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Nucave Construction
Completed Nucave ADU with modern exterior in San Diego County

Design · Permit · Build

San Diego ADU & Custom Home Builder

Build more home on the lot you already own. Nucave designs, permits, and builds ADUs and custom homes across San Diego County, with one accountable team from your first site visit to keys in hand.

100+

Projects completed

10+

Years building

20

Cities served

2016

Founded in Vista

What we build

ADU specialists. Custom home craftsmen.

Most of what we build is ADUs: design, permitting, and construction under one roof. But at heart we are residential value creation specialists: we listen to what you need, then build the version of the project that makes your property worth more.

ADU Design & BuildCustom HomesKitchen RemodelingGarage ConversionsBackyard LivingPermitting HandledTenant Improvement

The Nucave ADU Project Planner

What does an ADU cost in San Diego?

More than a calculator. Get an instant estimate range, check your property's feasibility, and see your ADU readiness score, all before your first call.

The complete homeowner journey:

  • ✓ Tell us what you want to build
  • ✓ Get an instant estimate range with a breakdown
  • ✓ Answer quick questions about your property
  • ✓ Get your readiness score and a free builder review
Start the ADU Project Planner

How it works

One team, four steps, zero hand-offs

  1. 01

    Feasibility

    We check your lot, zoning, and utilities before you spend a dollar on design.

  2. 02

    Design

    Plans shaped around your property and how you'll actually use the space.

  3. 03

    Permits

    We handle city submittals, corrections, and approvals end to end.

  4. 04

    Build

    One accountable design-build team. Hands-free until the keys are in your hand.

Where we build

An ADU builder serving Greater San Diego

Nucave builds ADUs and custom homes across North County and Greater San Diego, with projects in San Diego, Encinitas, Carlsbad, Oceanside, Vista, San Marcos, and Escondido, plus surrounding communities. The rules change at every city line; our regulation guides give you the answers before your first call.

Client stories

Homeowners who'd hire us again

Nucave was a lifesaver after another contractor was fired. The workmanship was exceptional, the price was competitive, and the materials were top of the line. They had my back in every way.
Monica M.Custom ADU
Major props to the guys at Nucave for transforming our unfinished garage into a complete masterpiece of an ADU that our mom can now live in. They kept us in the loop about every update and had the place move-in ready the same week she made her drive.
Bailey S.Garage ADU for family
Nucave brought my ADU vision to life. I had a dilapidated detached garage with many issues, and they guided me in the right direction and helped me overcome obstacle after obstacle with the city of San Diego. They did everything they said they would do and more.
Dustin V.Garage conversion ADU, San Diego
Love my new ADU, every detail's exquisite, and I was shocked at how quickly it was done. Vaulted ceilings with skylights make mornings magical. Ryan and his team are absolutely amazing: efficient, attentive, meticulous. If you want a luxury ADU, not a prefab paper-thin build, it's quality.
Shannon C.Luxury ADU build
Nucave construction did a great job remodeling and completing a relatively complicated medical facility for me.
Javad T.
Project was promptly scheduled. Work began and the project was appropriately staffed. Workers were professional and competent.
Neal H.
Ryan is really good to work with, great communication and punctual, I had no complaints.
Ryan C.
The Nucave crew and even the subcontractors were similarly friendly; they showed up on time every day, worked hard, and cleaned up when they left.
Tristan B.
Ryan managed our project perfectly and the results are stunning! He works with true professionals, is resourceful, knowledgeable, and diligent, and has an excellent taste.
Lena N.
After meeting with several contractors, I met Ryan and instinctively knew he was the right choice. In fact it was the best decision.
Heather D.
Ryan, the owner is very knowledgeable and has quite the eye for design.
Shawn F.
Not only were the renovations fantastic, the company’s presence was professional and positive throughout.
Ashty A.
I have had him on multiple projects and everything always goes smoothly and he catered to all my needs.
Ryan W.
Ryan and his team did a very clean job and were responsible and communicated with me the whole way through the project.
Chelsea B.
The entire team could not have been more thorough, professional, and competent in how they approached our re-model and several projects at our new home.
Dylan W.

Follow the builds

Every project, documented

Job-site walkthroughs, befores and afters, and finished reveals, straight from our Instagram. Two dozen videos and counting, from breaking ground to handing over keys.

Inside a finished Nucave remodel at 939 Coast, ocean views included

Free consultation

Let's talk about your property

Tell us what you're imagining. We'll tell you what your lot allows, what it costs, and how long it takes.

Call NowFree Consultation