Solid ADU
Your junior ADU (JADU) in Brentwood
From first idea to final inspection: Solid ADU guides the entire junior ADU (JADU) process for homeowners in Brentwood and matches you with the right licensed contractor. Free advice, clear agreements.
- Uses space you already have, so it is typically the most budget-friendly ADU type
- One point of contact from feasibility and permits to final inspection
- Vetted, CSLB-licensed contractors from our network, with clear fixed proposals
No obligation · Response within 24 hours · Your details are only used to contact you.
- [YEARS] years of experience
- [PROJECTS]+ completed projects
- Response within 24 hours
- Free feasibility check
- Vetted, CSLB-licensed contractors
Solid ADU is active in Brentwood and the immediate area, including Pacific Palisades, Sawtelle and West Los Angeles. We can guide your junior ADU (JADU) too, from first advice through the final LADBS inspection, with the build done by a licensed contractor from our network.
Brentwood combines the flats south of Sunset, with their 1930s and 1940s traditional and ranch homes on deep lots, and the hillside streets and canyons to the north. Lot sizes here are among the most generous on the Westside, which opens up the full range of ADU options: converting an existing garage, building a detached guest house or adding a spacious backyard unit for family. Many Brentwood owners are less focused on rental income and more on flexibility, housing for parents or adult children, a private office, or space for household staff. Hillside parcels involve extra LADBS review for grading and access, so we assess that early, during the free feasibility check. The result is a clear picture of what your property allows before design work begins. Think of 1930s traditional homes, ranch homes on deep lots, hillside and canyon homes and gated estate properties: we tailor the approach to the type of home and the condition of your lot and existing structures.
A Junior ADU, usually called a JADU, is a small independent living unit of no more than 500 square feet created within the walls of your existing single-family home. Think of a spare bedroom, a den, or a section of an attached garage that becomes a private studio with its own exterior entrance, an efficiency kitchen, and either its own bathroom or a shared one with the main house.
Want to find out what is possible first? We get it. Feel free to call for a no-obligation consultation or leave your phone number. We respond within 24 hours and talk through your project with zero commitment.
Want to know what is possible on your Brentwood lot?
Call now or leave your phone number. We walk through your situation for free, with no obligation.
Junior ADU (JADU) in Brentwood: what is possible
Free feasibility check and layout advice
We review your floor plan and the space you have in mind, confirm it can work as a JADU under state law and Los Angeles rules, and help you shape a layout that fits daily life: entrance, kitchen wall, bathroom, and storage.
Bedroom or bonus room conversion
A spare bedroom, den, or oversized primary suite is often the ideal JADU footprint. Your contractor closes it off from the main house, adds the required entrance and kitchen, and finishes it as a complete studio.
Attached garage conversion to a JADU
Part or all of an attached garage can become a JADU because it sits within the existing structure. Your contractor insulates, replaces the garage door with a proper wall and windows, and builds out the interior.
Separate exterior entrance
Every JADU needs its own entrance from the outside. Your contractor creates a new door opening in a logical, private spot, with a proper header, weatherproofing, and a finish that matches the house.
Efficiency kitchen installation
The required efficiency kitchen includes a cooking appliance, a food prep counter, and cabinets sized to the unit. We help you plan a compact kitchen that meets the rule and is genuinely pleasant to cook in, and your contractor builds it.
Private bathroom or shared sanitation
A JADU may have its own bathroom or share one with the main house through an interior connection. We advise which option fits your layout and budget, and your contractor builds either one to code.
Sound and fire separation from the main home
Your contractor builds the separation wall between the JADU and the main house with proper insulation and drywall assemblies, so both households have privacy and the unit meets code requirements.
Electrical, plumbing and ventilation
Your contractor's licensed trades run the wiring, outlets, and lighting the unit needs, extend water and drain lines for the kitchen and bathroom, and add ventilation so the compact space stays fresh and dry.
Windows, natural light and egress
Living spaces need daylight and a code-compliant emergency exit. Your contractor adds or enlarges windows where the plan requires it, which also makes a converted room feel like a real home.
You can find the full overview on our junior ADU (JADU) page.
Why invest in a junior ADU (JADU)?
Homeowners across Los Angeles consider a JADU for very practical reasons. Do any of these sound familiar?
