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530 Columbia Ave 6-Plex
B+ Composite 77.29
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 +29.7/30.0
  • DSCR +10.0/10.0
  • Schools +8.3/10.0
  • ARV discount +7.5/15.0
  • 1% rule +7.1/10.0
  • Appreciation +4.1/10.0
  • Livability +4.1/5.0
  • Rent growth +4.0/5.0
  • Condition / age +2.5/5.0

$2,080,000

530 Columbia Ave · Sunnyvale, CA 94085
54 bd · 42.0 ba · 4,101 sqft · MultiFamily public records · 45 Days on market
Built 1961 8,646 sqft lot

🖨 Deal sheet (PDF) 📄 Offer letter ✓ Due diligence

Multi-family units

County records classify this as Multi-Family (5+ Unit). Listing-text estimate: 6 units. confirmed

5+ unit building — per-unit beds/baths from public records are typically unavailable; the breakdown below (if shown) is an estimate from the listing text.

Listing remarks MLS

530 Columbia Ave is a well-positioned, 6-unit apartment property built in 1961. This asset offers a versatile and highly desirable unit mix, anchored by a spacious three-bedroom, two-bathroom single story owners unit that includes a private two-car attached garage perfect for an owner-occupant or a premium rental. Can be purchased together or separately with the 9 unit apartment property located at 215 Charles St. in Sunnyvale. Also listed on MLS# ML82046338

Key facts

  • 8,646 sq ft lot
  • 2 garage spots
  • Built 1961

Property features AI

Finance

  • Other: Landscape expense approximately $1,200; Trash expense approximately $5,311; Utility expenses approximately $10,624
  • Financial info: Complex contains at least 6 units; Annual rental income approximately $130,356; Annual gross income approximately $127,265; Gross scheduled income approximately $131,201; Other income approximately $845; Total expenses approximately $57,737; Other expenses approximately $1,537; Vacancy factor: 3%; Gross rent multiplier: 15.85; Individual unit rents: 3-bed $2,780; 2-bed $1,506; 1-bed $1,277
  • HOA & community: No HOA information provided

Exterior

  • Parking: Attached garage; Carport; Covered parking; Off-street parking and on-street parking; Parking area with tandem parking; Two garage spaces plus two-car carport (minimum); One additional parking space
  • Security: No security features provided
  • Utilities: Public water; Sewer: public; Individual electric and gas meters; Primary water meter and separate electric and gas meters; Public utilities
  • Home design: Individual ownership; Zoned R3
  • Construction: Concrete perimeter foundation; Single building
  • Exterior features: Composition/shingle roof; Cable TV and satellite dish available; Tenants pay utilities for electric, gas, and heating

Interior

  • Kitchen: No kitchen appliance details provided
  • Bedrooms: One 3-bedroom unit; One 2-bedroom unit; Four 1-bedroom units
  • Flooring: Carpet; Laminate; Tile; Vinyl/Linoleum
  • Bathrooms: One unit with 2 full bathrooms; One unit with 1 full bathroom; Four units with 1 full bathroom each
  • Heating & cooling: Gas heating and wall furnaces; Ceiling fans and window/wall cooling units
  • Interior features: Carpet, laminate, tile, and vinyl/linoleum flooring
  • Laundry & utility: No laundry appliance details provided

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 6 × 9-bed/7.0-bath units multifamily listed at $2.08M.

Deal economics

  • At list price, monthly cash flow is $8k ($91k/yr) — positive. Per door: $1k/mo.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($25k rent vs $2.08M).
  • Recommended offer: $2.02M (3.0% below list) — sets the bar for market timing.
  • Cap rate 10.7% vs local median 1.2% in Sunnyvale — 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 82/100 on livability (#37 in CA, #1,258 nationally) — a professional / high-income tenant draw. Strengths: amenities A+, commute A+, employment A+; Watch: cost of living F.
  • Fremont Union High (urban): math 87% / reading 91% proficiency, ranked #6 of 517 in CA (top 1%) — strong family-tenant draw, lease renewals of 3-5y typical.
  • Zoned schools: Fremont High (math 67% / reading 82%, grade B+, #78 of 1,170 statewide, top 7%, 2,171 students, 23% FRL).
  • Zoned-school proficiency averages 74% at this address vs 89% district-wide (-14 pts) — the specific schools serving this property underperform the Fremont Union High average; the district grade overstates school quality for this exact location.
  • Market conditions: Rents rising fast (+6.2%/yr); 45 active listings in the ZIP; high-income renter base; 3,838 units permitted in Santa Clara County in 2024 (1,886 in 5+ unit buildings).
  • At $25,195/mo this rent would consume 157% of the median local household income ($192k/yr) (locally 585% of renters already pay >50% of income on rent) — very limited rent-growth headroom before tenants either downsize or default.

