Home Addition Contractor in Las Vegas, NV
Add the space your family actually needs room additions, ADUs, second stories, and casitas built by a licensed Las Vegas contractor with a fixed price and proper Clark County permits.
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HOME ADDITION SERVICES
Complete Home Addition Services in Las Vegas and Henderson, NV
Your home is not big enough anymore. Maybe you have a growing family and need a bedroom. Maybe you want an in-law suite for a parent moving in. Maybe you want to build a casita on your lot and generate rental income. Whatever the reason, Seven Wells Construction designs and builds home additions across Las Vegas, Henderson, Summerlin, and all of Clark County.
We manage every part of the project from your first consultation through Clark County permit submission, structural engineer coordination, foundation work, framing, roofing, interior finishes, and final inspection. You deal with one licensed team, one fixed price, and one project manager who keeps you updated every step of the way.
What is included in every home addition we build:
- Free in-home consultation, site assessment, and preliminary budget discussion
- Design drawings and structural plans coordinated with a licensed Nevada engineer
- Clark County permit submission, inspections, and code compliance
- Foundation work, concrete pour, and site preparation
- Wood framing, roofing, and exterior finish to match existing structure
- Window and door installation with energy-efficient glazing
- Rough-in plumbing and electrical for all new rooms
- Insulation, drywall, painting, and all interior finishes
- Flooring installation and transitions to existing rooms
- Final Clark County inspection sign-off and workmanship warranty
- Licensed Nevada Contractor
- Bonded and Insured
- Free Estimates on All Projects
- Workmanship Warranty Included
10+
Years Of Experience
HOME ADDITION SERVICES WE BUILD IN LAS VEGAS
Home Addition Services in Las Vegas, NV
From a single bedroom addition to a full second-story build, Seven Wells Construction handles every type of home addition across Las Vegas and Clark County. Here is what we build.
Room Addition Las Vegas NV
Add a bedroom, office, playroom, or flex space with a full foundation and matched exterior.
Second Story Addition Las Vegas
Add a complete second floor with structural reinforcement, new roofline, and interior staircase.
Master Suite Addition Las Vegas NV
Build a primary bedroom with walk-in closet and en-suite bathroom as a ground-floor addition.
ADU Construction Las Vegas NV
Build a detached accessory dwelling unit up to 1,200 sq ft with kitchen, bath, and private entrance.
Casita Construction Las Vegas NV
Detached guest house or rental unit fully permitted under Clark County ADU rules.
Garage Conversion Las Vegas NV
Convert an attached or detached garage into a bedroom, office, gym, or living space.
In-Law Suite Addition Las Vegas
Attached living space with private entrance, kitchenette, and bathroom for family members.
Sunroom Addition Las Vegas NV
Climate-controlled sunroom with UV-resistant glazing designed for Las Vegas heat.
Bump-Out Addition Las Vegas
Small structural expansion under 200 sq ft to enlarge a kitchen, bathroom, or bedroom.
Bathroom Addition Las Vegas NV
Add a new bathroom to your home with full plumbing rough-in and Clark County permits.
Homeowners building additions often plan kitchen updates at the same time. Seven Wells manages kitchen remodeling in Las Vegas under the same contract so your remodel and addition run on one timeline.
Real Home Addition Results for Las Vegas Homeowners
We have built garage conversions in Spring Valley that added a rentable studio apartment for under $40,000. We have completed master suite additions in Henderson and Green Valley that added over 400 square feet and a spa-quality primary bath. We have built detached casitas on Summerlin lots that meet current Clark County ADU rules and generate $1,500 to $2,200 per month in rental income for homeowners.
Every addition we build is engineered for Las Vegas conditions. Desert heat cycles, extreme UV exposure, and the concrete curing challenges of 115-degree summers require specific construction methods. Our framing crews, foundation teams, and finishing contractors work in Las Vegas year-round. They know what works here and what fails within 3 years on projects built by contractors without local experience.
WHY CHOOSE SEVEN WELLS CONSTRUCTION
Why Las Vegas Homeowners Choose Seven Wells for Home Additions
Home additions in Las Vegas involve challenges that only show up in desert climates. Concrete poured in temperatures above 100 degrees requires accelerated curing agents and temperature management that most out-of-state contractors are not trained for. Exterior stucco and paint on additions must be UV-rated to survive Las Vegas sun exposure without cracking or fading within 3 to 5 years. We specify and install materials that account for all of it.
Clark County also updated its ADU rules in 2024 in ways that significantly changed what you can build and how large it can be. The minimum lot size requirement was eliminated and the previous one-bedroom cap was removed. Attached ADUs can now cover up to 50 percent of the primary dwelling’s floor area, and detached ADUs are capped at 1,200 square feet. We work under the current code. Contractors who have not updated their knowledge of Clark County ADU regulations will cost you time and money in permit rejections.
