The New Avenue blog

More than decade of content on the things we love: your home

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Property tax increase when adding a one-bedroom, one-bathroom ADU with kitchen in Oakland

When you add an accessory dwelling, you’ll see a tax increase equal to one-half of one percent of the total project cost. For this type of project, that means a tax increase of $1,500 to $2,000 per year. Considering the amount the family is saving per month on housing for the owner’s parents, this amount of tax increase is no problem. Should the family rent the ADU out in the future, they’ll be able to get $2500 to $3000 per month in rent. That’s enough to pay for the ADU and the tax increase, leaving plenty of rental income left over for the homeowner’s needs.

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How much do property taxes increase when building an ADU in El Cerrito, CA?

That tax increase breaks down to just $104.16 per month. That’s easily covered by the monthly rental income. The ADU will easily rent for $2,000 per month or more, leaving enough money to pay off the mortgage on the ADU in just a few short years. After that, the rent money is available for the homeowner to use for her main home, education, travel or anything else she may want.

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Will I have to pay more property taxes if I add an accessory dwelling in Santa Cruz?

A one-bedroom accessory dwelling like this one costs around $400,000 including design, permitting, all site work/engineering, and construction. When adding a “granny flat” or accessory dwelling of this size in Santa Cruz, you’ll a tax increase equal to about one-half of one percent of the full cost of the project. Here’s what that means for this property in Santa Cruz.

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What is the increase in property taxes when building an accessory dwelling unit in San Bruno?

Considering the amount of money the family will save by building the ADU, the tax increase is quite small. If they move their grandparents into the unit, they’ll save at least $24,000 per year on housing. If they use the space for the immediate household, they’ll save by not moving to a larger, more expensive home (and they’ll get to stay in the neighborhood they love).

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Increase in property taxes when adding a second home in San Pablo, California

The owner wants to remodel the small, one-bedroom home on his property. Eventually, he will add a larger home and turn the existing house into an accessory dwelling.

The remodel will cost $138,000, and the new home will cost $500,000.

Here’s how property taxes increase when adding the new home.

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How much will my property taxes increase if I build a second-story addition in California?

When adding an addition or building an accessory dwelling, your property taxes will go up. In general, we expect an increase of one-half of one percent of the total cost of the project. In this case, the family will see a tax increase of $2,625 per year. The total cost of a project like this is $525,000. That includes everything: design, permitting, engineering, all the red tape, site work, and construction.

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