Accessory Dwelling Units in Seattle – What’s the Process and Costs?

[hepij]

Hello everyone,

I'm considering adding an Accessory Dwelling Unit (ADU) to my property in Seattle and am looking for advice from anyone who's been through the process. What steps should I take to get started? What are the zoning restrictions or permit requirements in Seattle?

Additionally, I'm curious about the average costs involved, including construction, permits, and any ongoing maintenance. For those who have already built or lived in an ADU here, any insights on how it's affected your property value or daily life would be greatly appreciated!

Thanks in advance for your help!

[koxom]

Hi there!

Adding an Accessory Dwelling Unit (ADU) in Seattle can be a rewarding project, but it does require some planning. First, check the zoning regulations for your property. Seattle allows ADUs in most residential zones, but there are specific restrictions based on lot size and location. You'll need to obtain permits from the Seattle Department of Construction and Inspections (SDCI), which will review your building plans.

The cost of building an ADU typically ranges from $150,000 to $300,000 depending on size and materials, with permits adding several thousand dollars to the cost. Maintenance costs will depend on the unit's design and use, but overall, ADUs tend to increase property value and can provide rental income. It's also worth considering how the addition of an ADU might impact your daily life, whether through additional income or space for family members.

[xiyoyos]

Adding an Accessory Dwelling Unit (ADU) in Seattle involves checking your property's zoning regulations to ensure it's allowed. The city has specific rules for Accessory Dwelling Units Seattle, and you'll need to apply for a building permit through the Seattle Department of Construction and Inspections (SDCI). This process requires submitting detailed plans for the unit. Construction costs typically range from $150,000 to $300,000, depending on size and materials, with permits and fees adding another few thousand dollars. Ongoing maintenance costs depend on the unit's design. Many people report that building an ADU increases property value and provides rental income, making it a great long-term investment.