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3913 Castro Valley Blvd #6
B- Composite 65.45
Why this score? — see what drove the B- grade

The composite is a weighted blend of 9 inputs, each scored 0–100. Each bar is that input's sub-score; the figure is the points it added to the 100-point composite (weight × sub-score).

  • Cash flow +30.0/30.0
  • 1% rule +10.0/10.0
  • DSCR +10.0/10.0
  • Schools +5.9/10.0
  • Livability +3.7/5.0
  • Rent growth +3.3/5.0
  • Condition / age +2.5/5.0
  • ARV discount +0.0/15.0
  • Appreciation +0.0/10.0

$74,500

3913 Castro Valley Blvd #6 · Castro Valley, CA 94546
1 bd · 1.0 ba · 552 sqft · Manufactured · 16 Days on market
Est $60k · 24% over

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Listing remarks MLS

THIS ONE BEDROOM SINGLE WIDE HOME HAS BEEN METICULOUSLY MAINTAINED HAS NEW EXTERIOR PAINT WITH TWO STORAGE SHEDS. AIR COOLED.

Key facts

  • Listed 16 days

Neighborhood map

Property Rental comp Retail Transit Schools Stadiums Fortune 500 · Circle radius: 3.0 mi
Loading POIs…

What this means for you Summary

Snapshot

  • This is a 1-bed/1.0-bath manufactured listed at $74k.

Deal economics

  • At list price, monthly cash flow is $1k ($14k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($2k rent vs $74k).
  • Recommended offer: $73k (1.5% below list) — sets the bar for market timing.
  • Cap rate 25.3% vs local median 1.8% in Castro Valley — top-decile yield for the area; either an underpriced asset or a hidden risk that comps aren't pricing in. Stress-test before assuming the spread holds.

Location & tenants

  • Location reads 74/100 on livability (#129 in CA, #4,461 nationally) — a middle-class / working-renter tenant base. Strengths: commute A+, employment A+, schools A; Watch: amenities F, cost of living F.
  • Castro Valley Unified (suburban): math 60% / reading 69% proficiency, ranked #60 of 517 in CA (top 12%) — acceptable for families but not a draw, mixed tenant base, ~2y average lease; only 16% free/reduced lunch — higher-income household profile.
  • Market conditions: Rents rising (+3.4%/yr); 108 active listings in the ZIP; 24 comparable units currently listed for rent nearby; rentals at typical pace (median 15d on market — plan ~3-4 weeks tenant-placement turnaround); high-income renter base; 1,742 units permitted in Alameda County in 2024 (856 in 5+ unit buildings).

Forward outlook

  • Local home prices are declining (-3.0%/yr); year-one equity from $515 of loan paydown is wiped out by about $2k of value loss. Plan a longer hold.
  • Alameda County population projected at +34% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
  • At projected returns (-3.0% appreciation + 3.4% rent growth), your $21k cash investment doubles in ~2 years — after that, you're playing with house money.

Negotiation context

  • It's been on market 16 days — a 2% lower offer ($73k) is reasonable based on typical stale-listing flexibility.
  • 2 sale attempts since 23y ago with the ask held roughly flat each time — persistent listings suggest the price (not the market) is what's stuck; bring a comps-based counter.
  • Current owner paid $30k; list at $74k implies a 148% gain — meaningful room to come down on a strong offer.
Recommended offer $73,382 (1.5% below list)

Questions for the listing agent

  1. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  2. Schools are A-rated — typically a magnet for longer-tenancy family renters. What's the average tenant stay here, and is there a school-zone premium baked into asking?
  3. What's the average days-on-market for RENTAL listings here right now (not sales)? A rising rental-DOM trend means longer vacancies and softer asking-rent achievability than the comps imply.
  4. What's the recent tenant-quality profile in this submarket — average credit score on applications, eviction rate, late-payment / NSF rate, and stable-employment percentage? A property-management company in the area should have these aggregated.
  5. How much new for-sale + rental construction is in the pipeline within 1–3 miles? Heavy new supply typically softens prices + rents 12–24 months out; constrained supply supports both.

Investment metrics

1% rule
2.88%
Cap rate
25.31%
Cash-on-cash
67.93%
DSCR
4.02
GRM
2.9

CMA / ARV

ARV (on-the-fly)
$60,168
Comps found
6
Show comp detail 6 sales within ~0.75 mi
Address Dist Beds/Ba Sqft Sold Price $/sf Match
3913 Castro Valley Blvd #6 0.00mi 1/1.0 552 (0%) 1mo $74,000 $134 99
3913 Castro Valley Blvd #78 0.00mi 2/1.0 (+1) 552 (0%) 15mo $85,000 $154 82
3913 Castro Valley Blvd #5 0.00mi 1/1.0 540 (-2%) 19mo $59,000 $109 80
3998 Castro Valley Blvd #19 0.17mi 1/1.0 576 (+4%) 10mo $40,000 $69 76
3998 Castro Valley Blvd Spc 6 0.17mi 1/1.0 588 (+6%) 15mo $30,000 $51 69
3998 Castro Valley Blvd #16 0.19mi 1/1.0 600 (+9%) 16mo $18,754 $31 64

Match score weights: distance 35% · size 25% · config 20% · recency 20%. Top-matched comps best support the ARV.