- A parent or adult child needs a place of their own, but you want them close by.
- You want rental income, but the budget does not stretch to a full detached ADU build.
- A bedroom or den has been sitting unused for years while housing space is scarce.
- Your attached garage stores everything except a car, and you suspect it could be worth far more as living space.
- You have read about ADUs and JADUs online and cannot tell which rules actually apply to your property.
- You are worried about permits and do not want an unpermitted conversion that causes problems when you sell.
What happens after you reach out
- 1
Free feasibility check
Call us or leave your number, and we respond within 24 hours. We look at your lot, your garage or backyard, and your utilities, and we talk through what you want: rental income, space for family, or a home office. You get an honest picture of what is possible before you spend anything.
- 2
Matched with the right contractor
We match you with vetted, CSLB-licensed contractors from our network whose track record fits your type of ADU, your lot and your budget. We verify licenses, insurance and past work, so you do not have to.
- 3
Compare clear fixed proposals
You receive clear fixed proposals with the scope, schedule and price spelled out. No fine print and no surprise costs. You compare, ask us anything, and pick the contractor you feel confident with, at your own pace.
- 4
Plans and LADBS permits
Your contractor's team prepares the complete permit set: architectural plans, structural calculations and the energy compliance documents California requires. We guide you through the LADBS permit process and keep you posted on plan check and corrections. Nothing is submitted until you approve the design.
- 5
Your contractor builds, we stay involved
Your licensed contractor builds your ADU and schedules every required city inspection along the way. We stay involved as your single point of contact, so you always know where things stand.
Junior ADU (JADU) costs in Brentwood
What a JADU costs depends heavily on the starting point. Converting a bedroom that already has a bathroom next door is a very different project than converting attached garage space that needs insulation, a new wall where the garage door was, and all-new plumbing runs. That is why you will not see standard prices here: for your specific house they would almost always be too high or too low.
- The space you start from: a finished bedroom, a bonus room, or unconditioned garage area
- A private bathroom versus shared sanitation with the main house
- How far water, drain and gas lines have to run to reach the new kitchen and bathroom
- The capacity of your electrical panel and how much new circuitry the unit needs
- Creating the separate exterior entrance and any new or enlarged windows
- Insulation and drywall work, especially in converted garage space
- The efficiency kitchen: appliance choices, cabinetry and countertop material
- Heating and cooling, typically a ductless mini-split for the unit
Get a free feasibility check for your project
Leave your phone number and we will call you back within 24 hours.
A project nearby: Mar Vista
A licensed contractor from our network completed this project in Mar Vista, in the same part of Los Angeles as Brentwood.
Want a similar result on your property?
Talk your project through with us. Free, and with no strings attached.
Also serving the area around Brentwood
We also guide junior ADU (JADU) projects in Pacific Palisades, Sawtelle, West Los Angeles and the rest of Westside.
Frequently asked questions about junior ADU (JADU) in Brentwood
Do I need to know exactly what I want?
No. You do not need to have chosen a layout, materials or finishes yet. During a free consultation we walk through the options and help you decide what fits your property and your goals.
What happens after I leave my details?
We call you back within 24 hours to briefly go over your plans. After that, if you want, we run your free feasibility check and set up a site visit with a vetted contractor from our network.
Do you visit the property first in Brentwood?
Yes. For most projects the licensed contractor we match you with starts with a free site visit at your property in Brentwood. That way your lot and the existing structure are properly assessed, and the proposal you receive is realistic.
How soon can you start in Brentwood?
That depends on your contractor's schedule, the size of your project and the LADBS plan review, which we guide you through. After your request we contact you within 24 hours and map out a realistic timeline right away.
Do you serve all of Brentwood?
Yes, our network covers all of Brentwood and also nearby neighborhoods such as Pacific Palisades, Sawtelle and West Los Angeles. Not sure whether your address falls within our service area? Just call and you will know right away.
Is my request really no-obligation?
Yes. A phone consultation, a site visit and a feasibility check never commit you to anything. You decide if and when you want to move forward.
Ready for your junior ADU (JADU) in Brentwood?
Call now or leave your name and phone number. We discuss your project with no obligation and you hear from us within 24 hours.
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