Details
An Addition That Looks Like It Grew With Your Home
The interior finishes are what make an addition feel like part of your home rather than something bolted on afterward. Flooring, trim, paint colors, hardware, tile, and lighting all work together to tie the new space back to the rest of the house. Christie’s helps Front Range homeowners make selections that feel cohesive and personal without turning the process into a full-time job. The goal is a finished addition that blends in so naturally, guests will wonder if it was always part of the original plan.
Our Home Addition & ADU Process
A Clear Path To the Addition or ADU Your Property Has Been Ready For
Adding onto your home or building an ADU involves a lot of moving pieces, but the process should feel organized and understandable at every step. Christie’s Design/Build guides Northern Denver and Front Range homeowners from early planning through final walkthrough with honest communication and a team that stays involved from start to finish. Every part of the process is built around making sure the finished space works for your family, your property, and your long-term plans.
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Initial Consultation
We begin with a conversation, either over the phone or in person, to understand what is driving your interest in an addition or ADU. We want to know how your family is using your current space, what you wish you had more of, and what you hope the new square footage will make possible. From there, we talk through your goals, your timeline, and your investment range.
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Planning & Budgeting
Our team helps you think through the early direction of your addition or ADU with layout concepts, design options, and a realistic look at what fits your property and your budget. This step gives you a clear picture of what is possible before you commit to the full design and construction process.
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Design & Development
Once you are ready to move forward, we develop the full scope of your addition or ADU. This includes the floor plan, exterior design, structural details, interior finishes, and mechanical systems. You will be able to review how the project is taking shape before construction starts, so everything feels right before we break ground.
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Permitting & Site Preparation
Before construction begins on your addition or ADU, Christie’s handles the coordination that keeps things on track. From pulling permits and ordering materials to scheduling subcontractors and preparing the site, we work through the logistics so your project can move forward smoothly and on schedule.
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Construction
This is where your addition or ADU takes shape. Our crews arrive prepared, treat your property with care, and communicate with you as the project progresses. We know that construction on an occupied home affects your daily routine, so we focus on keeping the work organized, the site clean, and the schedule as predictable as possible from week to week.
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Final Walk-Through
Once construction wraps up, we walk through the finished addition or ADU with you and go over every detail together. This is the moment when months of planning, selections, and site work come together into a space that is ready for the way your family actually lives, whether that means a new bedroom suite, a rental unit, or a home office you can finally spread out in.
Our Home Addition & ADU Process
A Clear Path To the Addition or ADU Your Property Has Been Ready For
Adding onto your home or building an ADU involves a lot of moving pieces, but the process should feel organized and understandable at every step. Christie’s Design/Build guides Northern Denver and Front Range homeowners from early planning through final walkthrough with honest communication and a team that stays involved from start to finish. Every part of the process is built around making sure the finished space works for your family, your property, and your long-term plans.
.01
Initial Consultation
We start with a phone call or in-person meeting to understand what is driving your interest in an addition or ADU. Whether you need more space for a growing family, a separate unit for rental income, or a place for aging parents to live nearby, we want to understand your goals, timeline, and budget from the start.
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Planning & Budgeting
Our team helps you think through the early direction of your addition or ADU project, including how the space fits your lot, your home, and your long-term plans. This step gives you a realistic picture of what is possible before you commit to design details, permits, and construction planning.
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Design & Development
Once you are ready to move forward, we develop the full details of your addition or ADU. This covers layout, structural requirements, interior finishes, plumbing and electrical needs, and how the new space will connect to your existing home. You will see the plan clearly before any work begins.
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Permitting & Site Preparation
Before construction begins on your addition or ADU, Christie’s handles the coordination that keeps things on track. From pulling permits and ordering materials to scheduling subcontractors and preparing the site, we work through the logistics so your project can move forward smoothly and on schedule.
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Breaking Ground On Your Addition
This is where your home addition or ADU takes shape. Our crews arrive prepared, treat your property with care, and keep you informed at every stage. We know construction disrupts daily life, so we work with a clear schedule and stay in close contact so you always know where things stand and what comes next.
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Final Walk-Through
Once construction is complete, we walk through the finished addition or ADU with you and review every detail together. This is the moment when months of planning and careful work become a usable space, whether that means a guest suite, a rental unit, a home office, or room for family to stay closer to home.
Popular Home Addition & ADU Features In The Northern Denver & Front Range Area
Addition & ADU Features Built
Around How Colorado Families Actually Use Their Homes
Homeowners throughout the Northern Denver and Front Range area are thinking carefully about how to get more from the homes they already own. In communities across Erie, Westminster, Broomfield, Brighton, Boulder, Thornton, and surrounding areas, families are looking for ways to add space for aging parents, generate rental income through a backyard ADU, or simply create room that matches how their household has grown. Christie’s helps homeowners plan additions and ADUs that feel like a natural part of the home, not an afterthought, so the new space works as well on day one as it does years down the road.
Attached Home Additions
More Living Space Without Moving
For many Northern Denver and Front Range homeowners, an attached addition is the most practical way to expand living space without leaving the neighborhood they love. It connects directly to the existing home and can serve as a primary bedroom suite, a family room, or a multi-purpose living area.
Open-Concept Addition Layouts
A Separate Space That Stays Connected
A detached ADU gives homeowners flexibility, whether for rental income, a guest suite, or a place for family members who want their own space while staying close. It sits on your existing lot and adds real long-term value to your Northern Denver or Front Range property.