Forward outlook

  • Local home prices are declining (-1.9%/yr); year-one equity from $14k of loan paydown is wiped out by about $39k of value loss. Plan a longer hold.
  • Santa Clara County population projected at +24% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
  • At projected returns (-1.9% appreciation + 6.2% rent growth), your $582k cash investment doubles in ~6 years — after that, you're playing with house money.

Negotiation context

  • It's been on market 45 days — a 3% lower offer ($2.02M) is reasonable based on typical stale-listing flexibility.
  • 2 sale attempts 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.
Recommended offer $2,017,600 (3.0% below list)

Questions for the listing agent

  1. It's been on market 45 days. Have you received any prior offers? Is the seller open to a 3% concession, seller financing, or rate buy-down credit?
  2. Can we see the unit-by-unit rent roll, current vacancy, and any below-market leases? What's the average tenancy length?
  3. What capital expenditures (roof, boiler, parking lot, exteriors) have been made in the last 5 years, and what's planned in the next 2?
  4. Built in 1961 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  5. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  6. Schools are B-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?
  7. 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.
  8. 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.
  9. How much new apartment / multifamily construction is in the pipeline within 1–3 miles? Heavy new supply (>2% of stock underway) typically softens rents 12–24 months out; light construction supports rent growth.

Investment metrics

1% rule
1.21%
Cap rate
10.66%
Cash-on-cash
15.59%
DSCR
1.69
GRM
6.9

CMA / ARV

No comps found within radius.

Projected returns pro-forma

-1.85% appreciation · 6.17% rent growth · sell at horizon

5-year hold
IRR
12.8%
Equity multiple
1.56×
Total profit
$328,774
Equity at exit
$418,383
10-year hold
IRR
22.0%
Equity multiple
3.33×
Total profit
$1,358,024
Equity at exit
$371,386

Cash invested: $582,400 (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 94085

Home prices YoY
-0.5%
Rents YoY
6.2%
Active inventory
45
Price-to-rent
41.3×

Monthly cashflow live

Estimated rent
$25,195 medium interval (Pro) →
Mortgage (P&I)
$10,908
Tax from tax record
$561 /mo · $6,735/yr
Insurance
$867
HOA
$0
Vacancy / Maint / Mgmt
$5,291
Net cashflow
$7,568

Break-even live

Break-even rent $15,615
Max offer price $2,080,000
Occupancy floor 65%

Sensitivity live

Price -10% $8,746 -5% $8,157 +0% $7,568 +5% $6,980 +10% $6,391
Rent -10% $5,578 -5% $6,573 +0% $7,568 +5% $8,564 +10% $9,559
Rate -1.0pp $8,616 -0.5pp $8,097 base $7,568 +0.5pp $7,029 +1.0pp $6,481

6-unit breakdown (identical units grouped — click to expand)

UnitsBedsBathsEst. rent
Total (6 units) $25,195

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
$520,000
Closing costs
$62,400
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.

Listing history 16 events

  1. 2026-06-21
    days on market $2,080,000 Active 45 DOM
  2. 2026-06-18
    days on market $2,080,000 Active 42 DOM
  3. 2026-06-17
    days on market $2,080,000 Active 41 DOM
  4. 2026-06-16
    days on market $2,080,000 Active 40 DOM
  5. 2026-06-15
    days on market $2,080,000 Active 39 DOM
  6. 2026-06-13
    days on market $2,080,000 Active 37 DOM
  7. 2026-06-09
    days on market $2,080,000 Active 33 DOM
  8. 2026-06-08
    days on market $2,080,000 Active 32 DOM
  9. 2026-06-07
    days on market $2,080,000 Active 31 DOM
  10. 2026-06-05
    days on market $2,080,000 Active 28 DOM
  11. 2026-06-03
    days on market $2,080,000 Active 27 DOM
  12. 2026-06-02
    days on market $2,080,000 Active 26 DOM
  13. 2026-06-01
    days on market $2,080,000 Active 25 DOM
  14. 2026-05-31
    days on market $2,080,000 Active 24 DOM
  15. 2026-05-08
    listed $2,080,000 Active 462-char remark
    Show marketing remark (462 chars)

