Contact Us
(303) 833-4715
Contact Us
(303) 833-4715

Northern Denver & Front Range's Premier Design-Build Firm

Additions and ADUs in Brighton, CO

Making Room for the People Who Matter Most to You

Start Planning Your Project

Why Brighton Homeowners Choose Christie's

Because the Home Your Family Calls Home
Should Have Room for Everyone Who Matters

For more than 25 years, Christie’s has helped Brighton homeowners create the space their lives have been asking for. A self-contained in-law suite so your parent can be close without either of you giving up privacy. A detached backyard ADU that turns a generous flat lot into something that actually works for your whole family. Extra square footage that finally answers the question your current floor plan never could. The goal is always the same: make staying feel better than leaving.

At Christie’s Design/Build Remodeling, we start by understanding why more space matters to you right now. We look at where the daily friction lives, how your household has changed, and what the years ahead are going to ask of your home. From established ranch neighborhoods near downtown Brighton to newer subdivisions east of I-76 and the growing communities along Baseline Road, we plan additions and ADUs around the home you already have and the life you’re building inside it.

In Business

25+ Years

Helping Brighton homeowners make more room for aging parents, returning adult children, and the next chapter of life at home.

Our Model

One Team

Your Brighton addition or ADU stays with one coordinated team from early design through construction, finishing, and the final walkthrough.

Where We Work

Brighton, CO

Serving homeowners throughout Brighton East, Bromley Park, Platte Valley, Todd Creek, and established neighborhoods across Brighton.

Peace Of Mind

5-Year Warranty

Your new addition or ADU in Brighton is backed by a warranty, so you can settle into the space with real confidence.

What Makes Additions & ADUs Different In Brighton

When It's Done,
It Should Feel Like It Was Always There

Adding onto a Brighton home means starting with what you already have, a flat lot with real room to work with, a production-builder floor plan that was never designed for the household you have today, and a neighborhood full of homes you genuinely don’t want yours to resemble. At Christie’s Design/Build Remodeling, we look at the whole picture before anything gets drawn: the existing structure, the utility proximity, the setbacks, and the finish quality that will make your addition or ADU read as custom work rather than another generic build. Brighton’s eastern-plains lots give you options that smaller infill lots closer to Denver simply don’t, detached backyard ADUs, garage conversions, room additions that don’t feel squeezed. The goal is space that fits your family’s life so naturally that guests couldn’t tell you when it was built.

.01

Brighton Homes Share a Common Starting Point

Brighton’s ranch and two-story production homes each open up differently for an addition or ADU. We look at the existing structure and lot first so we’re building from the right starting point.

.02

Your Lot and Floor Plan Set the Stage

Brighton’s production-builder ranches follow similar floor plans, but each home has its own structural story. We read that story first so your addition connects the way it should, as one home, not two.

.03

Hidden Systems Can Shape Your Plans

Opening a garage or exterior wall on a pre-2010 Brighton home can surface electrical, plumbing, or insulation gaps. Catching those during design keeps the project honest and the timeline on track.

.04

Brighton Weather Demands Thoughtful Material Choices

Brighton’s open-plains exposure means real hail, hard freeze-thaw cycles, and wind that tests every exterior material you choose. We plan for all of it so the new space stays comfortable and looks right for years.
See Our Work

Brighton, CO Neighborhoods

Room to Stay Together,
Right Here in Brighton

Brighton is filled with homes that were built for a certain version of life, and that version has quietly changed. Maybe a parent’s health shifted, or an adult child came back, or the family just kept growing past what three bedrooms on a single story can hold. The production builder who framed this house in 2003 never planned for the household you’re living in today. That’s not a flaw, it’s just the reality of how families evolve. The good news is that Brighton’s flat, generous lots give you real options: a detached ADU out back, a garage conversion that becomes a full in-law suite, a room addition that finally reads like it always belonged there. Brighton City Council has waived ADU impact fees, and state law now protects your right to build one even in an HOA community. We start by asking what your family actually needs right now, and what would make staying here feel completely right for the years ahead.