What Seven Wells Does
- Pull all Clark County permits and handle all structural engineer coordination
- Provide a fixed written quote before any foundation work begins
- Assess every wall for load-bearing status before design is finalized
- Build additions that match the existing roofline, exterior finish, and HOA requirements
- Specify UV-resistant materials and concrete curing methods for Las Vegas heat
- Complete bedroom additions in 6 to 10 weeks, second-story builds in 16 to 24 weeks
- Navigate Clark County ADU regulations updated in 2024 including new size and design rules
- Provide a workmanship warranty on all structural and finish work
What Others Often Don't
- Leave permit and engineer coordination to the homeowner
- Provide verbal estimates that increase after framing starts
- Begin design without confirming structural requirements
- Build additions that look visually disconnected from the original structure
- Use standard construction materials that degrade faster in desert conditions
- Give open-ended timelines with no milestone accountability
- Work from outdated ADU code knowledge that causes permit rejections
- Walk away after final payment with no guarantee on structural work
How Much Does a Home Addition Cost in Las Vegas, NV?
Home addition costs in Las Vegas range from $135 to $500 per square foot depending on the complexity of the project and the finish level. A simple bump-out or garage conversion sits at the lower end. A full second-story addition or detached ADU with a kitchen and bathroom sits at the upper end. The table below gives realistic ranges for every common addition type in 2025 and 2026.
Home addition cost breakdown for Las Vegas, NV by Seven Wells Construction
What Affects Your Home Addition Cost in Las Vegas
Size is the primary driver. Every additional square foot adds foundation, framing, roofing, exterior finish, insulation, drywall, and mechanical rough-in costs. In Las Vegas, that runs $135 to $269 per square foot for standard-grade construction and $270 to $500 per square foot for premium finishes.
Structural Complexity and Second-Story Work
Second-story additions require a structural engineer to assess whether your existing foundation and wall framing can carry the additional load. In most Las Vegas homes built before 2005, foundation reinforcement is required. Engineer fees run $2,500 to $6,000. If structural upgrades are needed, add $8,000 to $30,000 depending on the scope. This is non-negotiable and cannot be cut from the budget.
ADU and Casita Permitting Costs
Clark County ADU permit fees typically run $3,500 to $9,000 depending on the size and complexity of the unit. School impact fees apply to new dwelling units in Clark County and add $2,000 to $5,000 to most ADU projects. Seven Wells includes permit coordination in our project management and walks you through every fee before you sign.
HOA Setback and Design Requirements
Master-planned communities in Summerlin, Green Valley, and Anthem have setback requirements, height restrictions, and exterior material standards that govern what you can build and where on your lot. Some HOAs require architectural review committee approval before permits are submitted. We review your HOA CC&Rs before design begins so no work gets started that cannot be approved.
Las Vegas Desert Construction Conditions
Concrete poured in Las Vegas summer heat requires additives and curing blankets to prevent rapid moisture loss that weakens the slab. This adds $800 to $2,500 to foundation costs depending on the time of year. Exterior stucco and paint must be specified with UV inhibitors and elastomeric coatings designed for desert climates. We include these specifications in every addition quote at no extra markup.
How It Works
Getting your home or business remodeled with Seven Wells Construction is simple, clear, and stress free.
Free Consultation
Tell us about your project and we will come to you. We listen to your goals, walk through your space, and give you honest advice with no pressure and no obligation.
Design & Planning
We build a clear project plan with a detailed scope of work, material selections, and a realistic timeline. You know exactly what is happening before we ever break ground.
Construction & Build
Our licensed team gets to work. We show up on time, keep your space as clean as possible, and update you every step of the way until the project is complete.
Final Walkthrough
Before we call it done, we walk through every detail with you. We do not leave until you are fully satisfied with the finished result and every item is checked off.
Materials and Brands We Use for Las Vegas Home Additions
Every material we specify is chosen to perform in Las Vegas desert conditions. UV resistance, heat tolerance, and moisture management in low-humidity environments are non-negotiable standards for any addition we build.
Our Numbers
The Results Speak for Themselves
Completed Projects
Happy Customers
Years in Business
Google Rated
Other Services
Other Home Remodeling Services in Las Vegas, NV
Seven Wells Construction handles complete residential projects across Las Vegas and Clark County. If your addition is part of a larger remodel, we manage all of it under one contract.
Kitchen Remodeling Las Vegas NV
Custom cabinets, quartz countertops, open-concept conversions, and full kitchen renovations.
Bathroom Renovation Las Vegas NV
Walk-in showers, custom tile, vanity upgrades, and full master bath remodels.
Home Remodeling Las Vegas NV
Multi-room renovations including flooring, paint, structural updates, and full home rebuilds.
