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521 W 135th St Unit 5B 🏢 Co-op
B+ Composite 76.89
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
  • ARV discount +7.5/15.0
  • Schools +5.0/10.0
  • Rent growth +4.2/5.0
  • Appreciation +4.0/10.0
  • Livability +3.8/5.0
  • Condition / age +2.5/5.0

$315,000

521 W 135th St Unit 5B · New York, NY 10031
3 bd · 1.0 ba · 850 sqft · Condo · 182 Days on market
Built 1915 ↓ 16% since listing

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Listing remarks

Great opportunity to own this 3-bedroom coop in West Harlem. Perfect location and blocks away from the University, shopping centers, markets, train station, bus and so much more. This coop is located in a clean, well managed, secure building on a quiet street. The building has video cameras on every floor. This is an HDFC walk-up building. Unit is on the 5th floor. Laundry room and Recreation center on the lower level. The building has an income cap of 120% of the area median income (1 person $118,680, 2 people $135,600, 3 people $152,520) Easy board approval for qualified candidates. Don’t miss out.

Key facts

  • Quiet street
  • Secure building
  • Laundry room

Tags

CLEAN BUILDINGWELL MANAGED BUILDINGSECURE BUILDINGQUIET STREETVIDEO CAMERASLAUNDRY ROOM

Property features AI

Exterior

  • Parking: No carport; No dedicated parking
  • Utilities: Public sewer; Electricity available; Natural gas connected; Water connected
  • Home design: Stock cooperative (co-op)
  • Construction: Brick construction
  • Exterior features: Brick exterior; Not waterfront

Interior

  • Kitchen: Convection oven; Refrigerator
  • Bedrooms: 5-story building (unit in a multi-story building)
  • Bathrooms: 1 full bathroom
  • Heating & cooling: Natural gas heating; Wall/window air conditioning units
  • Interior features: Original details; Common basement
  • Laundry & utility: Common area laundry room

Neighborhood map

Property Rental comp Retail Transit Schools Stadiums Fortune 500 · Circle radius: 3.0 mi
Loading POIs…
🏢 Co-op / cooperative unit. The $315,000 price buys shares in the cooperative corporation, not the real estate itself — so it isn't comparable to a fee-simple sale price, and the cashflow / cap-rate / 1%-rule cards below (which assume you own the property and can rent it out) don't apply here. Expect board approval and a monthly maintenance fee on top of the price.

What this means for you Summary

Snapshot

  • This is a 3-bed/1.0-bath condo listed at $315k.

Deal economics

  • At list price, monthly cash flow is $2k ($26k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($5k rent vs $315k).
  • Recommended offer: $277k (12.0% below list) — sets the bar for market timing.
  • Cap rate 14.5% vs local median 2.6% in New York — 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 75/100 on livability (#268 in NY, #4,188 nationally) — a middle-class / working-renter tenant base. Strengths: amenities A+, commute A+, health & safety A; Watch: crime F, cost of living F.
  • Market conditions: Rents rising fast (+6.7%/yr); 89 active listings in the ZIP; 15 comparable units currently listed for rent nearby; rentals leasing fast (median 12d on market — plan ~1-2 weeks tenant-placement turnaround); 4,467 units permitted in New York County in 2024 (4,463 in 5+ unit buildings).
  • At $5,492/mo this rent would consume 101% of the median local household income ($65k/yr) (locally 5780% 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 (-2.1%/yr); year-one equity from $2k of loan paydown is wiped out by about $6k of value loss. Plan a longer hold.
  • New York County population projected at +21% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
  • At projected returns (-2.1% appreciation + 6.7% rent growth), your $88k cash investment doubles in ~4 years — after that, you're playing with house money.

Negotiation context

  • It's been on market 182 days — a 12% lower offer ($277k) is reasonable based on typical stale-listing flexibility.

