#1 ADU Contractor in Beaumont
Custom Builds by Horizon Remodeling
Horizon Construction & Remodeling Inc. builds accessory dwelling units in Beaumont, handling design coordination, permitting through the City of Beaumont Building and Safety Department, and construction across the full project. Because most homes here sit inside master planned communities such as Oak Valley Greens, Tournament Hills, and Solera, exterior additions typically require HOA architectural approval alongside the city permit, and we account for both from the start. Specialty trade portions are performed by appropriately licensed subcontractors we coordinate. Call us to request a free estimate.
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How Our ADU Process Works
When it comes to enhancing your living space, room additions combined with Accessory Dwelling Unit (ADU) construction offer unparalleled versatility and value. These projects not only increase square footage but also provide additional living accommodations, whether for extended family, rental income, or work-from-home setups, making them a popular choice for homeowners seeking to maximize their property’s potential. According to California’s Department of Housing and Community Development, ADUs are a key solution to expanding housing options in urban and suburban neighborhoods.
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If you are planning to add a secondary unit to your property, working with an experienced adu contractor in Beaumont means understanding a regulatory picture that has more moving parts than most homeowners expect. California consolidated its ADU rules into Government Code sections 66310 through 66342 in 2024, and those rules were updated again on January 1, 2026. Under the current framework, square footage is calculated as interior livable space rather than overall footprint. Once you submit an application, the reviewing agency has 15 business days to determine whether it is complete and 60 days to approve or deny it. Approval is ministerial, meaning no public hearing and no discretionary design review stands between you and a decision.
In Beaumont, that application goes to the City of Beaumont Building and Safety Department. Because most of the newer tracts here sit inside master planned communities governed by homeowners associations, exterior changes typically require HOA architectural approval in addition to the city building permit. Those are two separate processes running on different timelines, and missing either one can stall a project. We walk clients through both from the start so nothing gets filed out of order.
Riverside County maintains a Permit Ready ADU program offering four pre-approved plans at no cost, ranging from a 499 square foot studio to a 909 square foot two-bedroom unit. Three of those plans fall under 750 square feet, which places them below the state impact fee threshold and can meaningfully reduce upfront costs. The program does exclude parcels in flood hazard or environmental constraint areas, so site mapping is one of the first things we check before any planning conversation goes further.
Beaumont grew rapidly during and after the early 2000s housing boom, adding tens of thousands of residents between 2010 and 2020. The large majority of homes here postdate 2000, and the typical floor plan is a two-story production home in a master planned tract, built with an open kitchen, a great room, a center island, and a walk-in pantry already part of the original design. That layout shapes where a detached unit can realistically sit on the lot and how far utility lines need to run to reach it, both of which affect project scope and cost.
Riverside County’s ADU ordinance, Ordinance 348, was adopted in 2023, and in May 2025 the California Department of Housing and Community Development issued formal findings identifying eighteen provisions that conflict with state law. Those include a one-story or 16-foot height cap, a junior ADU size limit set at 50 percent of the primary dwelling, and a parking requirement for interior ADUs. State law preempts all of them, so a homeowner reading only the county handout could easily conclude they are limited to less than current law actually allows. We keep current on these distinctions so your project is planned to what is actually permitted, not to an outdated local restriction.
Other Remodeling Services We Offer
A modern kitchen adds functionality, comfort, and lasting value to your home. At Horizon Construction & Remodeling, our kitchen remodeling experts bring fresh ideas and professional project management tailored to your unique needs. From layout design to material selection, we prioritize delivering a high-standard kitchen that’s both beautiful and energy-efficient — enhancing the way you cook, gather, and live every day.
Whether you envision a classic Southern California pool or a fully customized backyard oasis, Horizon Construction & Remodeling delivers the highest level of quality and service. Our comprehensive pool design and remodeling services cover everything from layout and decking to built-in BBQs and final touches like landscaping. Let Horizon be your trusted partner in transforming your backyard into the perfect outdoor retreat.
If you are planning a complete bathroom remodel or simply want to change your tub, shower, update your plumbing fixtures, or make the space more efficient, our team at Horizon will help you through the process with expert advice, professional craftsmanship, and affordable options with beautiful results. Learn more about our bathroom remodeling services.
Transform your space with our expert interior work services. We offer a comprehensive range of solutions — from space planning and custom design to the selection of high-quality finishes and materials. Our team of experienced professionals works closely with you to create a space that’s both functional and stylish, tailored to your unique needs, goals, and budget. Whether you’re updating a single room or overhauling your entire interior, we bring precision, creativity, and craftsmanship to every project.
At Horizon, we believe your home is more than just four walls — it’s where life happens. It’s the place you relax, gather with family and friends, and create lasting memories. That’s why we offer a full range of exterior work services designed to elevate your outdoor living space. From patios and hardscaping to custom decks and exterior renovations, we help turn your vision into a dream yard that complements your lifestyle and enhances curb appeal.
At Horizon Construction & Remodeling, our expert team includes a dedicated design and planning division that works hand-in-hand with licensed architects and structural engineers. We take care of everything — from detailed plans and blueprints to securing city permits — so you don’t have to deal with delays or red tape. Our goal is to streamline the process and provide a fully approved set of documents that aligns with both your vision and city regulations, saving you time and stress.
