The King County government entered into an agreement with the Dincov family in 1954 to operate a
gravel mine on their East Redmond property for use in constructing
Interstate 405. The Dincovs' neighbors, in opposition to the gravel mine, proposed to form an
incorporated town in order to halt operations. A
special election was held on August 14, 1956, and 108 residents voted in favor of incorporating East Redmond as a fourth-class town, while 67 opposed. The town's government passed an
ordinance that prohibited the county's gravel mine operations, leading King County to seek a
restraining order against the town. East Redmond officials threatened to arrest county employees violating the ordinance, and the requested temporary restraining order was denied by a
Superior Court judge. The county was eventually denied an
injunction that removed the town from interfering with the mine, due to expired and lapsed permits. In February 1957, the King County Board of Commissioners received a
petition signed by
Snoqualmie Valley residents asking for the dis-incorporation of East Redmond. The petition concerned the maintenance of Novelty Hill Road, which ran through East Redmond towards the Snoqualmie Valley, which would be too expensive for East Redmond to maintain; the petition also alleged that the town had created a
speed trap on the road. Another petition was presented to the town council that month, signed by 125 of its 375 residents hoping to trigger a dis-incorporation election. The election was called off after a ruling by a Superior Court judge after the discovery of signatures that did not match voter registrations, as well as withdrawn signatures, which reduced the number of petitioners to below the majority of registered of voters. Residents of the Novelty Hill Road area unsuccessfully attempted to secede from East Redmond through a special election in May 1957;
The Seattle Times reported that some residents had voted in favor of staying in East Redmond in order to be eligible to vote for dis-incorporation at a later date. A petition to dis-incorporate a majority of the town was certified in June, and the county scheduled a vote on the matter in October. East Redmond voted 164 to 24 to dis-incorporate three-fourths of the town, leaving only 50 residents and . The town
annexed the following month, including the Dincov gravel mine, to extend the city's boundaries to
Lake Sammamish. In March 1962, King County Prosecutor Charles O. Carroll filed a
court action on the request of a Superior Court judge and 42 East Redmond residents that challenged the validity of East Redmond's fourth-class status. Two years later, on March 10, 1964, the Superior Court ruled that the incorporation was invalid for several reasons: the incorporated town was , but state law limited fourth-class towns to a size of ; the town did not meet the minimum population of 300 required for the status; and the incorporation vote had taken place outside of the proposed town, in neighboring
Redmond. East Redmond's government, then conducting a regular election, East Redmond became the second town in King County history to be dis-incorporated, following
Ravensdale in the 1920s. The area remains unincorporated, as part of the
Union Hill-Novelty Hill census-designated place. ==Geography==