Second-Story Additions
Room To Grow Without Relocating
A second-story addition makes use of your existing footprint, giving your family more square footage without expanding into your yard. It is a smart option for lots where building out is limited but building up is possible.
Storage & Built-In Features
Built-In Storage From The Start
Custom built-ins, dedicated storage walls, closet systems, and utility areas can make your new addition or ADU feel organized and livable from the moment you move in.
Exterior Siding & Finish Details
Finishes That Tie It All Together
Exterior finishes and siding choices help your addition blend naturally with your existing home so the new space looks intentional rather than tacked on. Christie's helps homeowners choose materials and details that tie the whole project together.
Areas We Service
Helping Colorado Homeowners
Expand Their Homes With Additions And ADUs
Every home has its own story, and properties across the Northern Denver and Front Range area are no different. From established neighborhoods in Westminster and Boulder to growing communities in Erie, Broomfield, Brighton, Thornton, and beyond, homeowners are looking for ways to add space, create income potential, and make room for the people who matter most. Christie’s Design/Build Remodeling brings more than 25 years of experience to home additions and ADU projects throughout the region, helping homeowners expand thoughtfully rather than uproot entirely.
- Arvada
- Boulder
- Brighton
- Broomfield
- Commerce City
- Erie
- Fort Lupton
- Firestone
- Frederick
- Greeley
- Lafayette
- Longmont
- Louisville
- Loveland
- Northglenn
- Thornton
- Westminster
- Windsor
Explore Our Local Home Addition And ADU Expertise
Weld County
Boulder County
Adams County
Jefferson County
Broomfield County
Larimer County
Our Reviews
Trusted By Homeowners Throughout
Northern Denver and the Front Range
Choosing a team for your home addition or ADU means trusting people with a major change to the way your home and family will function for years to come. Our team brings clear communication, thoughtful planning, and respect for your property from the first conversation through the final walkthrough. Homeowners across the North Denver Metro continue to choose Christie’s because they want a new space that feels intentional, connected, and built around the way their family is growing.
Home Addition And ADU FAQs
What Homeowners Want to Know
Before Breaking Ground on an Addition or ADU
Adding onto your home raises a lot of questions. Homeowners want to understand what the process looks like, how long it takes, what the permit requirements are in their city, and how to make sure the new space feels like it was always part of the home. Christie’s helps homeowners throughout the Northern Denver and Front Range area feel prepared and informed before the first wall goes up.
What is the difference between a home addition and an ADU?
The timeline depends on the size and type of addition or ADU, the scope of structural work, permit timelines in your municipality, and material selections. Christie’s walks through the expected schedule early in the process so you have a realistic picture before construction begins.
Do I need a permit to build a home addition or ADU in the Northern Denver area?
Yes. Christie’s Design/Build Remodeling guides the design, space planning, selections, and permitting so your addition or ADU project stays organized from day one. You are not left sorting out the details or coordinating multiple contractors on your own.
How long does a home addition or ADU project typically take?
Not always. Some homeowners need a full addition to gain square footage, while others can achieve their goals by reconfiguring existing space. ADUs can range from modest studio conversions to fully equipped guest houses. Christie’s helps you evaluate what your property allows and what approach makes the most sense for your situation.
Can I live in my home while an addition is being built?
Homeowners in Erie, Westminster, Broomfield, Brighton, Boulder, Thornton, and nearby Front Range communities are asking for primary suite additions, detached ADUs for family or rental use, expanded main-floor living areas, garage conversions, and spaces that feel seamlessly connected to the existing home.
What types of home additions are most popular along the Front Range?
In most cases, yes, though it takes some planning. Christie’s communicates clearly about which areas of your home will be affected during construction so your household can stay comfortable and know what to expect at each phase.
Can an ADU be used as a rental unit in Colorado?
Yes. Christie’s manages the planning, permitting, material ordering, scheduling, and site preparation before construction begins. That coordination helps your project move forward with fewer delays and surprises.
Why choose Christie's for a home addition or ADU on the Front Range?
For more than 25 years, Christie’s has helped Front Range homeowners add space that feels intentional and well-crafted. Their design/build process, straightforward communication, and 5-year warranty give homeowners confidence from the first consultation through the final walkthrough.
Home Addition And ADU Gallery
See What Your Property Could Look Like
A home addition or ADU is easier to envision when you can see how the details come together. From thoughtfully designed bonus rooms and primary suites to fully equipped detached ADUs and seamless structural expansions, Christie’s builds spaces that feel like a natural part of the home. Browse our project gallery for inspiration as you start thinking through what your own property could look like with the right addition.
Start Your Home Addition Or ADU
Let's Build The Space
Your Family Has Been Thinking About
Your home should have room for the life your family is growing into, not force you to choose between staying and having the space you need. Whether you are planning a larger living area, a private suite for family, a detached ADU, or a complete addition, Christie’s Design/Build Remodeling is here to help you move forward with a thoughtful plan and a team you can trust.
From The Blog
Make Room For
What Comes Next
Planning a home addition or ADU comes with plenty of decisions, especially when you want the new space to feel connected to your home and built around what your family needs next. Our blog shares practical guidance on layout, permitting, budgeting, design, privacy, and the choices that help turn extra square footage into a space that feels natural, useful, and truly worth adding.