    530 Columbia Ave is a well-positioned, 6-unit apartment property built in 1961. This asset offers a versatile and highly desirable unit mix, anchored by a spacious three-bedroom, two-bathroom single story owners unit that includes a private two-car attached garage perfect for an owner-occupant or a premium rental. Can be purchased together or separately with the 9 unit apartment property located at 215 Charles St. in Sunnyvale. Also listed on MLS# ML82046338

  16. 2026-05-08
    listed $2,080,000 Active 462-char remark
    Show marketing remark (462 chars)

    530 Columbia Ave is a well-positioned, 6-unit apartment property built in 1961. This asset offers a versatile and highly desirable unit mix, anchored by a spacious three-bedroom, two-bathroom single story owners unit that includes a private two-car attached garage perfect for an owner-occupant or a premium rental. Can be purchased together or separately with the 9 unit apartment property located at 215 Charles St. in Sunnyvale. Also listed on MLS# ML82046338

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

Tax reassessment forecast CA · Resets to sale price

Current annual tax
$6,735 · $561/mo
Projected year-2 tax
$15,808 · $1,317/mo
Expected delta
+$9,073/yr (+$756/mo · 134.7%)

ⓘ Screening estimate from a state-policy table — verify with the county assessor before closing.

Climate risk First Street

  • 🌊 Flood 3/10 Moderate FEMA zone X · 20% chance over 30 yrs
  • 🔥 Wildfire 1/10 Low
  • 🌡 Heat 4/10 Moderate 7 d/yr ≥92°F today · 15 d/yr by 30 yrs out
  • 💨 Wind 1/10 Low
  • 🫁 Air quality 7/10 Severe 13 unhealthy d/yr today · 13 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
$302,340
− Mortgage interest
−$116,512
− Property taxes
−$6,735
− Insurance
−$10,400
− Repairs & maintenance
−$24,187
− Management
−$24,187
− Depreciation
−$60,509
Taxable income
$59,809
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$14,354
After-tax cash flow
$76,466/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
Fremont Union High
NCES district ID
0614430
Math proficiency
87% ▲ 9.00%
Reading proficiency
91% ▲ 10.00%
Median HH income
$128,947
Composite
82.66/100
National rank
#20
State rank
#6 of 517 in CA

Livability — Sunnyvale

Score
82/100
State rank
#37
US rank
#1258

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Sunnyvale, CA
County
Santa Clara County · 1,806,974 people
City population
154,236
Metro
San Jose-Sunnyvale-Santa Clara, CA
Population (ZIP)
24,024
Household income
$192,417
Rent vs Own
61.9% rent · 38.1% own
Severe rent burden
585.0

Population outlook (Santa Clara County) Hauer SSP2

Today (2025)
2,179,074 people
By 2030
2,301,297 · +5.6%
By 2040
2,528,195 · +16.0%
By 2050
2,712,135 · +24.5%
By 2075
2,998,701 · +37.6%
By 2100
2,931,429 · +34.5%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Diverse neighborhood (Simpson 0.65)
Race & ethnicity
Asian 48% Hispanic / Latino 30% White 17% Two or more races 10%
Hispanic origin (detail)
Mexican 24%
Common ancestry
Romanian 1% Italian 1% Lithuanian 1%
Foreign-born
55% · China, Canada, South Korea
Languages at home
34% English-only · Spanish 23% Chinese 21% Other Indo-European 7%

Political lean MEDSL · Santa Clara

2024 margin
Solid D (+40.0) · D 68.1% · R 28.1% · Other 3.8%
2008→2024 swing
-0.9pp no change · 2008: 40.9pp · 2024: 40.0pp
All cycles
2024: D+40.0 2020: D+47.4 2016: D+52.5 2012: D+42.1 2008: D+40.9

Not yet ingested

Civics

Market trends

HPI YoY
▼ -1.85%
Current HPI
409.9671
Rent YoY
▲ 6.17%
Metro
San Jose-Sunnyvale-Santa Clara, CA
State GDP YoY
▲ 3.21%
F500 in state
116

Industry mix (Fortune 500 HQ in CA)

Industry F500 HQs Revenue

Price history

+0.0% since first listed
2 events — show timeline
  • 2026-05-08 Listed $2,080,000 bridgeMLS, Bay East AOR, or Contra Costa AOR
  • 2026-05-08 Listed $2,080,000 MLSListings

Property tax history

+1.8%/yr

Latest (2025): $6,735 · +3.6% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…