OUR SERVICE AREAS
Home Addition Areas We Serve Near Las Vegas, NV
Seven Wells Construction builds home additions and ADUs across the entire Las Vegas Valley and Clark County. We have active projects in Henderson, Summerlin, North Las Vegas, Spring Valley, Enterprise, Paradise, Sunrise Manor, Green Valley, Anthem, Centennial Hills, Mountains Edge, Sun City, Aliante, Silverado Ranch, Whitney, and Boulder City.
- Las Vegas, NV (89101 to 89149)
- Henderson, NV (89002 to 89077)
- Summerlin, NV (89117 to 89145)
- North Las Vegas, NV (89030 to 89087)
- Paradise, NV (89109 to 89169)
- Spring Valley, NV (89103 to 89148)
- Enterprise, NV (89139 to 89179)
- Sunrise Manor, NV (89110 to 89156)
- Green Valley, NV (89014 to 89074)
- Anthem, NV (89044 to 89052)
- Centennial Hills, NV (89130 to 89166)
- Mountains Edge, NV (89148 to 89178)
- Silverado Ranch, NV (89139 to 89183)
- Sun City Summerlin, NV (89134 to 89144)
- Aliante, NV (89084 to 89086)
- Boulder City, NV (89005)
- Whitney, NV (89120 to 89122)
FAQS
Common Questions About Home Additions in Las Vegas
Yes. All home additions in Clark County require building permits before any work begins. This includes room additions, ADUs, garage conversions, second-story builds, and sunrooms. Permits cover structural, electrical, plumbing, and mechanical work depending on the scope. Las Vegas adopted the 2021 International Building Code in September 2022, and all addition construction must meet those standards. Seven Wells Construction submits all permits and coordinates all required inspections so you are never exposed to unpermitted work.
Home addition costs in Las Vegas run $135 to $500 per square foot depending on the project type and finish level. A garage conversion starts around $20,000 to $45,000. A bedroom addition runs $35,000 to $65,000. A detached ADU or casita costs $90,000 to $200,000. A second-story addition ranges from $100,000 to $250,000 and above. We provide a fixed written quote before any work starts so you have a firm number before signing.
Clark County updated its ADU regulations in 2024 with significant changes. The minimum lot size requirement was eliminated, so lot size alone no longer disqualifies a property. The previous one-bedroom cap was removed. Attached ADUs can cover up to 50 percent of the primary dwelling's floor area. Detached ADUs are capped at 1,200 square feet. All ADU construction must meet the 2021 International Building Code. If you looked into ADUs a few years ago and concluded your property did not qualify, the updated rules may change that.
A garage conversion or small bump-out addition takes 4 to 8 weeks. A bedroom or bathroom addition runs 6 to 12 weeks. A master suite or in-law suite addition takes 10 to 16 weeks. A detached ADU or casita runs 16 to 24 weeks. A second-story addition takes 20 to 30 weeks depending on structural complexity. We give you a specific timeline in writing before work begins and maintain milestone updates throughout the project.
Yes. All three of those communities have architectural review committees that must approve home addition plans before Clark County permits can be submitted. HOA requirements typically cover setbacks from property lines, maximum addition height, exterior material and color matching, and roofline continuity. Approval timelines run 2 to 6 weeks depending on the HOA. Seven Wells prepares and submits all required HOA documentation on your behalf and includes this in our project timeline from the start.
Yes. Detached ADUs and casitas on residential lots in Las Vegas and unincorporated Clark County are permitted for use as rental units. Under the updated 2024 rules, ADUs can be up to 1,200 square feet and can have multiple bedrooms. A well-built detached ADU in Henderson or Spring Valley typically generates $1,200 to $2,500 per month in rental income depending on size and finish level. Seven Wells builds ADUs to full Clark County code with all permits included.
The terms are used interchangeably in Las Vegas. Both refer to a self-contained secondary dwelling unit on the same lot as the primary residence. The legal classification under Clark County zoning is an Accessory Dwelling Unit. A casita is simply the local term most Las Vegas homeowners use, particularly in the Southwest architectural tradition. Both require the same permits and must meet the same Clark County building code requirements.
A licensed structural engineer assesses your existing foundation, wall framing, and bearing capacity to determine if your home can carry a second story. Most Las Vegas homes built before 2000 require foundation reinforcement to support a second floor. The engineering assessment costs $2,500 to $6,000. If reinforcement is needed, that adds $8,000 to $30,000 to the project. Seven Wells coordinates the structural engineer as part of our design process so you have complete cost clarity before committing to the project.
Ready to Add the Space Your Family Needs?
We have built home additions across Henderson, Summerlin, Spring Valley, Green Valley, Centennial Hills, Enterprise, and the rest of Clark County. Every project comes with a fixed written quote, a clear timeline, proper Clark County permits, structural engineer coordination, and a workmanship warranty that covers both structural and finish work.
Whether you need a bedroom for a growing family, a casita for rental income, or a second story to double your living space, our team has the licensing, the local knowledge, and the Clark County permit experience to build it right. Call us today and we will schedule your free in-home consultation within 24 hours.