Eagle Shadow

Give Your Eagle Shadow Home the Space Your Family Actually Needs

Eagle Shadow is the kind of neighborhood families settle into and don’t want to leave, big lots backing up to Todd Creek, room for kids to actually run, and a quiet rural edge that’s hard to replicate closer to Denver. When your floor plan stops keeping up with your household, that’s where we come in. Whether it’s a detached ADU for a parent who needs their own front door, a primary suite addition that finally fits your life, or a garage conversion that becomes a real self-contained space with a full kitchen, we design from the existing rooflines and lot outward so the finished result feels like it was always there.

Brighton Crossing

Grow the Space Without Losing the Home You Chose

Homes in Brighton Crossing already come with thoughtful floor plans, modern finishes, and the kind of community your family actually uses, but even a well-designed 2,800 square foot craftsman can run out of answers when a parent moves in or your household quietly outgrows its original shape. An addition here isn’t about patching a problem; it’s about adding what the builder simply couldn’t anticipate, a private in-law suite with its own entrance, a dedicated office that isn’t also the guest room, or a detached ADU tucked into that generous backyard. We work within Brighton Crossing’s architectural review process from day one, so what gets built feels like it always belonged.

Brighton Ridge

When Family Grows, Your Home Should Too

Brighton Ridge homes were built for growing families, but even a well-planned floor plan can run out of answers when a parent’s health shifts or an adult child comes back. A custom addition or ADU gives that family member a real home, full kitchen, private entrance, their own space, without anyone sacrificing privacy. Because Brighton Ridge carries HOA architectural review, we handle that approval process alongside the city permit, so nothing stalls mid-project. Every roofline, exterior finish, and interior detail is chosen to feel like it always belonged here.

Bromley Park

Make Room for the Family That's Here Right Now

Bromley Park’s late-1990s homes were built for a version of family life that doesn’t always match what’s happening inside them today. When a parent’s health shifts, an adult child comes back, or the school-age kids suddenly need room to breathe, those original floor plans just don’t have an answer, and there’s no shame in that; they were never designed for this moment. A custom addition or detached ADU gives your household the private, fully finished space it actually needs without swapping out the neighborhood, the greenbelt walks, or the community your family already knows. We work around your existing lot layout, the HOA’s architectural review process, and the home’s original construction so everything that gets added looks like it always belonged there.

Baseline Lakes

Build What the Builder Left Out

Baseline Lakes homeowners chose this neighborhood because the lots actually give you room, and sooner or later, that room starts asking to be used. When a parent needs to move closer or an adult child comes back, a finished basement ADU or a detached backyard suite becomes the answer a production builder never built in. These are newer homes with modern foundations and mechanical systems already in place, which means we can move quickly and work cleanly. What matters most to families here is that the addition feels custom and intentional, not like something bolted on after the fact. We design every space to carry the same finish quality and proportions as the home you already love.

Our Brighton Additions & ADU Process

From the First Conversation to the Day You Move In

Adding an addition or ADU in Brighton means working with a housing stock that was built for one kind of family and now needs to serve a completely different one. A 2005 ranch on a flat eastern-plains lot has different possibilities, and different constraints, than a two-story near the newer corridors to the south. Our process walks every Brighton project through site evaluation, design, permitting, utility coordination, construction, and final walkthrough so the finished space feels like it was always part of the home, not something added on.

Start Planning Your Project
(303) 833-4715

.01

Site & Structure Review

Your Brighton project starts with us actually understanding your property. We look at your lot size, existing structure, setbacks, garage proximity to utilities, and how your household uses the space today. We also assess foundations, roof conditions, and load-bearing walls so we know where new square footage can connect without compromise. That honest starting point keeps the project grounded before any design decisions get made.

.02

Goals & Design Direction

Before plans take shape, we talk through what’s actually missing for your family right now. Maybe it’s a private entrance and full kitchen for a parent who’s moving closer, or a self-contained space an adult child can genuinely call their own. We look at how your Brighton home sits on its lot, how your household moves through it, and what the new space needs to feel like, not just look like, once it’s finished.

