What Is An HPOZ?

Many communities in CD10 are now or are in the process of becoming historic districts. With this designation neighborhoods are able to preserve the distinctive character and beauty of their respective communities, which in turn will preserve the rich cultural and architectural history for future generations.

Historic districts in Los Angeles are defined by a special zoning ordinance called the Historic Preservation Overlay Zone (HPOZ), which is a City Planning Department designation added to our existing zoning regulations. 

 HPOZ designation recognizes the special importance of of a neighborhood, helping increase community pride and helping the neighborhood gain more importance and distinction in the eyes of many City employees.

The HPOZ historic designation applies only to the exteriors of buildings, and the site surrounding them. This includes features such as windows, doors, roofs, and porches, along with landscape and hardscape features such as driveways and walkways. HPOZ designation does not apply to any building interior and does not affect interior alterations.

HPOZ designation does NOT require that anyone spend money to restore a building or to make any alterations or improvements.

HPOZ designation can lower property taxes. Qualifying houses in HPOZs can apply to a state program (the Mills Act) which can reduce property taxes by up to 50%. HPOZ designation will NOT result in higher taxes.

HPOZ designation can increase the value of property. Studies have shown that over the long term historic districts have higher property values.

HPOZ designation can save homeowners money. Exterior alterations are reviewed by a neighborhood board experienced with fixing up and maintaining historic buildings. They can advise you on how to do the work, how to save money, and where to find resources for improvement.

HPOZ designation gives neighbors a greater say over new development, such as apartment or commercial buildings along the main boulevards.


Each HPOZ establishes a neighborhood design review board which is an advisory body to the City Planning Department. Each board consists neighbors and professionals who are knowledgeable about the history and architecture of the community, historic preservation requirements and, ideally, restoration construction techniques. The board members are appointed by various City entities.

The HPOZ is part of the normal building permit process. If a homeowner decides to start a project that requires a building permit, such as a new addition, or new windows, then the Planning Department and for many items the HPOZ board reviews and approves the project.

Each HPOZ has a Preservation Plan that includes guidelines that are commonly used by historic districts throughout the country.

HPOZs have different procedures depending on the type of work that is being proposed. In general, work that does not require a permit, such as routine maintenance, is not reviewed by the board. Regular work that needs a permit is reviewed by the board which makes a recommendation to the Planning Department. Minor changes to the exterior are handled by the board quickly. Major work, such as demolition, removal of the exterior of a historic building, or the construction of new buildings, requires a public hearing. All decisions can be appealed to the Planning Commission.

If you do live in or own property within an HPOZ, there are additional benefits (for example, you can utilize the State Historic Building Code when renovating your house, bypassing some local building codes that do not reflect the realities of older construction. And, you may not need to retrofit older toilets to comply with water conservation regulations upon sale of your house.) But you should also be sure to get building permits for any construction work you do, since neighbors in HPOZs do tend to keep an eagle eye out for unpermitted construction.

It's been said that the owner of a historic house is only its steward for a short period of time, but its architecture can inform many future generations about the history of not just the building but also the people who together created the communities we call home. HPOZs help ensure those legacies.



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About Us

Established in August of 2008 by writerartist Dianne V. Lawrence, The Neighborhood News covers the events, people, history, politics and historic architecture of communities throughout the Mid-City and West Adams area in Los Angeles Council District 10.

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