Browse Brentwood ADU Plans

Start your project by finding an ADU plans that works in Brentwood

🏠 Over 1212 ADUs built in Contra Costa County!
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Browse ADU Plans

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Tal 468
165900
$
468
sf
26
'
x
18.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Aya 720
248900
$
720
sf
30
'
x
24.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Adam 1000
295900
$
1000
sf
40
'
x
25.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Adam 520
174900
$
520
sf
26
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Sela Mini
34900
$
80
sf
10
'
x
8.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Alon 240
84900
$
240
sf
20
'
x
12.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
A-frame 120
22900
$
120
sf
12
'
x
10.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Casita 850
212500
$
850
sf
39
'
x
33.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The 620
230000
$
620
sf
44.4
'
x
14.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The 240
80000
$
240
sf
24
'
x
9.9
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Zion 1280
279000
$
1280
sf
56
'
x
40.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Microhaus
89990
$
136
sf
19
'
x
7.2
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Prospect
320000
$
800
sf
38
'
x
32.1
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Adore Horizon 866
329900
$
866
sf
31.6
'
x
27.6
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Connect 3
405900
$
960
sf
40
'
x
24.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Arlo
165000
$
535
sf
42
'
x
12.8
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Snap ADU Two-Story 2b2b
385000
$
1200
sf
30
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The Modal 01
245000
$
432
sf
32
'
x
13.5
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Napa 600
138000
$
600
sf
30
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
SOL 480
86300
$
480
sf
24
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Navajo 960
161280
$
960
sf
40
'
x
24.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Vor 640
134900
$
640
sf
40
'
x
16.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The 146
30000
$
146
sf
15
'
x
10.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The 106
27000
$
106
sf
11
'
x
10.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Novato 1200
249000
$
1200
sf
37.6
'
x
32.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Kithaus K6
81500
$
330
sf
25.5
'
x
13.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Kithaus K9
132000
$
496
sf
38
'
x
13.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Kithaus K4
59500
$
226
sf
17.4
'
x
13.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Kithaus K7
94500
$
390
sf
30
'
x
13.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
HO4
193537
$
1280
sf
40
'
x
32.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
mTwo
379999
$
800
sf
33
'
x
24.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
HO3
173236
$
960
sf
40
'
x
24.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
mOne
199999
$
400
sf
34
'
x
12.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Connect 5
400632
$
1600
sf
40
'
x
40.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Connect 2
226486
$
640
sf
40
'
x
16.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Model 480
108960
$
480
sf
24
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Model 264
60000
$
264
sf
22
'
x
12.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Plus Hus Full
79000
$
320
sf
20
'
x
16.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Sela Plus
38900
$
120
sf
12
'
x
10.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Erez 540
177900
$
540
sf
27.25
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Adam 800
254900
$
800
sf
40
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Oren 1104
338900
$
1104
sf
48
'
x
23.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Gal 442
148900
$
442
sf
30
'
x
14.8
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The H1200a
180000
$
1200
sf
45
'
x
26.6
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The H750
138000
$
750
sf
32
'
x
23.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The H650b
122000
$
650
sf
44
'
x
15.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
The H800
147000
$
800
sf
40
'
x
20.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Duo
149000
$
481
sf
42
'
x
11.5
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Mono
118000
$
321
sf
28
'
x
11.5
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Holo
97500
$
240
sf
24
'
x
10.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Abodu Two
312800
$
610
sf
44
'
x
14.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Abodu One
268800
$
500
sf
35
'
x
14.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details
Abodu Studio
228800
$
340
sf
28
'
x
12.0
'
Studio
2 Bedroom
3 Bedroom
1 Bedroom
Plan Details

The ADU rules

Know what's allowed before you build an ADU

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Setbacks

California state law dictates a minimum 4-foot setback from the rear and side yard for Accessory Dwelling Units (ADUs). The distance between an ADU and the primary residence isn't set at the state level and may be subject to local regulations.

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Square Footage

In California, you can build an Accessory Dwelling Unit (ADU) up to 1,200 square feet, subject to local regulations. However, state law mandates that local jurisdictions must allow ADUs of at least 800 square feet and 16 feet in height.

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Height

Generally, you should be able to build an ADU that’s at least one-story and 16 feet in height. Depending on your residential zoning code, you may be able to build two stories

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Parking

Generally, conversion ADUs and junior ADUs don’t require any parking. Attached and detached ADUs will require 1 parking space, unless your project qualifies for an exemption from the parking requirements.

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Number of ADUs allowed

If you have a single-family home, you can for the most part have one or two ADUs on it. The number of ADUs allowed on multi-family properties depends on the type of ADU constructed and how many dwelling units are already on the property.

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Minimum Lot Size

The good news is that your property can be any size and be eligible for an ADU. There are no minimum lot size restrictions.

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Allowed locations

Generally, you can have an ADU on your property if residential uses are allowed on it, although exceptions may apply. Also, you must have an existing or proposed single-family home on your property or an existing multi-family building (which is a fancy way to say a duplex, triplex, or other type of apartment or condo building).

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Renting the ADU

Yes, your ADU can be rented out, although most cities don’t allow short-term rentals of ADUs. This means you can probably only rent your ADU out for a period of month or longer.

Generally, the property owner will only have to live on the property if a JADU is built on it.

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Duplex and Triplex

You may be able to build based on how your property is zoned. You’ll need to call your local zoning department to confirm.

Brentwood

Zoning and Building standards for ADUs

Get Financing

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Don't let the cost of building an ADU hold you back. Let us help you bring your ADU dream to life with our easy financing options.

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Find Your ADU Fit

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