My Home Floor Plans

Better home plans, for less.

Plan Price

Style

# of Garage Bays

After-Build Photos

Bed and Bath

Ceiling Features

# of Elevations

Garage Features

Indoor

Kitchen Features

Outdoor

Unique

Exterior Material

Unique/Size

Loading House Plans...

Top in-law suite houses Available for Illinois | My Home Floor Plans

Design Your Ideal in-law suite house in Illinois

Whether you're planning a guest suite or cozy escape, our in-law suite house layouts offer the flexibility and quality today's homeowners expect.

Each blueprint set includes CAD files, full engineering, and a no-restrictions build license — all tailored for Illinois.

Build smarter and faster with plans that meet local code and can be easily customized to your exact needs.

Top Benefits of Our in-law suite house Plans in Illinois

Printable & Editable Plans – CAD and PDF versions come standard with every purchase.
Structural Review Included – Each layout is engineered for safety and compliance in Illinois.
Build as Many as You Want – No additional charge for multiple builds.
Foundation Choice Included – Switch to crawlspace or basement foundations with no added fee.
Easy Customization – Adjust floor plan details quickly and affordably.

From backyard suites to long-term investments, these in-law suite house plans are tailored for convenience, flexibility, and cost-efficiency in Illinois.

Trending in-law suite house Styles in Illinois

From breezy beach escapes to timeless barndo builds, these in-law suite house styles are loved by Illinois builders for their visual appeal and adaptability.

Frequently Asked Questions About in-law suite house in Illinois

What is a in-law suite house?

A in-law suite house is a secondary structure — often detached — used for guest accommodations, backyard rentals, or flexible living space. Our plans in Illinois offer customization and code-compliant layouts.

Can I adjust the plan for my Illinois property?

Yes. We offer fast and affordable customization for in-law suite house plans — including layout edits, foundation changes, and more to meet Illinois's requirements.

Will it meet Illinois building codes?

All plans include structural engineering and can be adapted to meet Illinois permitting and zoning codes. Let us know your lot details and we’ll help ensure compliance.

What’s included in the purchase?

You get full CAD and PDF files, an unlimited-build license, and free foundation modifications — everything needed to start building your in-law suite house in Illinois.

Our Plans Are Built, Not Theorized

Unlike most plan websites, our in-law suite house options in Illinois are based on actual construction data. With CAD + PDF files, structural reviews, and field-tested layouts, every plan is practical, accurate, and up to code.

From Illinois soil conditions to climate loads, our in-law suite house plans are engineered for practical local use. No retrofitting or guesswork needed.

Build Smarter with Our in-law suite house Designs in Illinois

With full CAD access, engineered approval, and no build limits, our plans make your Illinois construction project easier and faster than ever.

View all architectural styles or contact our design team to get started today.

Affordable Designed for Idaho | My Home Floor Plans All house Plan SEO Pages Best Available for Indiana | My Home Floor Plans

Showing 1–15 of 3001 resultsSorted by average rating

Template Override Active

SALE! $1,386.39 Sale! Quickview
20-1906 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 83'-4"

Depth: 62'-8"

Htd SF: 4,116

Unhtd SF: 1,692
Template Override Active

SALE! $1,386.39 Sale! Quickview
20-1255 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 70'-0"

Depth: 61'-1"

Htd SF: 4,698

Unhtd SF: 1,391
Template Override Active

SALE! $2,039.19 Sale! Quickview
20-1136 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $3,598.56.Current price is: $2,039.19.

Width: 95'-0"

Depth: 63'-6"

Htd SF: 7,103

Unhtd SF: 1,668
Template Override Active

SALE! $1,386.39 Sale! Quickview
19-1766 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 73'-10"

Depth: 62'-5"

Htd SF: 4,183

Unhtd SF: 2,256
Template Override Active

SALE! $1,386.39 Sale! Quickview
19-1654 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 72'-4"

Depth: 67'-11"

Htd SF: 3,489

Unhtd SF: 1,912
Template Override Active

SALE! $2,039.19 Sale! Quickview
18-2143 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $3,598.56.Current price is: $2,039.19.

Width: 79'-2"

Depth: 69'-0"

Htd SF: 6,146

Unhtd SF: 2,520
Template Override Active

SALE! $2,039.19 Sale! Quickview
17-2114 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $3,598.56.Current price is: $2,039.19.

Width: 67'-11"

Depth: 156'-4"

Htd SF: 8,061

Unhtd SF: 1,649
Template Override Active

SALE! $1,386.39 Sale! Quickview
17-1767 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 60'-10"

Depth: 81'-11"

Htd SF: 4,658

Unhtd SF: 1,158
Template Override Active

SALE! $1,386.39 Sale! Quickview
17-1037 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 93'-5"

Depth: 92'-5"

Htd SF: 5,621

Unhtd SF: 1,512
Template Override Active

SALE! $1,141.59 Sale! Quickview
17-1622 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,014.56.Current price is: $1,141.59.

Width: 36'-0"

Depth: 41'-8"

Htd SF: 2,619

Unhtd SF: 1,194
Template Override Active

SALE! $2,039.19 Sale! Quickview
20-1669 APARTMENT COMPLEX – House plan details
Rated 5.00 out of 5
Original price was: $3,598.56.Current price is: $2,039.19.

Width: 101'-0"

Depth: 68'-4"

Htd SF: 12,500

Unhtd SF: 2,500
Template Override Active

SALE! $1,386.39 Sale! Quickview
17-1936 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 65'-2"

Depth: 77'-6"

Htd SF: 3,931

Unhtd SF: 1,368
Template Override Active

SALE! $1,141.59 Sale! Quickview
16-1805 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,014.56.Current price is: $1,141.59.

Width: 36'-8"

Depth: 51'-0"

Htd SF: 2,873

Unhtd SF: 266
Template Override Active

SALE! $1,386.39 Sale! Quickview
16-1438 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 34'-6"

Depth: 41'-8"

Htd SF: 3,442

Unhtd SF: 1,257
Template Override Active

SALE! $1,386.39 Sale! Quickview
16-1285 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 28'-3"

Depth: 97'-8"

Htd SF: 4,799

Unhtd SF: 1,554