Bay Area Real Estate Data

Cordelia, Fairfield vs Gale Ranch, San Ramon

Cordelia, Fairfield carries an effective property tax rate of 1.18% 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 $9,864 and $10,086 — $223 apart, with Cordelia, Fairfield lower. To Oakland City Center at AM peak the fastest published commutes are 60 min by car from Cordelia, Fairfield and 45 min by BART from Gale Ranch, San Ramon. Every figure is an objective public metric or arithmetic on one, and names its source.

Cordelia, Fairfield (Solano County) · Gale Ranch, San Ramon (Contra Costa County)

Side by side
Metric Cordelia, Fairfield Gale Ranch, San Ramon Difference
Median $/sqft (SFR)$380$700−$320
Effective tax rate1.18%1.35%−0.167%
Monthly cost, reference loan$9,864$10,086−$223
FiDi SF (Montgomery St BART) — BART85 min65 min+20 min
FiDi SF (Montgomery St BART) — Drive75 min70 min+5 min
Oakland City Center (12th St BART) — BART70 min45 min+25 min
Oakland City Center (12th St BART) — Drive60 min45 min+15 min
Sunnyvale / Mountain View (Sunnyvale Caltrain) — Drive95 min50 min+45 min

Difference is Cordelia, Fairfield minus Gale Ranch, San Ramon. Sources are cited on each submarket page.

Put the two side by side and the gap is square footage, not tax: $380 per foot in Fairfield (Cordelia) against $700 in San Ramon (Gale Ranch). On the same $1,600,000 purchase the monthly separation is $223, because Fairfield (Cordelia) bills 1.18% and San Ramon (Gale Ranch) 1.35%.

The house at each price

The Cordelia sweet spot is $700K-$900K for 2,200-2,800 sq ft built 1995-2010. $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. At $380 and $700 per foot respectively, a fixed budget buys about 84% more floor area in Fairfield (Cordelia).

The monthly, matched

Modelled the same way in both ($1,600,000 purchase, 20% down, 6.5% fixed, $2,400 insurance, dues excluded), Fairfield (Cordelia) totals $9,864 a month at 1.18% and San Ramon (Gale Ranch) $10,086 at 1.35% — tax lines of $1,573 and $1,796. The Cordelia Fire District assessment shows as a separate line on the bill. The San Ramon CFD pushes the all-in rate to 1.4-1.6 percent, with most districts running through the 2030s.

The trip each morning

To Sunnyvale / Mountain View (Sunnyvale Caltrain): 95 minutes by driving from Fairfield (Cordelia), 50 by driving from San Ramon (Gale Ranch) — a 45-minute edge to San Ramon (Gale Ranch), or 7.5 hours across a ten-trip week. Cordelia to the Bay Bridge is 50 minutes at 5:30 a.m. and 75-100 minutes at 7:30. San Ramon has no BART; Dublin/Pleasanton is 12-15 minutes south, then 48-52 minutes to Embarcadero.

What the disclosure stack holds

The 2020 LNU Lightning Complex burned to the edge of Cordelia's developed area. Calaveras Fault distance is the other San Ramon disclosure item. 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.

Which search this actually is

Cordelia answers a Napa or Travis commute. Gale Ranch is the Tri-Valley answer when square footage and build year both matter.


Sources. Effective rates and carrying costs: Solano County Tax Rate Book FY 2025-26; City of Fairfield CFD reports; Contra Costa TRA Book FY 2025-26; City of San Ramon CFD annual special tax reports, composited in build/assets/metrics.json; TRA-level verification pending, so confirm the rate on the parcel's own bill. Commute times: door-to-door AM-peak estimates, data/commute/static.csv. Median price per foot is a trailing figure, not a valuation, and the local detail comes from the broker's own transactions.

Compare any two submarkets

MetricCordelia, FairfieldGale Ranch, San Ramon
Median $/sqft (SFR)$380$700
Effective tax rate1.18%1.35%
Monthly cost, reference loan$9,864$10,086
Fastest to FiDi SF (Montgomery St BART)75 min65 min
Fastest to Oakland City Center (12th St BART)60 min45 min
Fastest to Sunnyvale / Mountain View (Sunnyvale Caltrain)95 min50 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.

Cordelia, Fairfield detail

Property tax rate — FY 2025-26
ComponentRate of assessed value
Prop 13 general levy1.000%
County / city voter-approved bonds0.010%
School district measures0.090%
Mello-Roos / CFD assessment0.080%
Effective rate1.18%
Mello-Roos / CFD Yes

Source: Solano County Tax Rate Book FY 2025-26; City of Fairfield CFD reports (Solano 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.

FiDi SF (Montgomery St BART) — Drive75BART85Ferry95Oakland City Center (12th St BART) — Drive60BART70Sunnyvale / Mountain View (Sunnyvale Caltrain) — Drive95
Cordelia, Fairfield door-to-door commute, AM peak, in minutes. Rail and ferry in blue, driving in grey. Source: data/commute/static.csv.

Gale Ranch, San Ramon detail

Property tax rate — FY 2025-26
ComponentRate of assessed value
Prop 13 general levy1.000%
County / city voter-approved bonds0.012%
School district measures0.055%
Mello-Roos / CFD assessment0.280%
Effective rate1.35%
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.

FiDi SF (Montgomery St BART) — BART65Drive70Oakland City Center (12th St BART) — BART45Drive45Sunnyvale / Mountain View (Sunnyvale Caltrain) — Drive50
Gale Ranch, San Ramon door-to-door commute, AM peak, in minutes. Rail and ferry in blue, driving in grey. Source: data/commute/static.csv.

Cordelia, Fairfield vs Gale Ranch, San Ramon: questions and answers

Which has the lower effective property tax rate, Cordelia, Fairfield or Gale Ranch, San Ramon?
Cordelia, Fairfield, at 1.18% of assessed value against 1.35% for fiscal year 2025-26 — a gap of 0.170%. Rates are composited from county tax rate books; each parcel bill governs.
How much do monthly carrying costs differ between Cordelia, Fairfield and Gale Ranch, San Ramon?
$223 per month on the identical reference loan: Cordelia, Fairfield $9,864, Gale Ranch, San Ramon $10,086. Cordelia, Fairfield is lower. Principal and interest are held constant, so the difference is the tax line. Arithmetic only.
Which has the shorter commute to Oakland City Center, Cordelia, Fairfield or Gale Ranch, San Ramon?
Gale Ranch, San Ramon. Cordelia, Fairfield is 60 min by car; Gale Ranch, San Ramon is 45 min by BART. Door-to-door, AM peak. Source: data/commute/static.csv.
What is the price per square foot difference between Cordelia, Fairfield and Gale Ranch, San Ramon?
$320 per square foot: Cordelia, Fairfield $380, Gale Ranch, San Ramon $700. Single-family medians, trailing twelve months. A median is not a valuation of any specific property.

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