Turn Your Backyard Into Income. Or Independence.

Our in-law-suite house plans help create a safety net.

Explore legal, buildable options on your property in minutes—filter by size and number of bedrooms, overlay over your backyard to see what fits.

Add a house to your backyard without overwhelm. With expert help every step of the way.

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ADUs in AR

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Custom Design tailored to your property and goals
Structural Engineering to meet local building codes
Permit Approval through your local city or County

Explore Our Permit Ready Floor Plans

Popular In Law Suite House Plans from 200 Sq Ft to 1,000 Sq Ft

In Law Suite House Plans 200 sq ft

Minimal size of an accessory dwelling unit in California by law is 150 sf ft. We are able to fit a bathroom and small kitchenette into a 200 sf ft studio. The most expensive price per square foot.

In Law Suite House Plans 500 sq ft

This one bedroom one bathroom can be built with a flat roof or with a more traditional pitch roof depending on the wind and snow load in your location.

In Law Suite House Plans 750 sq ft

This two bedroom one bathroom ADU has a primary en suite bathroom and an additional bathroom with access from the living area.

In Law Suite House Plans 1000 sq ft

This two bedroom two bathroom ADU has a primary en suite bathroom and an additional bathroom with access from the living area. The kitchen has an option to become a separate room for those who like to cook spicy food.

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Trust our proven process to guide you towards your completed backyard house

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Mixed Use Studio In Law Suite House Plan

Adding a guest house for your mother-in-law

All the comforts for your guest

Turn unused space in the back of the property into a studio that could serve as a guest house for your mother -in-law, pool house for your kids and a home office for you when no one is there.

Kitchen with dishwasher, cooktop and microwave
A comfortable bathroom with walk-in shower
TV and dining areas

Design choices

The exterior look was dictated by the exterior of the main house. Panelling, sound equipment, sun tunnel were added on per owner’s request.

Completed in 2024

Result

A comfortable bathroom accommodates a spacious “walk-in” shower with a niche and a generous medicine cabinet with lit mirror.

The open space living room / kitchen area has enough space for a work area looking into the backyard and letting natural light into the space.

Build homes with help of AR - looking at ADU through iPhone with AR

This house has its digital twin in our ADU Viewer.Use your iPhone to try in your backyard.

Must-have features

We will guide you on what In Law Suite House Plans need to have to be comfortable. The style, traditional or contemporary, the colors – are all for you to choose from our curated selection of materials and vendors.

Exterior features

Lighting fixture at front door, lowered door viewer
Dual pane windows for comfort
No step entrance or ramp
Fully insulated floor, walls and ceiling

ADU amnesty candidate #3 Spanish style house

Interior features

Dimmable LED lights
36'' min doorways and hallways
Lever door handles
Slip-resistant low-maintenance flooring

Full Kitchen

Color-contrasting countertop
Adjusted countertop and appliances heights
Large-size glowing, two-way light switches
Smoke and carbon monoxide detectors
Ergonomic pulls for cabinetry hardware

Full Bathroom

Roll-in showers
Hand-held showers and shower seats
Grab bars and hand rails
Raised toilet seat
Medicine cabinet with vanity light and outlet

A construction project sounds like a challenge?

We make it easy to get started

Create property site plan

Let us show you: 1. How big you can build. 2. How much it may cost.

Select the best floor plan

Get started with the plan that fits most of your requirements and then tweak it to fit 100%.

Compile the permit plan set

The number of pages in your plan set can differ from 8 to 140 (no kidding). It all depends on property specifics and city (or county) requirements. The better prepared your first submission is, the faster you get your permits.

Respond to Plan Checker comments

Do you know that the most frequent reason it takes such a long time to pull permits is the number of weeks that passed between the day the city had given plan check comments and the day your team responded to them?