Published September 1, 2025

New housing legislation: ADUs, fourplexes, and lot splitting

Written by John Ramsey

Some of the new legislation from 2023 is starting to go into effect in parts of Washington State, and some new legislation from 2025 is also going into effect. Check out our video here as well as further resources below.

Resources:

HB 1337 Washington State Legislature

HB 1110 Washington State Legislature

HB 1096 Washington State Legislature

Please let us know if you have any questions!

Faithfully yours,

John and Jeremiah

The Ramsey Team LLC
Keller Williams Western Realty
360.499.2221
johnramsey@kw.com
2211 Rimland Dr, #124
Bellingham, WA 98226

Are you buying or selling a home?

Buying

Selling

Both

When are you planning on buying a new home?

1-3 Mo

3-6 Mo

6+ Mo

Are you pre-approved for a mortgage?

Yes

Using Cash

Would you like to schedule a consultation now?

Yes

When would you like us to call?

Thanks! We’ll give you a call as soon as possible.

When are you planning on selling your home?

1-3 Mo

3-6 Mo

6+ Mo

Would you like to schedule a consultation or see your home value?

Schedule Consultation

My Home Value