ADU builders in Northridge

Northridge mixes big 1960s–70s ranches with rental demand from CSUN a few blocks away. It's also ground zero of the 1994 earthquake — thirty years later we still open walls and driveways here that carry its cracks. Quake-legacy repair, open-plan remodels, and student-rental ADUs are Northridge's bread and butter.

ADUs & Garage Conversions · Northridge

Why Northridge homes bring this work to us

With CSUN a few blocks away, a Northridge ADU rents the day it's finished — student and faculty demand doesn't take semesters off. Bigger Northridge lots also take detached units comfortably, and we design them so they work for family later, not just tenants now.

We're based in Mission Hills, so Northridge is home turf — walkthroughs usually happen within a couple of days.

Neighborhoods we work in

CSUN areaSherwood ForestDevonshire corridorNordhoff corridor

ZIP codes: 91324, 91325 · Serving all of Northridge and the surrounding San Fernando Valley.

What's included

ADUs we build in Northridge

Detached new-build ADUs

A complete small home in your backyard — foundation, framing, systems, and finishes, up to 1,200 sq ft under state law.

Garage conversions

The fastest, most affordable path to a rentable unit: foundation checks, insulation, systems, and a finish that doesn't feel like a garage.

Attached ADUs & JADUs

Additions and junior units carved from existing space, with the required separate entrance and kitchen done to code.

Guest houses & casitas

Not every backyard building needs a full kitchen — we build casitas, studios, and offices to the same standard.

Site work & utilities

Trenching, sewer connections, panel upgrades, and meters — the part of ADU budgets everyone forgets. We price it up front.

Plans, engineering & permits

Architectural plans, structural engineering, Title 24, and city plan check — or we build from the plans you already have.

$100k–$180k
Typical garage conversion, turnkey
$250k–$400k+
Typical detached ADU, turnkey
$1,800–$2,800/mo
Typical SFV ADU rent today

Typical 2026 Los Angeles-area ranges including construction; plans, permits, and utility fees vary by city and site. Many owners see the unit pay for itself in 7–12 years of rent.

FAQ

Questions we hear a lot

Who handles building permits in Northridge?

Permits here go through LADBS — Northridge is City of Los Angeles (Van Nuys office). We prepare the plans, pull the permits, and meet the inspectors — you never stand in a city line.

What does an ADU cost in Northridge?

Turnkey garage conversions typically run $100k–$180k and detached new-build ADUs $250k–$400k+ — Northridge sits squarely in those ranges. Utilities and site conditions move the number, which is why we start with a free site check and give you a written, line-item price.

How fast can you get to Northridge?

We're based in Mission Hills, so Northridge is home turf — walkthroughs usually happen within a couple of days. Estimates are free and come back as a written, line-item scope — not a guess over the phone.

Also in Northridge

Nearby city guides

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