A new rear addition with a vaulted beamed ceiling and tall windows
Home Addition Contractor · Artesia, CA

Home Addition Contractor in Artesia - One Fixed Price, Permits Handled

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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A second-story addition that matches the existing roofline
A second-story addition with a balcony, matched to the original house
The bathroom inside a new ADU
A small deck outside a new ADU
The living room inside a new ADU
A new two-story ADU over a garage
A compact kitchen inside a new ADU
A new modern ADU with wood cladding
Every project starts with

A free site visit, a check of what your lot allows and a written, line-item price.

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Fast, Reliable Home Addition Contractor Across Artesia

Adding square footage to an Artesia home is a different project than the same job in Cerritos or La Palma, mostly because of how these lots were platted back in the 1950s and 60s. Tight side setbacks push most additions to the rear or upward, and that shapes everything from foundation work to plan check. We know Artesia’s building department, its inspection rhythm, and the ranch homes that dominate the residential streets. If you’re weighing a second story, a garage addition, or a detached ADU, call (472) 248-8213 for a free estimate and a written price before anything starts.

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Why Sutton ADU Builders Is Artesia’s Preferred Home Addition Contractor Company

A new sunroom addition with three walls of windows

Sutton ADU Builders has been building additions and ADUs since 2006, and the Artesia projects we take on follow one consistent rule: a written price before a single tool is lifted. That matters on a 1950s ranch where the ceiling joists may or may not carry a second floor. We send you the name and photo of every technician before they arrive, and each one is background-checked, identity-verified, and photo-badged under the Threshold Verified standard. When our crew shows up at an Artesia address, you already know who is walking through the door.

Our local work in Artesia includes rear additions off 183rd Street, second-story projects near Artesia Park, and garage conversions throughout 90701. The plan check and inspection process here has its own rhythm, and we schedule around it rather than pretending it doesn’t exist. Miles Hartwell oversees the Artesia projects, and every job carries our 365-Day Done Right Promise: if workmanship fails within a full calendar year of completion, we make it right at no cost to you.

We’re part of the Threshold Group family, and the standard that governs every Artesia build includes a free second visit if any element of the work fails. No haggling. No fee. The pricing is written, the crew is vetted, and the guarantee is on paper. That’s what a Home Addition Contractor should hand you before the first day of framing.

Second Story Addition Contractor in Artesia

A Second Story Addition Contractor in Artesia does something that is genuinely difficult on these 1950s ranch lots: they lift a home upward when the side yards are too narrow to build out. Most Artesia homes from that era were framed with 2×6 ceiling joists, and those joists cannot carry a second floor without structural reinforcement. That’s not a budget line item you want to discover after the walls are open. A second-story addition in Artesia typically runs $180,000 – $320,000 depending on square footage, roofline changes, and whether the existing foundation needs new footings.

Structural Reality on Artesia Ranches

The existing foundation and ceiling framing must be evaluated before we price a second story. In Artesia, many of these homes sit on continuous poured footings that were never designed for two floors. We may need to sister in LVL beams, pour new footings, and rework the stair location before framing starts. Skipping that evaluation is how change orders happen.

Plan Check and Setbacks

Artesia’s side setback requirements often kill a second-story plan if the upper floor extends closer to the property line than the zoning code allows. We check the municipal code during the estimate phase, not after you’ve paid for drawings. Most Artesia second-story projects clear plan check in about six weeks when the structural calcs and Title 24 documents are submitted correctly the first time.

Garage Addition Contractors in Artesia

A single-story rear room addition with tall windows and a new patio

Garage Addition Contractors in Artesia work on two very different projects: converting an existing detached garage into living space, or adding a new garage structure with a room above. Both are common in Artesia because the original 1950s lots were built with detached garages at the rear. A garage conversion to an ADU or a garage addition in Artesia typically runs $85,000 – $180,000, with the spread driven by whether the existing slab, walls, and roof can be reused.

Converting a 1950s Detached Garage

Many Artesia garages built in the 1950s sit on slabs without a moisture barrier, and the wall framing may be undersized for a conditioned living space. We check the slab elevation, the roof structure, and the electrical service before we put a written price in front of you. If the slab has settled, the conversion cost shifts upward accordingly.

