This is the third step in the City's attempt to prevent out-of-scale single-family development in the city of Los Angeles. The ordinance will apply to approximately 133,000 lots.
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The ordinance's proposed FAR (building size to lot size ratio) is based on lot size, zone, and steepness of slopes on the property.
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To determine the Maximum Residential Floor Area, one must multiply the area of each Slope Band times the percentage allowed for that slope. Then, add up all the amounts to get the total area allowed for the site. Residential Floor Area bonuses are also provided for (as in the Baseline Mansionization Ordinance), with additional options related to hillside massing and grading.
Important exemptions and criteria have been established but they are difficult to explain. You are strongly encouraged to an architect who specializes in the Los Angeles area and you can also visit the City of Los Angles City Planning Web-site.
(Source: Palisades Post, LA Times)