Projected returns pro-forma

-3.0% appreciation · 3.37% rent growth · sell at horizon

5-year hold
IRR
67.7%
Equity multiple
4.07×
Total profit
$63,976
Equity at exit
$11,108
10-year hold
IRR
72.0%
Equity multiple
8.48×
Total profit
$156,006
Equity at exit
$6,441

Cash invested: $20,860 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (STATE)
18 Strongly Tenant-Friendly
State California
18 Strongly Tenant-Friendly · D+13
County
— inherits STATE
City
— inherits STATE
AB1482 statewide rent cap (10% + CPI). Cities (SF/LA/Berkeley) layer stricter rules. Just-cause statewide.

ZIP-level market 94546

Rents YoY
3.4%
Active inventory
108
Price-to-rent
2.9×

Monthly cashflow live

Estimated rent
$2,147 high interval (Pro) →
Mortgage (P&I)
$391
Tax est. 1.5%
$93 /mo · $1,118/yr
Insurance
$31
HOA
$0
Vacancy / Maint / Mgmt
$451
Net cashflow
$1,181

Break-even live

Break-even rent $652
Max offer price $74,500
Occupancy floor 40%

UW: 25.0% down · 7.5% · 30yr · 1.5% tax · 5.0% vac · 8.0% maint · 8.0% mgmt

Financing live

Cash to close

Down payment
$18,625
Closing costs
$2,235
Reserves months
Total cash needed

Loan-product check · same deal, 3 products live

Conventional

25% down · 7.5% · 30yr

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Personal DTI + credit; lowest rate.

DSCR

20% down · 8.5% · 30yr

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

No personal income docs; deal must DSCR.

Hard money

10% down · 12.0% · 12mo

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Short-term bridge; refi at stabilization.

Rent comps 24 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
3958 Castro Valley Blvd Castro Valley, CA 2.0 1.0 750 $2,150 $2.87 43d 1 0.10mi
20673 Forest Ave Unit B Castro Valley, CA 2.0 1.0 750 $2,750 $3.67 4d 1 0.21mi
20446 Forest Ave Apt 22 Castro Valley, CA 1.0 400 $1,625 $4.06 24d 1 0.28mi
20446 Forest Ave Apt 2 Castro Valley, CA 1.0 400 $1,625 $4.06 1d 1 0.28mi
20446 Forest Ave Apt 1 Castro Valley, CA 1.0 400 $1,625 $4.06 18d 1 0.28mi
22160 Center St Castro Valley, CA 1.0–2.0 1.0–2.0 863 $2,307 $2.67 4d 6 0.39mi
22302 Center St Castro Valley, CA 1.0–2.0 1.0 809 $2,213 $2.74 1d 3 0.49mi
20928 Wilbeam Ave Unit 46 Castro Valley, CA 1.0 1.0 675 $1,895 $2.81 43d 1 0.50mi
2481 Grove Way Castro Valley, CA 1.0 1.0 707 $2,095 $2.96 3d 1 0.64mi
21006 Nunes Ave Unit A Castro Valley, CA 2.0 1.0 750 $2,600 $3.47 15d 1 0.81mi
20511 Anita Ave Apt 32 Castro Valley, CA 1.0 1.0 525 $1,965 $3.74 21d 1 0.94mi
22294 City Center Dr Hayward, CA 2.0 1.0–2.0 1016 $2,169 $2.13 12d 1 1.15mi
1327 Russell Way Hayward, CA 2.0 1.0 700 $2,295 $3.28 24d 1 1.19mi
20353 Park Way Castro Valley, CA 1.0 1.0 561 $2,145 $3.82 5d 3 1.22mi
19139 Vaughn Ave Castro Valley, CA 2.0 2.0 745 $3,995 $5.36 11d 1 1.27mi
22525 3rd St Hayward, CA 1.0–2.0 1.0–2.0 779 $2,110 $2.71 1d 8 1.27mi
19972 Stanton Ave Castro Valley, CA 1.0–2.0 1.0 710 $1,895 $2.67 5d 2 1.35mi
19770 Sprague Ct Castro Valley, CA 1.0 1.0 700 $2,700 $3.86 43d 1 1.37mi
1201 B St Unit 18 Hayward, CA 1.0 1.0 645 $1,995 $3.09 5d 1 1.40mi
1201 B St Apt 25 Hayward, CA 1.0 1.0 645 $1,998 $3.10 43d 1 1.40mi
22335 Foothill Blvd Hayward, CA 3.0 1.0–2.0 1160 $3,132 $2.70 1d 42 1.40mi
1321 Terrace Ave Hayward, CA 1.0 1.0 750 $2,050 $2.73 43d 1 1.40mi
21701 Foothill Blvd Hayward, CA 1.0–2.0 1.0–2.0 751 $2,199 $2.93 17d 6 1.46mi
1250 E St Hayward, CA 1.0 1.0 400 $1,795 $4.49 43d 1 1.47mi

Listing history 4 events

  1. 2026-04-16
    status Pending
  2. 2026-03-31
    listed $74,500 Active
  3. 2003-06-23
    soldstatus $30,000 125-char remark
    Show marketing remark (125 chars)

    THIS ONE BEDROOM SINGLE WIDE HOME HAS BEEN METICULOUSLY MAINTAINED HAS NEW EXTERIOR PAINT WITH TWO STORAGE SHEDS. AIR COOLED.