Risks & watch-outs

  • Watch-outs: built in 1915 — expect roof / HVAC / electrical / plumbing capex.
  • Climate carrying-cost: major wind risk, 27% chance of damaging wind over 30y; extreme-heat days projected 7→13/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $277,200 (12.0% below list)

Questions for the listing agent

  1. It's been on market 182 days. Have you received any prior offers? Is the seller open to a 12% concession, seller financing, or rate buy-down credit?
  2. Built in 1915 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  3. Any open or pending special assessments — roof, HVAC, plumbing, elevator, façade? What's the per-unit balance and payoff schedule, and is the seller paying it off at close or rolling it to the buyer?
  4. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
  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. Crime grade is F in this area — have there been break-ins, vandalism, or insurance claims at this property in the last 3 years? What carrier currently insures it and at what premium?
  8. 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.
  9. 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.
  10. 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
1.74%
Cap rate
14.53%
Cash-on-cash
29.42%
DSCR
2.31
GRM
4.8

CMA / ARV

No comps found within radius.

Projected returns pro-forma

-2.06% appreciation · 6.67% rent growth · sell at horizon

5-year hold
IRR
29.7%
Equity multiple
2.36×
Total profit
$120,327
Equity at exit
$60,329
10-year hold
IRR
37.9%
Equity multiple
5.38×
Total profit
$386,659
Equity at exit
$50,751

Cash invested: $88,200 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (CITY)
0 Strongly Tenant-Friendly
State New York
15 Strongly Tenant-Friendly · D+10
County
— inherits STATE
City New York
0 Strongly Tenant-Friendly · D+34
Rent Stabilization Code; HSTPA; 6+ months in housing court.

ZIP-level market 10031

Home prices YoY
-0.4%
Rents YoY
6.7%
Active inventory
89
Price-to-rent
4.8×

Monthly cashflow live

Estimated rent
$5,492 high interval (Pro) →
Mortgage (P&I)
$1,652
Tax est. 1.5%
$394 /mo · $4,725/yr
Insurance
$131
HOA
$0
Vacancy / Maint / Mgmt
$1,153
Net cashflow
$2,162

Break-even live

Break-even rent $2,756
Max offer price $315,000
Occupancy floor 56%

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
$78,750
Closing costs
$9,450
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 15 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
300 W 135th St Unit 9G New York, NY 3.0 2.0 1032 $5,500 $5.33 5d 1 0.43mi
543 W 122nd St New York, NY 2.0 1.0–2.0 1057 $10,995 $10.40 2d 7 0.66mi
132 W 134th St New York, NY 2.0 1.0 750 $4,500 $6.00 24d 1 0.69mi
230 W 126th St Unit 20C New York, NY 2.0 1.0 860 $4,555 $5.30 24d 1 0.73mi
508 Manhattan Ave Unit 2C New York, NY 3.0 1.0 800 $4,699 $5.87 11d 1 0.81mi
312 W 121st St Unit 4C New York, NY 3.0 2.0 900 $4,854 $5.39 7d 1 0.81mi
506 Manhattan Ave Unit 1A New York, NY 3.0 1.0 800 $4,699 $5.87 11d 1 0.82mi
312 W 121st St Unit 5-A New York, NY 3.0 1.0 800 $4,655 $5.82 11d 1 0.84mi
2071 Adam Clayton Powell Junior Blvd Unit 2 New York, NY 4.0 2.0 1000 $5,995 $6.00 19d 1 0.88mi
100 Tower Dr Edgewater, NJ 1.0–3.0 1.0–2.5 1290 $7,540 $5.84 1d 9 1.07mi
30 Morningside Dr #2096 New York, NY 1.0–2.0 1.0–2.0 780 $9,000 $11.53 3d 2 1.13mi
1 Morningside Dr New York, NY 3.0 1.0–2.0 1655 $9,980 $6.03 1d 1 1.28mi
100 River Mews Ln Edgewater, NJ 3.0 1.0–2.0 988 $5,205 $5.27 2d 1 1.31mi
2413 3rd Ave Bronx, NY 1.0–3.0 1.0–2.0 857 $4,997 $5.83 11d 23 1.41mi
4 W 108th St Unit 28 New York, NY 4.0 1.0 750 $5,550 $7.40 20d 1 1.45mi

HOA detail condo

Monthly dues
$0 · $0/yr
Assessments
None detected in remarks — confirm with the listing agent.