Why Choose Horizon Remodeling As Your ADU Contractor in Beaumont ?
Horizon Construction and Remodeling builds ADUs in Beaumont as a licensed Class B general building contractor, bonded, with more than 15 years of design-build work behind us. We handle the plan, the permit submissions to the City of Beaumont Building and Safety Department, and the construction itself, all under one contractor.
Because most homes here sit inside master planned communities, exterior work typically requires HOA architectural approval alongside the city building permit. We account for that layer from the start, so your project does not stall waiting on two separate approval tracks. Beaumont’s housing stock is also predominantly newer production homes built after 2000, which generally means cleaner site conditions and more predictable structural starting points for an ADU addition.
A few protections apply to ADUs under California state law regardless of local rules: no owner-occupancy requirement, no sprinkler retrofit triggered on the main house, and no impact fees on a unit with 750 square feet or less of interior livable space. We design to those statutes directly and plan around any site-specific constraints your parcel may carry. Neighborhoods we work in regularly include Oak Valley Greens, Solera, Tournament Hills, and Olivewood.
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ADU Contractor Services in Beaumont
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ADU Contractor in Beaumont FAQ
What is an ADU and why should I build one?
An accessory dwelling unit is a secondary home built on your existing property, taking the form of a backyard cottage, a garage conversion, or an in-law suite. Building one with Horizon Construction and Remodeling can add rental income, house extended family, or simply give you more usable space. In Beaumont, where most homes are newer production builds inside master planned communities like Oak Valley Greens or Tournament Hills, exterior additions typically require both a city building permit through the Building and Safety Department and HOA architectural approval before work begins.
How much does it cost to build an ADU in California?
What an ADU costs in Beaumont depends on details we cannot assess from a web page alone. The size of the unit, whether you are converting existing space or building a detached structure from the ground up, the utility connections your lot requires, and the finish level you select all push the number in different directions. What we can tell you is how the law structures those costs. Any ADU with 750 square feet or less of interior livable space is exempt from impact fees. School fees only apply once the unit exceeds 500 square feet. Connection fees for a garage conversion or a junior ADU are capped by state law, because those unit types are not treated as a new residential use. Adding an ADU also cannot force a fire sprinkler retrofit on your existing home.
One practical reality in Beaumont is that most of the newer tract communities in areas like Oak Valley Greens or Tournament Hills are governed by homeowners associations, which means exterior work typically requires HOA architectural approval alongside the city building permit from the City of Beaumont Building and Safety Department. No contractor should quote you a firm price before walking the property, confirming setbacks, and reviewing utility access. We do exactly that before giving you a fixed scope and price. One warning worth passing along: the CalHFA ADU grant program is closed, its funding fully allocated, and the agency itself states that anyone promising to help you obtain that grant is running a scam.
Do I need permits for an ADU in Beaumont?
Yes, an ADU always requires a building permit, though the approval process is ministerial rather than discretionary, meaning there is no public hearing or design review board to clear. In Beaumont, applications go through the City of Beaumont Building and Safety Department, which under state law has 15 business days to confirm completeness and 60 days to issue a decision, a window that can shrink to 30 days when a pre-approved plan is submitted. Because most tracts here sit inside master planned communities, homeowners should also expect an HOA architectural review on top of the city permit. Horizon prepares the full application package, submits it, and follows it through every inspection rather than returning that responsibility to the homeowner.
How long does ADU construction take with Horizon Remodeling?
Most ADU construction projects take between 4 to 8 months from design to completion, depending on scope and permit approvals. Horizon Remodeling prioritizes efficient timelines while maintaining quality workmanship.
What types of ADUs can Horizon Remodeling build?
We specialize in building detached ADUs, attached ADUs, garage conversions, backyard cottages, and junior ADUs (JADUs). Our team can help you choose the right ADU style for your property and goals.
Can I build a detached ADU on my property in Beaumont?
Yes, if your property meets California zoning and space requirements. Horizon Remodeling will assess your site, secure the necessary permits, and build a fully detached ADU tailored to your preferences.
Is Horizon Remodeling licensed to build ADUs in my area?
Yes, Horizon Remodeling is fully licensed, bonded, and insured to build ADUs throughout Orange County and surrounding areas. We have over 18 years of experience delivering high-quality ADU projects.
What are the benefits of hiring Horizon Remodeling for my ADU project?
Horizon Construction & Remodeling Inc. handles ADU design, permitting through the City of Beaumont Building and Safety Department, and construction as a single coordinated effort, keeping the project on budget and code-compliant. Because most tracts here sit inside HOA-governed communities, we factor in architectural approval requirements alongside the city permit process.
Does Horizon Remodeling handle ADU design and permitting?
Absolutely! Horizon Remodeling provides complete ADU design services, including architectural plans and 3D renderings. We also handle city permits and inspections, streamlining your project and reducing stress.
How do I get started on an ADU with Horizon Remodeling?
Reach out to us to schedule a free consultation, where we assess your property, talk through your goals, and deliver a detailed estimate covering every phase of your ADU project. In Beaumont’s HOA-governed tracts, that early conversation helps us flag both city permit and architectural approval requirements before work begins.
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Horizon is a licensed Class B general building contractor serving Beaumont and the surrounding Orange County communities.
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