Home Buying in King County>Question Details

Ray Szeto, Home Buyer in Seattle, WA

If the lot is 39,204 sf zoned Ra5 in King County, how many houses can be built?

Asked by Ray Szeto, Seattle, WA Fri Jun 27, 2008

Help the community by answering this question:


Here's a look at the King County zoning codes and what they mean:

Development Conditions:
Base zoning codes may be modified by one of more of the following development codes:

P: Parcel-specific condition
SO: Special district Overlay
DPA: Demonstration Project Area

Base Codes:
"DU" stands for "Dwelling Unit"

Agricultural, one DU per 10 acres
Agricultural, one DU per 35 acres
F Forest
M Mineral
RA-2.5 Rural Area, one DU per 5 acres (not a typo)
RA-5 Rural Area, one DU per 5 acres
RA-10 Rural Area, one DU per 10 acres
UR Urban Reserve, one DU per 5 acres
R-1 Residential, one DU per acre
R-4 Residential, four DU per acre
R-6 Residential, six DU per acre
R-8 Residential, eight DU per acre
R-12 Residential, 12 DU per acre
R-18 Residential, 18 DU per acre
R-24 Residential, 24 DU per acre
R-48 Residential, 48 DU per acre
NB Neighborhood Business
CB Community Business
RB Regional Business
O Office
I Industrial
1 vote Thank Flag Link Mon Jan 19, 2009
Can we register RA5 Zone land under different Buyers and so that means can each one construct one home. ex: If 5 people take RA5 - 5 acre land and Sub-register under their own name , 1 acre for each. can each one build home in their own 1 acre.?
And What does RA3.5 signifies... as per above its one DU per 5 acres category?
Flag Sat Aug 2, 2014
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