.03

Detailed Project Planning

Once the direction is clear, we translate it into a plan Brighton’s Building Division can approve and your contractor can build without guesswork. That means coordinating foundation engineering, soils reports, utility connections, insulation requirements, and interior layouts around your specific property. You’ll understand exactly how the addition or ADU comes together, every decision made in design, so nothing surprises you once construction is underway.

.04

Permits & Trade Coordination

Before construction begins, we handle the permits, inspections, and trade scheduling the Brighton Building Division requires for your project. We manage the soils report coordination, utility service letters for detached ADUs, review timelines, and material lead times so nothing stalls once work starts. You get one clear point of contact instead of tracking down contractors, engineers, and inspectors on your own.

.05

Construction & Communication

With permits approved and approvals in hand, your new space starts taking real shape. Framing, insulation, mechanical systems, drywall, flooring, cabinetry, and finishes all move forward under one coordinated team. Whether it’s a detached backyard ADU, a garage conversion in-law suite, or a primary suite addition, we keep you informed at every stage while protecting the quality and continuity between your new space and your existing Brighton home.

.06

Final Review & Completion

As construction wraps up, we walk the completed addition or ADU with you and go through the details together, finishes, fixtures, the way the new entrance feels from the outside. We address any remaining items and make sure the space connects naturally to the rest of your home. The goal is a finished project your family can settle into right away, one that feels intentional and complete from day one.

Our Brighton Additions & ADU Process

From the First Conversation to the Day You Move In

Adding an addition or ADU in Brighton means working with a housing stock that was built for one kind of family and now needs to serve a completely different one. A 2005 ranch on a flat eastern-plains lot has different possibilities, and different constraints, than a two-story near the newer corridors to the south. Our process walks every Brighton project through site evaluation, design, permitting, utility coordination, construction, and final walkthrough so the finished space feels like it was always part of the home, not something added on.

.01

Site & Structure Review

Your Brighton project starts with us actually understanding your property. We look at your lot size, existing structure, setbacks, garage proximity to utilities, and how your household uses the space today. We also assess foundations, roof conditions, and load-bearing walls so we know where new square footage can connect without compromise. That honest starting point keeps the project grounded before any design decisions get made.

.02

Goals & Design Direction

Before plans take shape, we talk through what’s actually missing for your family right now. Maybe it’s a private entrance and full kitchen for a parent who’s moving closer, or a self-contained space an adult child can genuinely call their own. We look at how your Brighton home sits on its lot, how your household moves through it, and what the new space needs to feel like, not just look like, once it’s finished.

.03

Detailed Project Planning

Once the direction is clear, we translate it into a plan Brighton’s Building Division can approve and your contractor can build without guesswork. That means coordinating foundation engineering, soils reports, utility connections, insulation requirements, and interior layouts around your specific property. You’ll understand exactly how the addition or ADU comes together, every decision made in design, so nothing surprises you once construction is underway.

.04

Permits & Trade Coordination

Before construction begins, we handle the permits, inspections, and trade scheduling the Brighton Building Division requires for your project. We manage the soils report coordination, utility service letters for detached ADUs, review timelines, and material lead times so nothing stalls once work starts. You get one clear point of contact instead of tracking down contractors, engineers, and inspectors on your own.

.05

Construction & Communication

With permits approved and approvals in hand, your new space starts taking real shape. Framing, insulation, mechanical systems, drywall, flooring, cabinetry, and finishes all move forward under one coordinated team. Whether it’s a detached backyard ADU, a garage conversion in-law suite, or a primary suite addition, we keep you informed at every stage while protecting the quality and continuity between your new space and your existing Brighton home.

