2139 E 4th St #242 · Ontario, CA 91764

$254,900

3 bd · 2.0 ba · 1,320 sqft · Manufactured public records · 26 Days on market

Built 2017 Est $251k · at est.

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Why this score? — see what drove the C+ 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 +29.4/30.0
• DSCR +10.0/10.0
• 1% rule +7.1/10.0
• ARV discount +6.8/15.0
• Schools +3.3/10.0
• Livability +3.2/5.0
• Condition / age +2.5/5.0
• Rent growth +2.4/5.0
• Appreciation +0.0/10.0

Listing remarks MLS

Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

Key facts

• Community pool
• Built 2017
• Listed 25 days

Property features AI

Finance

• Other: Mobile dimensions approximately 56' x 24'; Directions: From the 60 Freeway exit Mountain Ave, head south. Turn right on W 4th St, enter the park and continue to Space 242.
• Financial info: Assessments: buyer to verify
• HOA & community: Land lease in mobile home park: $1,450 monthly; Park name: Lamplighter Ontario Mobile Home Park; Community sidewalks

Exterior

• Parking: Attached carport
• Utilities: Standard electric; Public sewer; District/public water
• Home design: Single-story mobile home (double wide); Turnkey condition
• Construction: Shingle roof; Mobile home remains on site
• Exterior features: Open patio; Community pool; Vinyl fencing; Corner lot; Paved road access; Has view

Interior

• Kitchen: 6-burner stove; Quartz counters
• Bedrooms: All bedrooms on main level
• Flooring: Laminate flooring
• Bathrooms: 2 full bathrooms; Shower-in-tub; Granite counters in bathrooms
• Heating & cooling: Central heating (central furnace); Central cooling
• Interior features: Quartz counters; Shutters; Private spa; One level entry (entry at front door)
• Laundry & utility: Dedicated laundry room

What this means for you Summary

Snapshot

• This is a 3-bed/2.0-bath manufactured listed at $255k.

Deal economics

• At list price, monthly cash flow is $907 ($11k/yr) — positive.
• The deal already cash-flows at list — no discount required.
• Meets the 1% rule at list price ($3k rent vs $255k).
• Recommended offer: $251k (1.5% below list) — sets the bar for market timing.
• Cap rate 10.6% vs local median 2.7% in Ontario — 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 63/100 on livability (#435 in CA) — a middle-class / working-renter tenant base. Strengths: commute A-, housing B+; Watch: schools F, cost of living F, health & safety F.
• Cucamonga Elementary (suburban): math 28% / reading 42% proficiency, ranked #867 of 1,400 in CA (top 62%) — families likely to look elsewhere, expect single-tenant / working-renter base with shorter leases; 60% free/reduced lunch — lower-income household profile, screen leases tightly.
• Market conditions: Rents soft (-0.3%/yr); 77 active listings in the ZIP; 23 comparable units currently listed for rent nearby; rentals leasing fast (median 0d on market — plan ~1-2 weeks tenant-placement turnaround); solid renter incomes; 5,458 units permitted in San Bernardino County in 2024 (1,500 in 5+ unit buildings).
• At $3,074/mo this rent would consume 45% of the median local household income ($82k/yr) (locally 3075% 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 (-3.0%/yr); year-one equity from $2k of loan paydown is wiped out by about $8k of value loss. Plan a longer hold.
• San Bernardino County population projected at +15% by 2050 — modest demand growth; plan on rents tracking national, not racing it.

Negotiation context

• It's been on market 26 days — a 2% lower offer ($251k) is reasonable based on typical stale-listing flexibility.
• 7 sale attempts since 3y 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.

Risks & watch-outs

• Climate carrying-cost: major flood risk; extreme-heat days projected 6→18/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.

