Foster City vs Gale Ranch, San Ramon
Foster City carries an effective property tax rate of 1.10% of assessed value and Gale Ranch, San Ramon carries 1.35%, both for fiscal year 2025-26. On one identical reference loan the monthly carrying costs are $9,760 and $10,086 — $327 apart, with Foster City lower. To Sunnyvale / Mountain View at AM peak the fastest published commutes are 30 min by car from Foster City and 50 min by car from Gale Ranch, San Ramon. Every figure is an objective public metric or arithmetic on one, and names its source.
Foster City (San Mateo County) · Gale Ranch, San Ramon (Contra Costa County)
| Metric | Foster City | Gale Ranch, San Ramon | Difference |
|---|---|---|---|
| Median $/sqft (SFR) | $1,000 | $700 | +$300 |
| Effective tax rate | 1.10% | 1.35% | −0.245% |
| Monthly cost, reference loan | $9,760 | $10,086 | −$327 |
| FiDi SF (Montgomery St BART) — BART | 58 min | 65 min | −7 min |
| FiDi SF (Montgomery St BART) — Drive | 45 min | 70 min | −25 min |
| Oakland City Center (12th St BART) — BART | 70 min | 45 min | +25 min |
| Oakland City Center (12th St BART) — Drive | 40 min | 45 min | −5 min |
| Sunnyvale / Mountain View (Sunnyvale Caltrain) — Drive | 30 min | 50 min | −20 min |
Difference is Foster City minus Gale Ranch, San Ramon. Sources are cited on each submarket page.
San Ramon (Gale Ranch) is the cheaper foot by $300, 30% below Foster City. What that buys is a different house, not a different bill: at $1,600,000 the two are $327 apart a month at 1.10% and 1.35%.
Square footage per dollar
$1.4M in Gale Ranch is a 2,400-2,800 sq ft four or five bedroom built 2000-2015 on a 4,500-6,000 sq ft lot. Against that, foster City comps run $950-$1,100 per square foot detached and $800-$900 for townhomes. At $1,000 and $700 per foot respectively, a fixed budget buys about 43% more floor area in San Ramon (Gale Ranch).
Carrying $1,600,000 in each
Holding the loan constant — $1,600,000, 20% down, 6.5% on a 30-year fixed, $2,400 of insurance, no HOA — Foster City totals $9,760 a month at 1.10% and San Ramon (Gale Ranch) $10,086 at 1.35% — tax lines of $1,469 and $1,796. Foster City townhome dues run $400-$600 a month. Gale Ranch HOA dues run $100-$220 a month depending on the village.
The trip each morning
To FiDi SF (Montgomery St BART): 45 minutes by driving from Foster City, 65 by BART from San Ramon (Gale Ranch) — a 20-minute edge to Foster City, or 3.3 hours across a ten-trip week. To Sunnyvale / Mountain View (Sunnyvale Caltrain): 30 minutes by driving from Foster City, 50 by driving from San Ramon (Gale Ranch) — a 20-minute edge to Foster City, or 3.3 hours across a ten-trip week. Foster City has no Caltrain; Hillsdale station is a 10-12 minute drive, then a 30-35 minute Baby Bullet. Door to door from Gale Ranch to FiDi runs 80-95 minutes.
Hazard and insurance
The entire city is engineered fill inside a levee, so flood, liquefaction and sea-level rise drive the disclosure. The developed San Ramon valley floor is not WUI. None of this substitutes for the parcel: check CAL FIRE zoning, the FEMA flood panel and CGS seismic hazard mapping, then price the policy in writing.
Choosing between them
Foster City answers work inside the city or on the mid-Peninsula. Gale Ranch only works with a $3K-plus CFD priced into the monthly payment. The decision is which requirement is load-bearing, because neither submarket satisfies both lists.
Sources. Rate and payment figures: San Mateo County Tax Rate Book FY 2025-26; Contra Costa TRA Book FY 2025-26; City of San Ramon CFD annual special tax reports, as composited in build/assets/metrics.json — unverified at tax-rate-area level, so read the bill. Minutes shown are AM-peak and door to door, from data/commute/static.csv. The per-foot medians are trailing and carry no appraisal weight; the neighborhood detail is first-hand broker observation.
Compare any two submarkets
| Metric | Foster City | Gale Ranch, San Ramon |
|---|---|---|
| Median $/sqft (SFR) | $1,000 | $700 |
| Effective tax rate | 1.10% | 1.35% |
| Monthly cost, reference loan | $9,760 | $10,086 |
| Fastest to FiDi SF (Montgomery St BART) | 45 min | 65 min |
| Fastest to Oakland City Center (12th St BART) | 40 min | 45 min |
| Fastest to Sunnyvale / Mountain View (Sunnyvale Caltrain) | 30 min | 50 min |
Same reference loan on both sides; the tax line is the only variable. Commute figures are door-to-door AM-peak estimates. Sources are listed on each submarket page.
Foster City detail
| Component | Rate of assessed value |
|---|---|
| Prop 13 general levy | 1.000% |
| County / city voter-approved bonds | 0.010% |
| School district measures | 0.092% |
| Effective rate | 1.10% |
| Mello-Roos / CFD | None recorded |
Source: San Mateo County Tax Rate Book FY 2025-26 (San Mateo County), composited in
build/assets/metrics.json.
Tax Rate Area not yet verified parcel-by-parcel — confirm the rate on the parcel’s own tax bill.
Gale Ranch, San Ramon detail
| Component | Rate of assessed value |
|---|---|
| Prop 13 general levy | 1.000% |
| County / city voter-approved bonds | 0.012% |
| School district measures | 0.055% |
| Mello-Roos / CFD assessment | 0.280% |
| Effective rate | 1.35% |
| Mello-Roos / CFD | Yes |
Source: Contra Costa TRA Book FY 2025-26; City of San Ramon CFD annual special tax reports (Contra Costa County), composited in
build/assets/metrics.json.
Tax Rate Area not yet verified parcel-by-parcel — confirm the rate on the parcel’s own tax bill.
Foster City vs Gale Ranch, San Ramon: questions and answers
- Which has the lower effective property tax rate, Foster City or Gale Ranch, San Ramon?
- Foster City, at 1.10% of assessed value against 1.35% for fiscal year 2025-26 — a gap of 0.250%. Rates are composited from county tax rate books; each parcel bill governs.
- How much do monthly carrying costs differ between Foster City and Gale Ranch, San Ramon?
- $327 per month on the identical reference loan: Foster City $9,760, Gale Ranch, San Ramon $10,086. Foster City is lower. Principal and interest are held constant, so the difference is the tax line. Arithmetic only.
- Which has the shorter commute to Sunnyvale / Mountain View, Foster City or Gale Ranch, San Ramon?
- Foster City. Foster City is 30 min by car; Gale Ranch, San Ramon is 50 min by car. Door-to-door, AM peak. Source: data/commute/static.csv.
- What is the price per square foot difference between Foster City and Gale Ranch, San Ramon?
- $300 per square foot: Foster City $1,000, Gale Ranch, San Ramon $700. Single-family medians, trailing twelve months. A median is not a valuation of any specific property.