Building a DADU in Redmond: Permits, Costs, and Opportunities

Redmond: Tech Campus Rental Demand

Redmond is synonymous with tech — Microsoft’s headquarters, Nintendo of America, and a growing list of tech companies make it one of the strongest rental markets in King County. DADUs in Redmond benefit from consistent tenant demand, high rental rates, and residential lots that are often spacious enough for comfortable DADU construction.

Redmond DADU Regulations

Maximum size: 1,000 square feet
Two ADUs allowed per HB 1337
Setbacks: 5 feet side and rear
No owner occupancy requirement
No additional parking required

Redmond Permit Process

Department: Redmond Development Services
Timeline: 3–6 months typical
Process: Similar to other Eastside cities — online submission, multi-department review
Design review: May be required in certain overlay districts

Redmond DADU Costs

All-in range: $440,000–$690,000
Permit fees: $42,000–$78,000
Eastside premium: 10–15% above average King County rates

Rental Income in Redmond

Studio/1-bed: $2,100–$3,000/month
2-bed: $2,600–$3,500/month
Near Microsoft campus: Premium of $200–$400/month above base rates

Tech employee relocations create consistent demand. Many prefer the privacy and residential feel of a DADU over apartment living. See our rental income projections.

Redmond Neighborhood Opportunities

Education Hill

Close to Microsoft campus
Larger lots in established neighborhoods
Strong demand from tech workers

Downtown Redmond

Growing urban core with Light Rail access
Walkable to restaurants and shops
Mixed lot sizes — some tight, some generous

Overlake/Crossroads

Central location between Microsoft, Meta, and Amazon offices
Strong rental market with diverse tenant base
Moderate property values with good ROI potential

Sammamish Valley/Bear Creek

Larger rural lots with more flexibility
May require septic system considerations
More space for creative DADU designs

Tips for Redmond DADU Projects

Design for tech tenants. Strong internet infrastructure, dedicated home office space, and modern finishes appeal to the Redmond rental market.
Consider proximity to transit. DADUs near Light Rail stations command premium rents.
Budget for Eastside costs. Use the upper end of King County cost ranges for planning. Our hidden costs guide helps avoid surprises.
Plan for the long term. Redmond’s growth trajectory supports strong property appreciation and rental growth.

APEX DADU Serves Redmond Homeowners

We know Redmond’s neighborhoods, permit process, and rental market. APEX DADU builds DADUs designed to attract quality tenants in one of King County’s strongest rental markets.

Contact APEX DADU for your Redmond DADU consultation