  4. 2003-04-22
    listed $35,000 125-char remark
    Show marketing remark (125 chars)

    THIS ONE BEDROOM SINGLE WIDE HOME HAS BEEN METICULOUSLY MAINTAINED HAS NEW EXTERIOR PAINT WITH TWO STORAGE SHEDS. AIR COOLED.

ⓘ Source: listings_history table (triggers on properties + properties_extension) + one-shot backfill from property_details.listing_events for pre-trigger history.

Climate risk First Street

  • 🌊 Flood 1/10 Low FEMA zone X (unshaded) · 0% chance over 30 yrs
  • 🔥 Wildfire 2/10 Low
  • 🌡 Heat 4/10 Moderate 7 d/yr ≥88°F today · 14 d/yr by 30 yrs out
  • 💨 Wind 1/10 Low
  • 🫁 Air quality 7/10 Severe 12 unhealthy d/yr today · 12 by 30 yrs out

Nearby sold comps map

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Walkable amenities ~0.75 mi

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Taxation est. · year 1

Rental income
$25,759
− Mortgage interest
−$4,173
− Property taxes
−$1,118
− Insurance
−$372
− Repairs & maintenance
−$2,061
− Management
−$2,061
− Depreciation
−$2,167
Taxable income
$13,807
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$3,314
After-tax cash flow
$10,857/yr

For passive investors: Depreciation is non-cash, so a rental often shows a tax loss while cash-flowing — sheltering income. Rental losses are passive: they offset passive income freely, and up to $25,000/yr can offset ordinary (W-2) income if you actively participate and your MAGI is under $100k (phasing out to $0 by $150k); unused losses carry forward. On sale, claimed depreciation is recaptured at up to 25%, and gains may owe capital-gains tax (a 1031 exchange can defer both). Figures are a year-1 estimate at your 24.0% rate — not tax advice; consult a CPA.

Schools (NCES district)

District
Castro Valley Unified
NCES district ID
0607800
Math proficiency
60% ▼ -3.00%
Reading proficiency
69% ▲ 1.00%
Median HH income
$94,532
Composite
59.03/100
National rank
#959
State rank
#60 of 517 in CA

Livability — Castro Valley

Score
74/100
State rank
#129
US rank
#4461

Category grades

Amenities F Commute A+ Cost of living F Crime B+ Employment A+ Housing B- Health & safety B+ User ratings B

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Castro Valley, CA
County
Alameda County · 1,614,355 people
City population
59,361
Metro
San Francisco-Oakland-Berkeley, CA
Population (ZIP)
44,855
Household income
$128,385
Rent vs Own
33.7% rent · 66.3% own
Severe rent burden
1354.0

Population outlook (Alameda County) Hauer SSP2

Today (2025)
1,928,884 people
By 2030
2,069,146 · +7.3%
By 2040
2,338,405 · +21.2%
By 2050
2,586,608 · +34.1%
By 2075
3,061,911 · +58.7%
By 2100
3,234,133 · +67.7%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Highly diverse neighborhood (Simpson 0.73)
Race & ethnicity
White 36% Asian 31% Hispanic / Latino 20% Two or more races 13% Black 8% Native American 1%
Hispanic origin (detail)
Mexican 13%
Common ancestry
Russian 3% Lithuanian 2% Slovak 2%
Foreign-born
28% · China, Canada, Vietnam
Languages at home
61% English-only · Chinese 14% Spanish 10% Other Indo-European 3%

Political lean MEDSL · Alameda

2024 margin
Solid D (+53.6) · D 74.6% · R 21.0% · Other 4.4%
2008→2024 swing
-5.9pp toward R · 2008: 59.5pp · 2024: 53.6pp
All cycles
2024: D+53.6 2020: D+62.5 2016: D+64.4 2012: D+59.8 2008: D+59.5

Not yet ingested

Civics

Market trends

HPI YoY
▼ -934.25%
Current HPI
334.4167
Rent YoY
▲ 3.37%
Metro
San Francisco-Oakland-Berkeley, CA
State GDP YoY
▲ 3.21%
F500 in state
116

Industry mix (Fortune 500 HQ in CA)

Industry F500 HQs Revenue

Price history

+112.9% since first listed
4 events — show timeline
  • 2026-04-16 Pending bridgeMLS, Bay East AOR, or Contra Costa AOR
  • 2026-03-31 Listed $74,500 bridgeMLS, Bay East AOR, or Contra Costa AOR
  • 2003-06-23 Sold (MLS) $30,000 bridgeMLS, Bay East AOR, or Contra Costa AOR
  • 2003-04-22 Listed $35,000 bridgeMLS, Bay East AOR, or Contra Costa AOR

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

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