Recommended offer $251,076 (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 F-rated, which usually means shorter tenancies and higher turnover. Who's the typical renter profile here, and what's been the actual vacancy rate?
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: 1.21% ✓
• Cap rate: 10.57%
• Cash-on-cash: 15.26%
• DSCR: 1.68
• GRM: 6.9

CMA / ARV

• ARV (on-the-fly): $250,800
• Comps found: 4

Show comp detail 4 sales within ~0.75 mi

Address	Dist	Beds/Ba	Sqft	Sold	Price	$/sf	Match
2139 E 4th St #39	0.00mi	3/2.0	1,320 (0%)	3mo	$185,000	$140	98
2139 E 4th #90	0.00mi	3/2.0	1,272 (-4%)	6mo	$241,500	$190	89
2139 E 4th St #162	0.00mi	3/2.0	1,150 (-13%)	9mo	$230,000	$200	71
2139 E 4th St #85	0.00mi	3/2.0	1,512 (+14%)	23mo	$234,995	$155	57

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 · 0.0% rent growth · sell at horizon

5-year hold

• IRR: 2.8%
• Equity multiple: 1.10×
• Total profit: $7,383
• Equity at exit: $38,006

10-year hold

• IRR: 9.5%
• Equity multiple: 1.64×
• Total profit: $45,623
• Equity at exit: $22,039

Cash invested: $71,372 (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.

Methodology + full state rankings →

ZIP-level market 91764

• Rents YoY: -0.3%
• Active inventory: 77
• Price-to-rent: 6.9×

Monthly cashflow live

• Estimated rent: $3,074 high
• Mortgage (P&I): −$1,337
• Tax from tax record: −$78 /mo · $939/yr
• Insurance: −$106
• HOA: −$0
• Vacancy / Maint / Mgmt: −$646
• Net cashflow: $907

Break-even live

Break-even rent $1,926

Max offer price $254,900

Occupancy floor 65%

Sensitivity live

Price	-10% $1,052	-5% $980	+0% $907	+5% $835	+10% $763
Rent	-10% $665	-5% $786	+0% $907	+5% $1,029	+10% $1,150
Rate	-1.0pp $1,036	-0.5pp $972	base $907	+0.5pp $841	+1.0pp $774

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: $63,725
• Closing costs: $7,647
• Reserves months: —
• Total cash needed: —

Rent comps 23 comps

Address	Beds	Baths	Sqft	Rent	$/sqft	DOM	Units	Dist
1925 E Harvard Privado Unit C Ontario, CA	3.0	2.5	1540	$3,000	$1.95	0d	1	0.31mi
1221 N Vineyard Ave Ontario, CA	1.0–2.0	1.0–2.0	867	$2,345	$2.70	0d	5	0.40mi
1879 E Jay St Unit B Ontario, CA	3.0	1.5	1033	$2,750	$2.66	0d	1	0.45mi
2000 Inland Empire Blvd Ontario, CA	3.0	1.0–2.0	808	$3,799	$4.70	0d	34	0.60mi
1037 N Archibald Ave Ontario, CA	2.0–3.0	2.5	1612	$3,582	$2.22	0d	6	0.67mi
2615 E Date Palm Paseo Ontario, CA	1.0–3.0	1.0–2.0	937	$3,349	$3.57	0d	26	0.75mi
1725 E G St Ontario, CA	2.0–4.0	2.5–3.5	1100	$2,690	$2.45	0d	5	0.86mi
1675 E G St Ontario, CA	1.0–3.0	1.0–2.0	842	$2,500	$2.97	0d	10	0.89mi
755 N Via Dolcetto Ontario, CA	2.0	2.5	1462	$3,140	$2.15	13d	1	0.94mi
1701 E D St Ontario, CA	1.0–3.0	1.0–2.0	993	$3,175	$3.20	0d	19	0.96mi
2830 E Via Fiano Ontario, CA	4.0	3.0	1750	$3,200	$1.83	16d	1	1.00mi
2830 E Via Fiano Ontario, CA	4.0	2.5	1749	$3,200	$1.83	2d	1	1.00mi
1548 N Lassen Ave Ontario, CA	2.0	2.0	900	$2,500	$2.78	0d	1	1.03mi
2904 E Via Fiano Ontario, CA	4.0	2.5	1749	$3,250	$1.86	23d	1	1.08mi
811 N Turner Ave Unit 7 Ontario, CA	2.0	2.5	1445	$3,200	$2.21	18d	1	1.24mi
1005 N Center Ave Ontario, CA	1.0–3.0	1.0–2.0	962	$3,353	$3.49	0d	21	1.25mi
751 N Corvette Dr Unit 4 Ontario, CA	3.0	1.5	1200	$2,950	$2.46	0d	1	1.30mi
8739 Pine Crest Pl Rancho Cucamonga, CA	2.0	1.5	1179	$2,700	$2.29	0d	1	1.33mi
713 N Corvette Dr Unit 1 Ontario, CA	3.0	1.5	1350	$3,200	$2.37	11d	1	1.33mi
713 N Corvette Dr Unit 3 Ontario, CA	3.0	1.5	1250	$2,900	$2.32	4d	1	1.33mi
8731 Pine Crest Pl Rancho Cucamonga, CA	2.0	1.5	1179	$2,995	$2.54	3d	1	1.34mi
8445 Chaffee St Rancho Cucamonga, CA	4.0	2.0	1438	$3,300	$2.29	16d	1	1.38mi
8555 Sandalwood Ct Rancho Cucamonga, CA	3.0	2.0	1400	$3,375	$2.41	0d	1	1.43mi