.06

Final Review & Completion

As construction wraps up, we walk the completed addition or ADU with you and go through the details together, finishes, fixtures, the way the new entrance feels from the outside. We address any remaining items and make sure the space connects naturally to the rest of your home. The goal is a finished project your family can settle into right away, one that feels intentional and complete from day one.
Start Planning Your Project
(303) 833-4715

What Brighton Homeowners Want From Their Addition or ADU

A Home That Finally Has
Room for Everyone

Addition and ADU projects in Brighton are almost never about square footage for its own sake, they’re about solving something your current floor plan simply can’t handle. Maybe your mom’s health changed and a spare bedroom just isn’t enough anymore, or your adult child is back and everyone needs privacy that a 3-bedroom ranch was never designed to give. Brighton’s flat eastern-plains lots and the generous garage footprints on most subdivision homes open up real options, a full in-law suite, a detached backyard ADU, or a converted garage with its own entrance, kitchen, and HVAC zone. What Brighton homeowners want most is a space that feels custom and intentional, not like another production build tacked on to the back of the house.

Space for the Whole Family

A Home That Fits Now

In Brighton's post-2000 subdivisions, from the neighborhoods east of downtown to the newer corridors near Brighton Northeast, most homes were built for households that have since grown or changed. A well-designed addition can open the main living area, create a self-contained in-law suite, or simply give your family the breathing room the original floor plan never accounted for.

Floor Plans That Flex With You

Room for What's Next

Brighton's production-builder ranches were designed for a household that may not look like yours anymore. Connecting old space to new the right way creates better flow and rooms that actually keep up with your family.

Built-In Storage That Works

Everyone Has Their Place

Brighton's generous flat lots create real room for additions that do more than add square footage. Built-in storage, dedicated laundry, and a proper mudroom help the new space feel organized and genuinely easier to live in.

Independent Space, Still Together

Together, With Your Own Space

For Brighton homeowners dealing with a multigenerational shift, a full ADU or private suite can make living together feel like a choice rather than a compromise. A private entrance, independent kitchen, and separate living area give everyone the breathing room they need.

Finishes Built for Real Life

Built for Brighton Living

Brighton's high plains climate means hail, hard freezes, and wide-open wind exposure that can wear on materials fast. Exterior selections and finish choices that hold up through real Front Range seasons keep the new space looking and functioning the way it should for years.

What To Consider When Building An Addition or ADU In Brighton

Build the Home Your
Family Actually Grows Into

Your Brighton home was built to a floor plan, not to your family’s story, and those two things have a way of drifting apart over time. A flat eastern-plains lot, an underused two-car garage, or a generous backyard can all become something far more purposeful: a self-contained in-law suite, a detached ADU, or a custom addition that genuinely fits the way you live now. Before any design conversation begins, it helps to get honest about what the new space needs to solve, who it needs to serve, and what “right” actually feels like from the inside.

Who actually needs to live here, and how might that change in the next few years?

Think beyond the immediate situation. If your mom is moving in now because her health shifted, what does her independence look like two or three years from now? A step-free entry and wider doorways are easy to build in from the start and nearly impossible to retrofit later. The families who feel best about their Brighton ADU projects are the ones who thought a few chapters ahead, not just who’s arriving next month, but who needs to thrive here long-term.
Most Brighton homes have a two-car attached garage that spends October through April as an unusable cold zone and July as an oven. If you’re already avoiding it, it might be the most underutilized square footage on your property. A garage conversion ADU brings that footprint into genuine conditioned living space, full kitchen, private entrance, independent heat and air, and it starts with a structure that’s already there. Worth asking yourself whether you’d rather keep parking two cars or house someone you love.
Brighton’s neighborhoods are full of production-builder homes, and it’s easy to spot the additions that feel like afterthoughts, lower ceilings, different trim profiles, materials that almost match. Before you get into square footage conversations, decide how much it matters to you that the new space feels like it was always there. Raised ceilings, matched exterior materials, and a thoughtful floor plan connection aren’t luxury details, they’re the difference between a space your family uses without thinking and one that always feels a little off.
The number that tends to catch Brighton homeowners off guard isn’t the construction cost, it’s the line items that come before a single wall goes up. An engineer-stamped soils report, foundation plan, and utility service letters for a detached ADU are required submittals, not optional upgrades. Impact fees in Brighton have been waived, which helps, and the city’s pre-approved plan sets can shorten permit review. But understanding the real all-in picture from the start means no surprises mid-project and a plan you can actually commit to with confidence.

