The 1967 Roundhouse was designed by La Mesa Architect James Hurley to resemble the 1964 World’s Fair Ford Rotunda in New York. A Negative Declaration (NegDec) was used to allow the demolition of the Roundhouse in 2018. La Mesa’s General Plan (Plan) contains a historic preservation element. In it, Policy HP-1.2.2 mandates that the city establish “guidelines for identifying eligible properties in the Modern Period (circa 1935-1975) throughout the City.” The city relies on a 1980’s historic building survey, despite its 2012 Plan update. The NegDec stated that demolition would have no impact on historic resources based on the Plan. The Roundhouse was not 50 years old when the 1980’s survey was conducted, nor when the Plan was updated in 2012, but it was certainly 50+ when it was demolished. Because of the Roundhouse’s age and obvious status as a modern building, more than a NegDec should have been prepared. This building had significance to La Mesa and the broader region. Voting for this will let La Mesa know they should complete updated surveys and let other cities in the county know these modern structures are historically significant.