Listing history 29 events

1. 2026-06-21
   days on market $254,900 Active 26 DOM
2. 2026-06-18
   days on market $254,900 Active 23 DOM
3. 2026-06-17
   days on market $254,900 Active 22 DOM
4. 2026-06-16
   days on market $254,900 Active 21 DOM
5. 2026-06-15
   days on market $254,900 Active 20 DOM
6. 2026-06-13
   days on market $254,900 Active 18 DOM
7. 2026-06-13
   pricedays on market $254,900 Active 17 DOM
8. 2026-06-09
   days on market $259,000 Active 14 DOM
9. 2026-06-08
   days on market $259,000 Active 13 DOM
10. 2026-06-07
    days on market $259,000 Active 12 DOM
11. 2026-06-04
    days on market $259,000 Active 9 DOM
12. 2026-06-03
    days on market $259,000 Active 8 DOM
13. 2026-06-02
    days on market $259,000 Active 7 DOM
14. 2026-06-01
    days on market $259,000 Active 6 DOM
15. 2026-05-31
    days on market $259,000 Active 5 DOM
16. 2026-05-26
    listed $259,000 Active
17. 2025-03-09
    historical
18. 2025-02-27
    status Active
19. 2024-12-12
    status Active
20. 2024-12-09
    historical
21. 2024-12-06
    price $240,000
22. 2024-11-21
    price $250,000
23. 2024-09-09
    listed $255,000 Active
24. 2024-04-05
    soldstatus $230,000 Closed Sale 470-char remark

    Show marketing remark (470 chars)

    Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

25. 2024-02-25
    status Pending Sale 470-char remark

    Show marketing remark (470 chars)

    Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

26. 2024-02-05
    historical Active Under Contract 470-char remark

    Show marketing remark (470 chars)

    Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

27. 2024-01-09
    status Active 470-char remark

    Show marketing remark (470 chars)

    Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

28. 2023-12-28
    status Active 470-char remark

    Show marketing remark (470 chars)

    Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

29. 2023-12-07
    listed $235,000 Active 470-char remark

    Show marketing remark (470 chars)

    Welcome to this beautiful home located in the highly sought after Lamplighter community. Built in 2017, this well-maintained 3-bedroom 2- Bath is comfy and cozy offering affordable living without compromising on quality. You'll find a spacious and inviting living area with the kitchen that is equipped with modern appliances and ample cabinet space. Community has a ClubHouse, Gym and Pool…. Also Near everything to do in the Inland Empire, close to all freeways

ⓘ 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: $939 · $78/mo
• Projected year-2 tax: $1,937 · $161/mo
• Expected delta: +$998/yr (+$83/mo · 106.2%)

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

Climate risk First Street

• 🌊 Flood 6/10 Major FEMA zone X (shaded) · 69% chance over 30 yrs
• 🔥 Wildfire 2/10 Low
• 🌡 Heat 7/10 Severe 6 d/yr ≥100°F today · 18 d/yr by 30 yrs out
• 💨 Wind 1/10 Low
• 🫁 Air quality 9/10 Extreme 23 unhealthy d/yr today · 28 by 30 yrs out

