Custom Home Building - JJ Builders

Custom Home Builders in Riverside, CA

Designed around your life. Built on time. Priced before we break ground.

What is a Custom Home?
A custom home is the largest project most families will ever build. It deserves a contractor who treats your money like their own and your home like the place your grandkids will visit. JJ Builders has been designing and building custom homes across Riverside and the Inland Empire for 18 years. Every project is led personally by Joshua Phillips, the owner — so the person walking you through your plans on day one is the same person walking you through your finished home on closing day.
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Why families building in Riverside hire JJ Builders
Building a custom home is the slowest, most expensive, most emotionally exhausting project most families will ever take on. The hardest part isn't construction — it's living with uncertainty for a year. We're built around removing that uncertainty.
How we build your custom home
01
Discovery (15 minutes, free)

A quick phone call to align on what you're building, what you're working with (lot, budget, timeline), and whether we're the right fit. No pressure.

02
Lot Evaluation & Feasibility

We visit your property. Setbacks, slope, soils, access, utilities, view considerations, neighborhood character — all reviewed before design begins. If your lot has constraints that affect cost, we tell you up front.

03
Design & Pre-Construction

We lead a design team (architect, structural engineer, energy compliance) and lock down floor plans, elevations, finishes, and specifications. By the end of this phase, you have permit-ready plans, a fixed-scope contract, and a realistic build schedule. Design and pre-construction fees typically run $3,000–$10,000.

04
Permits & Approvals

We submit to the City of Riverside (or Rancho Cucamonga, Temecula, etc.) and manage all comments, revisions, and inspections through final approval. You don't sit on hold with planning departments.

05
Build & Handover

Most custom homes take 10–14 months from groundbreak. You get weekly on-site walkthroughs, daily updates through Houzz Pro, one point of contact, and a written 5-year workmanship warranty at handover. Most builds typically run $800–$1,250 per square foot, scoped to your finishes and complexity.

Local knowledge that shows up in your build

Riverside lots aren’t uniform. Canyon Crest hillsides need different foundations than Wood Streets infill. Mission Grove HOAs have different setback rules than Orangecrest. Rancho Cucamonga’s permitting workflow is different from Temecula’s. We’ve built across all of them, which means the surprises that delay other builders — soil reports that come back unexpected, hillside engineering, view-protection rules, school-zone setbacks — get handled before they become surprises.

After 18 years, we know which city planners reply to email and which need a phone call. We know which inspectors care about which details. That’s not glamorous, but it’s why your project finishes when we say it will.

Custom Homes, Built for Your Life
A custom home is more than a house; it's a reflection of your lifestyle, taste, and vision. As premier custom home builders Riverside CA families trust, our expert team ensures:

Designed Around How You Actually Live

Open-plan kitchens for hosts. Quiet wings for parents. Single-level for buyers planning to age in place. Multigenerational layouts with private entries. We design from how you'll use the house, not from a stock plan with your name on it.

Built to Last, Documented to Match

Premium materials, engineered framing, energy-efficient envelopes, solar-ready roofs. Every selection is documented in your specs so you know exactly what's behind your walls — and what to ask the next contractor about in 20 years.

Schedules That Hold

Schedules don't slip because of weather or material delays — they slip because of disorganization. We pre-order long-lead items, coordinate trades on a weekly look-ahead, and update the schedule when anything changes. Most builds finish within a week of the original target date.

Diego Cruz-Baker
Diego Cruz-Baker3 months ago
★★★★★
5 stars without hesitation. We've had the pleasure of seeing JJ Builders' work firsthand on an ADU project, and it was truly impressive, top-notch craftsmanship…
Ryan Dodson
Ryan Dodson12 months ago
★★★★★
Top notch service and creativity. Josh Phillips has an unbelievable talent for building. Thank you very much for the creative ideas and help with our ADU build.…
Matthew Baltazar
Matthew Baltazar1 year ago
★★★★★
HUGE SHOUTOUT to Joshua at J.J Builders. They ensure your project is done quickly, professionally, and efficiently. Biggest thing I appreciate is the constant c…
Gabriela Devine
Gabriela Devine1 year ago
★★★★★
I proudly recommend Josh and JJ.Builders! We needed some work done on our personal property and not only did he make sure everything was handled great from star…
David Fontes
David Fontes1 year ago
★★★★★
JJ builders were great they helped us build an A.D.U. Joshua Phillips was very helpful and kept us informed the whole way. Our kitchen remodel was a huge succes…
Wendy Lominario
Wendy Lominario1 year ago
★★★★★
Had a new shower door installed. Joshua was wonderful. Answered all text messages right away. Gave me different options and explained everything in detail. He c…
Ruth Hamad
Ruth Hamad1 year ago
★★★★★
Love jj builder very efficient reasonable priced fast beautiful work. I used them twice, both times they did excellent job. Recommend them without any hesitatio…
David Bower
David Bower1 year ago
★★★★★
This is a first rate builder. You will never be surprised except for the high quality of his work.
Luis Rodriguez
Luis Rodriguez1 year ago
★★★★★
Excellent experience overall. I really appreciate the expertise and knowledge explained to me during the process. Communication was A+. Don't hesitate to use th…
Duke Vu
Duke Vu1 year ago
★★★★★
I had the pleasure of working with Josh for a home improvement project, and I cannot recommend him highly enough! From start to finish, Josh showcased his exten…
David Bower
David Bowera year ago
★★★★★
This is a first rate builder. You will never be surprised except for the high quality of his work.

The Results Speak
for Themselves

Every project is designed to last, crafted with precision, managed with discipline, and finished with care. From modernized spaces to full custom homes, we deliver work that looks as good as it feels to live in.

What homeowners love about our builds:

Most Common Questions

Frequently asked questions

We serve Riverside County and surrounding Inland Empire communities, including Riverside, Rancho Cucamonga, and nearby areas. Staying local helps us keep schedules tight and communication easy.

Yes, we design and build custom homes, accessory dwelling units (ADUs), and additions from the ground up. Expect clear pricing, detailed schedules, and craftsmanship that lasts.

Absolutely. We specialize in whole home remodels, kitchen and bath upgrades, and layout improvements that make your home feel new again, without the stress or mess.

We provide transparent estimates early, with written change orders and frequent check-ins so you always know where your project stands.

We’re a local, experienced general contractor focused on quality, cleanliness, and accountability, protecting your home, your budget, and your peace of mind from day one.

Planning your custom home? Let's talk.
Whether you have plans in hand or you're still trying to figure out whether your lot can support the home you want, the right next step is a 15-minute call. We'll talk through your project, share what a realistic timeline and budget look like, and tell you whether we're the right team for the build.