New Garage Additions and Second-Floor Rooms

When the garage is too far gone to convert, a new build often makes more sense. A new detached garage with a livable room above gives you square footage without touching the main house, and it avoids the side-setback problem entirely if the garage sits at the rear of the lot. Artesia’s zoning allows this configuration on most residential parcels, but the setback from the rear property line still applies.

Trusted Brands We Service in Artesia

Sutton ADU Builders works directly with the prefab and modular systems that fit Artesia’s narrow lots and 1950s-era parcels. We’re experienced with Cover and Dvele for detached ADUs that arrive as panelized systems and go up faster than stick-built, and Boxabl for compact units that fit tight rear yards. We stock the common connection details, flashing, and trim components for these brands locally, so an Artesia homeowner isn’t waiting on parts shipped from out of state. James Hardie siding and trim is our standard exterior treatment on additions and second stories, because it holds up through the hot, dry inland summers we get here without the stucco mismatch you’d otherwise see on an upper floor.

Common Home Addition Contractor Problems We See in Artesia Homes

  • Side-yard additions that die at plan check. Artesia’s 1950s and 60s lots often have side setbacks of five feet or less, and a bump-out that looks feasible in a sketch fails the setback requirement in the municipal code. We verify the actual setback before pricing the job.
  • Second-story plans priced without a structural review. A ranch home off 183rd Street may have 2×6 ceiling joists that cannot carry a floor above. If the contractor prices the job before opening the walls, you get a change order. We open a representative section during estimating when the homeowner permits it.
  • Plan-check delays from incomplete Title 24 documents. Artesia’s plan check will bounce a project back for energy-code documentation that isn’t filled out properly. Corrections add weeks. We submit the structural calcs and Title 24 paperwork with the initial filing.
  • Foundation settlement on rear additions. The heavy clay soil in this part of Los Angeles County moves with the wet and dry seasons, and older Artesia slabs sometimes show settlement cracks. A rear room addition may need new footings and a tied slab edge rather than a simple slab extension.

Pricing for Home Addition Contractor in Artesia, CA

A room addition in Artesia generally starts around $65,000 for a modest single-room bump-out (where a bump-out is even permitted on the lot) and runs to $320,000+ for a full second-story addition with structural reinforcement, roofline changes, and new stairs. Garage conversions land between $85,000 – $180,000. What moves the number: the condition of the existing foundation, the side and rear setbacks, whether the ceiling framing needs reinforcing, and the finish level inside. Every estimate we give in Artesia is a written, line-item price, fixed before work begins. Call (472) 248-8213 for a free estimate. We’ll walk the lot, check the setbacks against the municipal code, and give you a real number on paper.

We Also Serve Cities Near Artesia

Our crews cover the neighboring communities of Cerritos, La Palma, Hawaiian Gardens, and Norwalk. If you’re in one of those cities and researching a home addition, the same written pricing and Threshold Verified crew standards apply. You can also read more about what we do across the region on our Home Addition Contractor in Artesia page, which covers the lot-specific constraints on this side of the county line.

Serving Artesia, CA - Our Local Coverage Area

We’re based in the Artesia area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About Home Addition Contractor in Artesia

Why Artesia Chooses Sutton ADU Builders

We set the standard for home addition contractor in Artesia.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Artesia

Getting your home addition contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your home addition contractor needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Artesia - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local home addition contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Artesia Customers Say

Trusted by homeowners across Artesia and surrounding areas.

★★★★★

"Insulated the walls and ceiling properly. It stays comfortable even in July."

Tamika W. · Verified customer
★★★★★

"They handled the drawings and the permit paperwork for us. All I had to do was pick the finishes."

Rosa M. · Verified customer
★★★★★

"Every crew member was vetted and carried a badge, which matters when they are around your family for months. Tidy site every day."

Daniel F. · Verified customer

More ADU services in Artesia

Every build below starts the same way: a free site visit and a written price.

Getting started with Sutton

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a backyard ADU site with the homeowner

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