Graham, WA: ADUs, septic or sewer, land prices and hazard areas

Graham, WA ADU rules: can I build an ADU?

1,573 of the 11,897 lots in Graham (13%) are zoned for houses inside an urban growth area. On those lots, Washington's HB 1337 requires the city or county to allow at least two accessory dwelling units (ADUs). Another 9,425 lots are outside the urban growth area, where Pierce County's own ADU rules decide.

Graham, WA septic or sewer: septic records and sewer mains

6,107 of the 11,897 lots in Graham (51%) have septic records on file with the Tacoma-Pierce County Health Department. 2,651 lots are inside a Pierce County sewer service area, and 1,872 are within 300 feet of a sewer main on the county's sewer map.

Graham, WA land prices: vacant land and home sales

Vacant land in Graham sold for a median of $46,624 per acre across 64 sales since November 1, 2023. Homes sold for a median of $565,000 across 1,165 sales. 1,231 new homes were permitted since November 1, 2021.

Graham, WA flood zones, landslide and wetland areas

Of the 11,897 lots in Graham, 3,652 touch a mapped landslide hazard area, 2,052 an erosion hazard area, 524 a flood area and 2,231 an inventoried wetland, on Pierce County's maps.

Lots in Graham

From the Pierce County Assessor-Treasurer, the county's zoning, sewer, hazard and growth-area maps, and the Tacoma-Pierce County Health Department. Records as of November 8, 2026.

How these numbers are worked out · Guides

Other communities in Pierce County