DADU BEE

Before You Spend $300,000+ Building a DADU, Talk to Us First

A 15-minute conversation can help you understand what's possible, what it may really cost, and what your smartest next step should be.

DADU BEE completed project — Seattle area
11+ YearsDevelopment Experience
94,000+ sq ftof DADUs Built
100+Seattle DADU Projects
3-YearWorkmanship Warranty
Start with your property

Want to Know What You Can Build?

Start with your property address.

No obligation.

How it works

Smart Decisions Start Long Before Construction

Here's how we guide every project from idea to finished DADU.

01

15-Min Consultation

Free

Discuss your goals, evaluate your property, and determine whether a DADU is worth exploring.

02

Feasibility Study

$580 · 2 Business Days

Receive a complete investment report covering zoning, market demand, rental income, construction costs, ROI, and an overall recommendation. Know if your project is worth pursuing before making a major investment.

03

Site Intelligence™

Avg $8,895 · 3–5 Weeks

We coordinate all required site investigations — bringing together surveyors, geotechnical engineers, civil engineers, arborists, and other specialists — to uncover hidden costs and prepare an accurate construction budget.

04

Permit Development

$15,000 · 4–6 Months

We prepare architectural plans, structural engineering, permit drawings, and manage the entire city approval process until your permit is issued.

05

DADU Construction

Starting at $324/sq ft · 5–6 Months

Your DADU is built by our team with dedicated project management, quality control, and regular progress updates.

06

Warranty & Support

3-Year Warranty

After completion, we stand behind our work with a comprehensive workmanship warranty and ongoing post-construction support.

The #1 DADU Budget Mistake

Planning for the house price — not the total project cost

Underground site conditions — utilities, drainage, soil layers beneath a DADU

That $260,000 DADU price usually does not include everything your property needs.

Below-the-surface costs can add $30,000–$180,000+ for utilities, excavation, drainage, access & site conditions.

Professional property intelligence

Know the Real Cost Before You Build

Before you commit to a builder, we analyze your property, what you can build, and the costs others may miss.

In 2 Business Days, You'll Know:

What you can build
Zoning & site restrictions
Utilities & site conditions
Realistic total project budget
Key risks & potential extra costs
Your best path forward

Want an accurate price for your property?

Instead of estimating, start with a Feasibility Study.

$580
Delivered in 2 Business Days
Personalized cost estimate
No obligation to build with us
The investment case

Make Your Backyard Work for You — Not the Other Way Around

$250,000+

Average profit after DADU sale

Homeowners who sell with a permitted DADU typically command a significant premium over comparable properties without one.

$3,000+/mo

Monthly rental income

Average rental income estimate for a 2-bedroom DADU in the greater Seattle area, based on current market rates.

$540,000+

Long-term rental return

Cumulative rental income over 15 years — money that works for you every month while your property appreciates.

Homeowner stories

Built on Experience
Trusted by Homeowners

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Questions, answered clearly

Frequently Asked Questions

A property-specific next step

Could Your Property Be a Great DADU Opportunity?

Every successful DADU begins with understanding your property. Enter your details, and we'll review your property to help you understand the best next step.

Free 15-minute consultation · Serving Greater Seattle homeowners