Cost to Own
United StatesCaliforniaMarin CountyTamalpais-Homestead Valley Population 12,153 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Tamalpais-Homestead Valley, California

A $1,811,000 home here costs

$12,300

per month, all in — with 20% down at today's 6.66% 30-year fixed rate.

A standard mortgage calculator would have told you $9,310. The real number is $2,990 higher every month — 32% more than the payment most buyers budget for.

Tamalpais-Homestead Valley median: $1,811,100
Under 20% adds PMI
Freddie Mac PMMS
US average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $1,448,800 borrowed $9,310
Property tax0.552% effective rate for Tamalpais-Homestead Valley itself $833
Homeowners insuranceCalifornia averages $1,403/yr (NAIC), or 0.186% of home value $281
Electricity33.25¢/kWh — California residential average, EIA $299
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $1,509
Total monthly $12,300

Tamalpais-Homestead Valley against Marin County and California

MeasureTamalpais-Homestead ValleyMarin County
Median home value$1,811,100$1,390,000
Median property tax$10,001$10,001
Effective tax rate0.552%0.719%
Median gross rent$2,990$2,584
Population12,153258,765

The weather behind that power bill

Tamalpais-Homestead Valley sits in Marin County, which averages a high of 81.3°F in its hottest month and a low of 42.1°F in its coldest, with 34.45" of precipitation a year and 64% of it in a single three-month stretch. That climate drives 486 cooling and 2,481 heating degree days, which is what sets the $299 electricity line above.

See the full climate breakdown for Marin County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Marin County

Full Marin County cost breakdown · Every county in California

Common questions

How much does it cost to own a home in Tamalpais-Homestead Valley?

A $1,811,000 home in Tamalpais-Homestead Valley, California costs approximately $12,300 per month with 20% down at 6.66%. That is $9,310 principal and interest, $833 property tax, $281 homeowners insurance, $367 utilities and $1,509 set aside for maintenance.

What is the property tax rate in Tamalpais-Homestead Valley?

Tamalpais-Homestead Valley has an effective property tax rate of 0.552%, based on a median home value of $1,811,100 and median real estate taxes of $10,001. That is lower than the Marin County average of 0.719%.

What is the average home price in Tamalpais-Homestead Valley?

The median owner-occupied home value in Tamalpais-Homestead Valley, California is $1,811,100, against $1,390,000 across Marin County.

Is it cheaper to rent or buy in Tamalpais-Homestead Valley?

Median gross rent in Tamalpais-Homestead Valley is $2,990 a month, against $12,300 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Tamalpais-Homestead Valley — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for California.
  • Electricity price — EIA Electric Power Monthly Table 5.6.A.
  • Mortgage rate — Freddie Mac PMMS, refreshed weekly.
  • Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.

Full methodology