Our Reviews

Trusted by Brighton Homeowners
With the Spaces That Matter Most

Choosing a team for an addition or ADU means trusting them with more than construction. You’re trusting them with your home, your family’s daily rhythms, and a space someone you love may call their own for years to come. Our reviews reflect the honesty, care, and clear communication Christie’s brings to Brighton projects from that very first conversation through the final walkthrough.
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Areas We Service Across Brighton

Space for Everyone
Right Here in Brighton

Across Brighton, families are running into the same wall, a floor plan that made sense when you moved in and simply doesn’t anymore. From Bromley Park ranches with generous flat lots perfect for a detached ADU to Platte River Ranch two-stories where a garage conversion could finally give Mom her own front door, every property here holds a real possibility. Whether you need a fully self-contained in-law suite with its own kitchen and entrance, a room addition that brings breathing room back to your main floor, or a second story that changes everything, Christie’s builds it to feel like it was always there.

  • Ralston Valley
  • Oberon
  • Pomona Lakes
  • Whisper Creek
  • Spring Mesa
  • Olde Town Arvada
  • Allendale
  • Lake Arbor
  • Scenic Heights
  • Alta Vista
  • Club Crest
  • Hackberry Hill
Start Planning Your Project
(303) 833-4715

Other Areas We Service

Weld County

Greeley, CO
Erie, CO
Fort Lupton, CO
Firestone, CO
Frederick, CO

Boulder County

Boulder, CO
Lafayette, CO
Longmont, CO
Louisville, CO

Adams County

Commerce City, CO
Northglenn, CO
Thornton, CO

Jefferson County

Arvada, CO
Westminster, CO

Broomfield County

Broomfield, CO

Larimer County

Loveland, CO
Windsor, CO

Brighton Addition & ADU Frequently Asked Questions

The Questions Behind
Building Space That Finally Fits Your Family

Adding onto a home you already love opens up a whole new set of questions, especially in Brighton, where the lot may be generous but the floor plan was never designed for the family you have today. The answers here depend on everything from your home’s age and existing utility connections to lot dimensions, zoning, and whether you’re thinking attached or detached. Brighton also has its own building and community development requirements for additions and ADUs, including some recent changes that make the process more accessible than you might expect. These are the questions we hear most from Brighton homeowners who are ready for more room without leaving the place they’ve already made their own.

Still Have Questions?
We're Here To Help.

Contact Us
(303) 833-4715

Can I build a detached ADU in my Brighton backyard if my neighborhood has an HOA?

