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Guides on costs, permits, financing, and floor plans — plus stories from real ADU builds.

One-bedroom modular ADU lifted by a crane during installation
Prefab Building

ADU kits – free house design with prefab experts

ADU kits pair free house design from prefab experts with premium materials, cutting build time and cost for backyard units, rentals, and guest suites.

playing with granny
ADU

Granny Pods as a solution for independent retirees

What granny pods are, what they cost, and how these backyard units give aging parents independence with safety and accessibility close to home.

Looking at checklist for new home construction
ADU

Construction Contract Checklist: Quick and Smart Review

A quick, smart checklist for reviewing your construction contract: scope, payment terms, change orders, and the clauses that protect you.

Popular ADU designs in 2026
ADU

Popular ADU Designs In 2026

The most popular ADU designs in 2026: modern, traditional, and compact styles, with layout ideas to fit your lot, budget, and goals.

400 square feet ADU exterior with flat roof
ADU

How big is 400 square feet house? Plans and Designs.

See how big 400 square feet really is, with smart ADU floor plans, design ideas, and tips to make a compact 400 sq ft home feel spacious.

Ideas for a modern cottage court — several models
ADU

5 ideas for a cottage court — building a rental or for-sale unit

Creative, cost-effective ideas for building cottage courts as affordable rentals or for-sale units — shared spaces, eco materials, prefab, and styles.

ADU Planner 15 milestones
ADU

ADU Planner for your accessory dwelling unit with 700 designs

Use our free ADU planner to explore pre-designed plans, get all-in estimates, and follow a clear permit-to-build path. Boost your home value 20–30%.

20x20 Mother-in-Law Suite interior design
ADU

Modern 20x20 Mother-in-Law Suite: ideas, costs, floor plans

Design a 400 sq ft 20x20 mother-in-law suite: layout, accessibility, budgeting, and a permit-ready ADU package. See ideas, costs, and floor plans.

prefab ADU kit option with transom windows and white stucco
ADU

Prefab ADU Kits - Magic Homes for Any Backyard

Compare prefab ADU kit methods, sizes, and costs, then see the steps from site plan to a move-in-ready backyard unit in weeks.

Drawing a site plan by hand as a DIY project
ADU

Site Plans for Fast Building Permit Applications

Learn what a site plan must include and how to create one for permit approval. Compare DIY, online services, and a licensed surveyor.