Listing history 6 events

  1. 2026-04-28
    status Pending
  2. 2026-04-17
    historical
  3. 2026-02-03
    price $315,000
  4. 2026-01-08
    price $329,999
  5. 2025-11-13
    price $349,999
  6. 2025-10-16
    listed $375,000 Active

ⓘ 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 1/10 Low
  • 🌡 Heat 6/10 Major 7 d/yr ≥99°F today · 13 d/yr by 30 yrs out
  • 💨 Wind 6/10 Major 27% chance of damaging wind over 30 yrs
  • 🫁 Air quality 4/10 Moderate 5 unhealthy d/yr today · 6 by 30 yrs out

Nearby sold comps map

Loading sold comps map…

Walkable amenities ~0.75 mi

Loading nearby amenities…

Taxation est. · year 1

Rental income
$65,908
− Mortgage interest
−$17,645
− Property taxes
−$4,725
− Insurance
−$1,575
− Repairs & maintenance
−$5,273
− Management
−$5,273
− Depreciation
−$9,164
Taxable income
$22,254
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$5,341
After-tax cash flow
$20,603/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)

No district data.

Livability — New York

Score
75/100
State rank
#268
US rank
#4188

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
New York, NY
County
New York County · 1,599,927 people
City population
7,731,280
Metro
New York-Newark-Jersey City, NY-NJ-PA
Population (ZIP)
61,058
Household income
$65,283
Rent vs Own
85.9% rent · 14.1% own
Severe rent burden
5780.0

Population outlook (New York County) Hauer SSP2

Today (2025)
1,825,725 people
By 2030
1,904,611 · +4.3%
By 2040
2,052,719 · +12.4%
By 2050
2,206,601 · +20.9%
By 2075
2,509,427 · +37.4%
By 2100
2,702,933 · +48.0%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Diverse neighborhood (Simpson 0.67)
Race & ethnicity
Hispanic / Latino 49% Black 25% Two or more races 21% White 18% Asian 4%
Hispanic origin (detail)
Mexican 4% Puerto Rican 4% Dominican 32%
Common ancestry
Italian 2% Hispanic 1% Romanian 1%
Foreign-born
38% · Canada, China, Jamaica
Languages at home
47% English-only · Spanish 43% French/Haitian/Cajun 3% Other Asian/Pacific 1%

Political lean MEDSL · New York

2024 margin
Solid D (+64.8) · D 82.4% · R 17.6%
2008→2024 swing
-7.4pp toward R · 2008: 72.2pp · 2024: 64.8pp
All cycles
2024: D+64.8 2020: D+74.5 2016: D+77.2 2012: D+69.6 2008: D+72.2

Not yet ingested

Civics

Market trends

HPI YoY
▼ -2.06%
Current HPI
468.3156
Rent YoY
▲ 6.67%
Metro
New York-Newark-Jersey City, NY-NJ-PA
State GDP YoY
▲ 2.60%
F500 in state
92

Industry mix (Fortune 500 HQ in NY)

Industry F500 HQs Revenue

Price history

-16.0% since first listed
6 events — show timeline
  • 2026-04-28 Pending OneKey® MLS as Distributed by MLS Grid
  • 2026-04-17 Listing Removed OneKey® MLS as Distributed by MLS Grid
  • 2026-02-03 Price Changed $315,000 OneKey® MLS as Distributed by MLS Grid
  • 2026-01-08 Price Changed $329,999 OneKey® MLS as Distributed by MLS Grid
  • 2025-11-13 Price Changed $349,999 OneKey® MLS as Distributed by MLS Grid
  • 2025-10-16 Listed $375,000 OneKey® MLS as Distributed by MLS Grid

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

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