You can, and this is one of the questions we get most often right now. As of July 1, 2025, Colorado state law prohibits HOAs from banning ADUs outright, so a blanket ‘no ADUs’ rule in your covenants is no longer enforceable. Your HOA’s architectural review board may still require you to submit plans for approval before you apply for a building permit with the city, so there’s a sequencing step to navigate. But the door is open in a way it wasn’t a few years ago, and Brighton’s flat, generous lots make a detached backyard ADU genuinely viable here in a way that smaller infill lots closer to Denver often don’t.
Yes, Brighton City Council has waived ADU impact fees, which removes a cost line item that can be a real barrier in other Front Range cities. What it means practically is that the financial case for building an ADU here is more favorable than in many surrounding communities. It doesn’t eliminate all city fees, permit fees and plan review costs still apply, but the impact fee waiver is a meaningful distinction worth understanding before you compare Brighton to other markets. We’ll walk you through the honest, all-in picture of what permitting and fees actually look like so there are no surprises when the budget conversation starts.
Brighton received a state grant specifically to develop pre-approved ADU plan sets, designs that have already cleared structural and zoning review, so homeowners who choose one can skip much of the standard plan review process and shorten the permitting timeline. It’s a real advantage if the plan set fits your goals and your lot. That said, pre-approved plans are standardized, which means they may not account for your specific garage footprint, your family’s accessibility needs, or the exterior material choices that make an addition read as custom work rather than another production build. We can help you honestly assess whether a pre-approved path serves you or whether a fully custom design is worth the additional review time.
Yes, and honestly the attached garage is the starting point we see most often in Brighton. You already have the footprint, the roof structure, and utility proximity, which matters. What you don’t have yet is insulation, plumbing, independent HVAC, a proper foundation slab for conditioned space, or egress-compliant windows, and if your home was built before 2010, the project will trigger current energy code compliance for the new conditioned square footage. Those aren’t reasons not to do it, they’re just the real scope, and knowing them upfront is what keeps the budget conversation honest. A well-executed garage conversion can become a full in-law suite with a private entrance, complete kitchen, and its own laundry. That’s a very different space than what’s sitting out there right now.
In Brighton, there’s no city requirement that a detached ADU match the architectural style of your primary home, that restriction was removed as part of recent ADU-friendly updates. That gives you real design freedom. But here’s the honest thing we tell Brighton homeowners: the surrounding housing stock is almost entirely production-builder construction, and most people we work with want their addition to read as something more intentional than that, not just compliant, but genuinely well-designed. Exterior material selections, roofline, window proportions, these are decision points that matter to how the finished project feels from the street, and we treat them that way from the start of design.
Brighton’s Building Division has a specific submittal package for additions and ADUs. For a detached ADU, that includes a plot plan, an engineer-stamped soils report and foundation plan, and a utility service letter confirming your water and sewer connections. For a garage conversion, the scope is somewhat more contained, but energy code documentation and structural review are still part of the process. The soils report requirement is the one that most often catches homeowners off guard, it’s not optional, and it adds both time and cost to the front end of any detached project. We manage the full permit package as part of our process, so you’re not coordinating between separate engineers, designers, and city reviewers on your own.
Timelines vary by scope, and we’d rather give you an honest range than a number that sounds good and then changes. A garage conversion or attached ADU generally runs a few months in construction once permits are in hand, and permit review itself takes time that varies with city workload and plan complexity. Detached backyard ADUs involve more phases: design, soils engineering, city review, utility coordination, then construction, so the full timeline from first conversation to certificate of occupancy is longer. Second-story additions tend to fall somewhere in between, with structural engineering adding meaningful time at the front end. We’ll give you a realistic project schedule specific to your scope before you commit to anything.
A permitted, self-contained ADU, especially one with a full kitchen, private entrance, and independent systems, has a real impact on appraised value, and Brighton’s market is one where that impact is meaningful. Detached ADUs in particular tend to perform well because they function as a genuinely separate dwelling unit, which appraisers can value accordingly. The finish quality matters here too: an ADU that reads as custom and well-integrated will appraise differently than a basic conversion. What we can tell you honestly is that a well-designed, permitted ADU in a market like Brighton, with its large lots and multi-generational demand, is not just a cost, it’s a long-term asset. The exact value bump depends on your specific property, and we’ll never promise a number we can’t stand behind.

Start The Conversation

Room for Everyone
Who Matters Most to You

When your Brighton home still feels right but your floor plan has run out of answers, an addition or ADU can change everything. A parent who needs to be close. An adult child who’s back. A family that’s simply outgrown three bedrooms on a flat lot with plenty of room to grow. Christie’s Design/Build Remodeling helps you build something that feels custom, connected, and genuinely yours, not another production build on your block.
Start Planning Your Project
(303) 833-4715

Our Other Remodeling Services

Kitchen
Remodeling

Learn More

Basement
Finishing

Learn More

Whole-Home
Remodeling

Learn More

Bathroom
Renovation

Learn More

Deck
Construction

Learn More

Outdoor
Living Spaces

Learn More

From The Blog

When Family Grows,
Your Brighton Home Can Too

When you’re figuring out how to bring a parent home or carve out real space for your family in Brighton, the decisions add up fast. Our blog walks through planning, design, permits, garage conversions, and the choices that help your addition feel like it was always there.