Supervisor Aaron Peskin said Tuesday that he has found two properties in his district to house Navigation Centers for the homeless.

Perturbed by the number of people he sees sleeping on sidewalks in the North Beach, Chinatown and Embarcadero neighborhoods he represents, Peskin took it upon himself to find the sites — a Public Works-owned parking lot at 88 Broadway and a port-owned shed at Pier 23, near the popular Pier 23 Cafe.

At Tuesday’s board meeting he introduced an ordinance to temporarily convert 88 Broadway into a shelter that offers substance abuse and job training, which are central to Mayor Ed Lee’s strategy to fight homelessness. Port staff would have to initiate the process to open a site at Pier 23, which would need approval from the Board of Supervisors and Port Commission.

Peskin told his board colleagues that he co-hosted a community meeting earlier in the month with officials from San Francisco’s Police and Public Works departments, as well as the Department of Homelessness and Supportive Housing. Nearly 200 residents and neighborhood leaders attended, he said.

“As many of you know, it is no small feat to get the diverse communities in our districts to agree on much of anything,” Peskin said, “but it was actually quite moving to see residents from Telegraph Hill to Chinatown to Middle Polk recognize the need to come together around effective and forward-thinking solutions to our homeless crisis.”

His proposal comes as District Nine Supervisor Hillary Ronen pursues negotiations for two Navigation Centers in her district — one deep in the Mission, and another near the “Hairball” tangle of freeway arteries that intersect over Cesar Chavez Street, Potrero Avenue and Bayshore Boulevard.

Both supervisors said they had support from Lee and Public Works Director Mohammed Nuru.