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Property summary
This 9-unit apartment building at 323 West 100th Street, New York, NY 10025, offers a compelling investment opportunity. The 6,942 square foot, five-story building, constructed in 1910, boasts a classic Renaissance-revival style within a 20-foot wide lot (2,018 sq ft). Recent upgrades include a new boiler, roof, backyard, and common areas, preserving the original historic woodwork and detailing. Currently vacant, this property presents a blank canvas for immediate income generation. The R8B… zoning allows for 1,130 square feet of additional development rights. Located in the Riverside-West End Extension II historic district, the building benefits from its proximity to Riverside Park, the Hudson River, and the 1 train at 103rd Street. The asking price is $4,600,000, translating to $511,111 per unit and $662.63 per square foot. This prime Upper West Side location, adjacent to Riverside Park and near the Broadway commercial corridor, ensures strong rental demand and future appreciation potential. The building's excellent condition and recent renovations minimize immediate capital expenditures, making it an attractive investment for discerning buyers.
Ownership intelligence
Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.
Owner contacts
Skip-traced phones and e-mails of the owner. Included with a plan.
Debts
Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.
Property tax · 2024
Value estimate
· Oct 2026Realmo valuation models over county records and 5 qualifying comparable sales.
Recently sold
Cap rate analysis
No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.
Zoning insight
Location intelligence
Demand index: how under-served this business type is around this point — modeled from the LocInt grid (area demand vs. what already operates, adjusted by real visit traffic). Higher means stronger unmet demand.
Location
Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.
Comparables
6 recorded sales · 18 properties nearbyComparable nearby
Similar in This City for Sale
Similar in This City for Lease
Instant AI valuation built from comps, income signals, and proprietary benchmarks.A defensible range, not a single guess.
from $199/month
- GBA
- 6,942 SF
- Lot area
- 0.05 ac
- Year built
- 1910
- Stories
- 5
- APN
- 01889-0009
- Zoning
- R8B
- Assessed value · 2024
- $390,364
- Annual tax · 2024
- $48,803
- Commercial (general)
- Apartment House (5+ Units) · current use
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
from $199/month
Price sensitivity
The rate is the decision lever; valuation is the consequence.
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
Registration is required before the official district profile is shown.
Official district profile
In R8B Districts, within the boundaries of Community District 8 in the Borough of Manhattan, the maximum floor area ratio on a zoning lot containing community facility use exclusively shall not exceed 5.10 In addition, t…
Unlock the evidence behind ownership: portfolio, transactions, debt and any signals we can model, to help you decide who to contact next.
Registration is required before any owner information is shown.
Phones and e-mails of the people behind this property's owner, traced from licensed contact data.
Owner phones and e-mails come with a plan - traced from licensed contact data, with verification and Do-Not-Call flags on every number.
The mortgage data comes with a plan: recorded loans of the owner - lender, amount, rate and the estimated maturity - as part of the Ownership Intelligence workspace.
Registration is required before any owner information is shown.
- 10 Targeted Leads
- 1 Full Property Report
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
-
Zoning Insight— not in this plan -
Location Analytics— not in this plan
- 300 Targeted Leads a month
- 30 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
-
Location Analytics— not in this plan
- 1,500 Targeted Leads a month
- 150 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
- Location Analytics
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