Rockridge, Oakland vs Walnut Creek
Rockridge, Oakland carries an effective property tax rate of 1.36% of assessed value and Walnut Creek carries 1.08%, both for fiscal year 2025-26. On one identical reference loan the monthly carrying costs are $10,104 and $9,733 — $371 apart, with Walnut Creek lower. To Oakland City Center at AM peak the fastest published commutes are 12 min by BART from Rockridge, Oakland and 27 min by BART from Walnut Creek. Every figure is an objective public metric or arithmetic on one, and names its source.
Rockridge, Oakland (Alameda County) · Walnut Creek (Contra Costa County)
| Metric | Rockridge, Oakland | Walnut Creek | Difference |
|---|---|---|---|
| Median $/sqft (SFR) | $1,000 | $800 | +$200 |
| Effective tax rate | 1.36% | 1.08% | +0.278% |
| Monthly cost, reference loan | $10,104 | $9,733 | +$371 |
| FiDi SF (Montgomery St BART) — BART | 25 min | 45 min | −20 min |
| FiDi SF (Montgomery St BART) — Drive | 35 min | 55 min | −20 min |
| Oakland City Center (12th St BART) — BART | 12 min | 27 min | −15 min |
| Oakland City Center (12th St BART) — Drive | 15 min | 32 min | −17 min |
| Sunnyvale / Mountain View (Sunnyvale Caltrain) — Drive | 70 min | 62 min | +8 min |
Difference is Rockridge, Oakland minus Walnut Creek. Sources are cited on each submarket page.
On a matched $1,600,000 purchase the payment gap is $371, and it is entirely a tax gap: 1.36% in Rockridge, 1.08% in Walnut Creek. Price per foot, $1,000 against $800, is the second question.
Square footage per dollar
Rockridge comps run $900-$1,000 per square foot; Upper Rockridge runs $1,000-$1,150. Walnut Creek is one of the few places here where a pool comes with the four-bedroom at $1.4M. Posted medians are $1,000 per square foot in Rockridge and $800 in Walnut Creek, a $200 spread.
What the bill looks like
Modelled the same way in both ($1,600,000 purchase, 20% down, 6.5% fixed, $2,400 insurance, dues excluded), Rockridge totals $10,104 a month at 1.36% and Walnut Creek $9,733 at 1.08% — tax lines of $1,813 and $1,443. Oakland library, parks, paramedic and school parcel taxes stack $800-$1,500 a year on a Rockridge parcel. Rossmoor dues run $1,100-$1,500 a month including golf and services; downtown condos $400-$800. Neither figure includes dues or a district assessment, and both belong on the worksheet before an offer.
Getting to work
To FiDi SF (Montgomery St BART): 25 minutes by BART from Rockridge, 45 by BART from Walnut Creek — a 20-minute edge to Rockridge, or 3.3 hours across a ten-trip week. To Oakland City Center (12th St BART): 12 minutes by BART from Rockridge, 27 by BART from Walnut Creek — a 15-minute edge to Rockridge, or 2.5 hours across a ten-trip week. Highway 24 puts Rockridge 15 minutes from the Bay Bridge at 6 a.m. and 35-50 at 8. Walnut Creek BART is 30 minutes to Embarcadero; Pleasant Hill station serves the north side.
What the disclosure stack holds
Upper Rockridge above Broadway Terrace sits inside the 1991 Oakland Hills fire footprint and is mapped Very High. Homes backing Shell Ridge, Lime Ridge and the Mount Diablo foothills are mapped High fire hazard. Pull the parcel's own mapping — CAL FIRE severity zone, FEMA flood panel, CGS liquefaction zone — and get a written quote before the contingency date.
Which search this actually is
Rockridge suits a buyer who prefers a 1920s house to new construction. Walnut Creek fits a single-story four-bedroom requirement near a 30-minute BART ride. Write the requirement down before the search: these two answer different ones.
Sources. Rate and payment figures: Alameda County Tax Rates by TRA FY 2025-26; Contra Costa TRA Book FY 2025-26, 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 | Rockridge, Oakland | Walnut Creek |
|---|---|---|
| Median $/sqft (SFR) | $1,000 | $800 |
| Effective tax rate | 1.36% | 1.08% |
| Monthly cost, reference loan | $10,104 | $9,733 |
| Fastest to FiDi SF (Montgomery St BART) | 25 min | 45 min |
| Fastest to Oakland City Center (12th St BART) | 12 min | 27 min |
| Fastest to Sunnyvale / Mountain View (Sunnyvale Caltrain) | 70 min | 62 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.
Rockridge, Oakland detail
| Component | Rate of assessed value |
|---|---|
| Prop 13 general levy | 1.000% |
| County / city voter-approved bonds | 0.152% |
| School district measures | 0.208% |
| Effective rate | 1.36% |
| Mello-Roos / CFD | None recorded |
Source: Alameda County Tax Rates by TRA FY 2025-26 (Alameda 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.
Walnut Creek detail
| Component | Rate of assessed value |
|---|---|
| Prop 13 general levy | 1.000% |
| County / city voter-approved bonds | 0.012% |
| School district measures | 0.070% |
| Effective rate | 1.08% |
| Mello-Roos / CFD | None recorded |
Source: Contra Costa TRA Book FY 2025-26 (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.
Rockridge, Oakland vs Walnut Creek: questions and answers
- Which has the lower effective property tax rate, Rockridge, Oakland or Walnut Creek?
- Walnut Creek, at 1.08% of assessed value against 1.36% for fiscal year 2025-26 — a gap of 0.280%. Rates are composited from county tax rate books; each parcel bill governs.
- How much do monthly carrying costs differ between Rockridge, Oakland and Walnut Creek?
- $371 per month on the identical reference loan: Rockridge, Oakland $10,104, Walnut Creek $9,733. Walnut Creek 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, Rockridge, Oakland or Walnut Creek?
- Rockridge, Oakland. Rockridge, Oakland is 12 min by BART; Walnut Creek is 27 min by BART. Door-to-door, AM peak. Source: data/commute/static.csv.
- What is the price per square foot difference between Rockridge, Oakland and Walnut Creek?
- $200 per square foot: Rockridge, Oakland $1,000, Walnut Creek $800. Single-family medians, trailing twelve months. A median is not a valuation of any specific property.