Title 24 Reports in Oakland
All of Oakland is climate zone 3, the hills included — elevation inside the city does not change it. Cross the ridge and the Tri-Valley is zone 12.
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All of Oakland is zone 3, the hills included
Every one of the city's 15 ZIP codes carries zone 3 — from the estuary and West Oakland up through Rockridge, Montclair and the Skyline ridge. Height above the bay makes no difference to the assignment, which is worth saying plainly because the opposite is widely assumed. A project on Skyline Boulevard is modelled on the same zone as one on Broadway.
The ridge is the dividing line
What changes is the far side of it. Oakland and Orinda sit at opposite portals of the Caldecott Tunnel, and they are in different climate zones: Oakland is zone 3, Orinda is zone 12. Lafayette, Moraga, Walnut Creek and Danville are zone 12 as well.
So are Dublin, Pleasanton, Livermore and Sunol — and those are in Alameda County, the same county as Oakland. That is the detail that costs people time, because "Alameda County" is not a single answer. The bay side is zone 3, together with Alameda, Emeryville, Piedmont, San Leandro, Castro Valley, Hayward, Union City, Newark and Fremont, while the Tri-Valley behind the hills is zone 12. Anyone working across the county is working in two zones, and a set of calculations run for a Livermore address shares nothing with an Oakland one except the code it cites.
Permitting through Planning and Building
Permits are issued by the City of Oakland Planning and Building Department, whose Bureau of Building plan-checks the energy compliance forms alongside the architectural drawings. Projects on unincorporated county land are reviewed by Alameda County instead — and as above, which zone that falls in depends on which side of the ridge the parcel sits.
Common Title 24 Questions in Oakland
- Are the Oakland hills in a different climate zone from the flatlands?
- Is Orinda in the same climate zone as Oakland?
- Is all of Alameda County one climate zone?
- Does a Livermore or Pleasanton project use the same zone as Oakland?
- Does an Oakland ADU or basement conversion need an energy report?
- What does the Bureau of Building check in the energy forms?
- Does the city or Alameda County review my Oakland permit?
- Do Oakland tenant improvements need the nonresidential forms?
Oakland projects fall in California climate zone 3. The zone drives the envelope and equipment requirements a report has to meet, and a single city can span more than one, so it is confirmed per address.