Taxation est. · year 1

• Rental income: $36,892
• − Mortgage interest: −$14,278
• − Property taxes: −$939
• − Insurance: −$1,274
• − Repairs & maintenance: −$2,951
• − Management: −$2,951
• − Depreciation: −$7,415
• Taxable income: $7,081
• Est. tax owed @ 24.0%: −$1,700
• After-tax cash flow: $9,190/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: Cucamonga Elementary
• NCES district ID: 0616300
• Math proficiency: 28% ▬ 0.00%
• Reading proficiency: 42% ▲ 1.00%
• Median HH income: $55,067
• Composite: 33.44/100
• National rank: #10539
• State rank: #867 of 1400 in CA

Livability — Ontario

• Score: 63/100
• State rank: #435
• US rank: #14949

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

• Census place: Ontario, CA
• County: San Bernardino County · 2,030,291 people
• City population: 183,440
• Metro: Riverside-San Bernardino-Ontario, CA
• Population (ZIP): 56,270
• Household income: $81,762
• Rent vs Own: 54.9% rent · 45.1% own
• Severe rent burden: 3075.0

Population outlook (San Bernardino County) Hauer SSP2

• Today (2025): 2,300,329 people
• By 2030: 2,378,907 · +3.4%
• By 2040: 2,523,137 · +9.7%
• By 2050: 2,642,388 · +14.9%
• By 2075: 2,880,769 · +25.2%
• By 2100: 2,909,436 · +26.5%

Race, ethnicity, and origin ACS 2023

• Neighborhood character: Predominantly Hispanic (70%)
• Race & ethnicity: Hispanic / Latino 70% Two or more races 26% White 12% Black 8% Asian 6% Native American 2%
• Hispanic origin (detail): Mexican 60%
• Common ancestry: Italian 1% Romanian 1% Serbian 1%
• Foreign-born: 28% · Canada, China, Vietnam
• Languages at home: 44% English-only · Spanish 50% Chinese 1% Tagalog/Filipino 1%

Political lean MEDSL · San Bernardino

• 2024 margin: Toss-up / Even · D 47.5% · R 49.7% · Other 2.8%
• 2008→2024 swing: -8.5pp toward R · 2008: 6.3pp · 2024: -2.1pp
• All cycles: 2024: R+2.1 2020: D+10.7 2016: D+9.8 2012: D+5.4 2008: D+6.3

Not yet ingested

• Civics: —

Market trends

• HPI YoY: ▼ -571.87%
• Current HPI: 456.8173
• Rent YoY: ▼ -0.27%
• Metro: Riverside-San Bernardino-Ontario, CA
• State GDP YoY: ▲ 3.21%
• F500 in state: 116

Industry mix (Fortune 500 HQ in CA)

Industry	F500 HQs	Revenue
▸Technology	27	$1,492B
▸Financial Services	3	$174B
▸Retail	3	$44B
▸Insurance	3	$26B
▸Media / Entertainment	2	$115B
▸Pharmaceuticals / Biotech	2	$62B

Price history

+10.2% since first listed

14 events — show timeline

• 2026-05-26 Listed $259,000 CRMLS
• 2025-03-09 Listing Removed — CRMLS
• 2025-02-27 Relisted — CRMLS
• 2024-12-12 Relisted — CRMLS
• 2024-12-09 Listing Removed — CRMLS
• 2024-12-06 Price Changed $240,000 CRMLS
• 2024-11-21 Price Changed $250,000 CRMLS
• 2024-09-09 Listed $255,000 CRMLS
• 2024-04-05 Sold (MLS) $230,000 CRMLS
• 2024-02-25 Pending — CRMLS
• 2024-02-05 Contingent — CRMLS
• 2024-01-09 Relisted — CRMLS
• 2023-12-28 Relisted — CRMLS
• 2023-12-07 Listed $235,000 CRMLS

Property tax history

+14.4%/yr

Latest (2025): $939 · +21.9% YoY. Source: county tax records.