- Year built
- 2001
- Type
- Cooperative
- Units
- 128
- Floors
- 9
Every recorded sale at this building, 2004–2025
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $779
- Listing discount
- 3.6%
- Recorded sales
- 72
- On record
- 2004–2025
This is a building where the tax benefit, not the architecture, is the story.
Madison Park was completed in 2001 and carries a 25-year 421-a exemption that began in 2004 and runs through 2029. That places it in the cohort now moving through the final years of the longest 421-a term, and the phase-out is already visible in the City's own published rolls rather than being a projection: the exempt value falls from roughly $10.9 million on the 2021 roll to about $4.7 million on the 2027 roll. The remaining benefit is being withdrawn on a fixed schedule that ends in 2029.
The building is a Housing Development Fund Corporation cooperative — the owner of record on PLUTO is NYC Housing Partnership HDFC. HDFC co-ops are income-restricted by their own certificates of incorporation and regulatory agreements, and the specific income caps, flip tax and resale terms are set per building rather than by a citywide rule. Anyone underwriting a purchase here should read the corporation's own documents rather than assume the standard market-rate co-op terms.
Those two facts compound. A shareholder in an income-restricted cooperative has a limited ability to absorb a step-change in monthly carrying cost, and the 421-a phase-out delivers exactly that on a known timetable.
Architecture and unit composition
The building is a nine-story elevator cooperative of roughly 138,050 square feet, completed in 2001 on the Madison Avenue corridor in Harlem.
A note on the unit count. PLUTO records 129 residential units; the Roebling research warehouse carries 128 for the same tax lot. A one-unit difference of this kind is routine and usually reflects a superintendent's apartment, a unit converted to community or office use, or a combination recorded in one system and not the other. Neither number is wrong; they are counting slightly different things. The figure that governs a transaction is the one in the cooperative's own offering plan and current stock ledger, and that is what should be confirmed at diligence.
Building operations
Operating detail for this building — staffing, capital plan, reserve position and the current managing agent — is not established from public records alone and is not asserted here. It should be confirmed from the corporation's financial statements, board minutes and the managing agent at offer stage.
Policy framework
Madison Park is an HDFC cooperative. The governing constraints are the corporation's certificate of incorporation, its regulatory agreement with the City, and its house rules, which together set income eligibility, resale price limits where they apply, flip tax and sublet policy. These terms vary building to building and are not inferable from the tax record. Obtain the purchase application package and the regulatory agreement before making an offer.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $28,567/yr
- Per unit / month range
- $0 – $18
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City record last verified September 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →Facade safety — Local Law 11
The latest available FISP filing classified the facade as Safe — no repairs were required at that inspection. Facade inspections run on a fixed five-year cycle; future inspection, repair, and any assessment decisions remain building-specific.
How to read this, and where it comes from
QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign the report (the independent expert, not the managing agent).
Penalties shown are amounts DOB assessed against filings on record across 2005–10 to 2020–25. The FISP dataset does not record whether they were paid, contested or remain open, so treat the figure as history rather than a current balance and confirm the building’s standing with the managing agent.
Source: NYC DOB facade filings (FISP) · The Roebling Research Library. City record last verified September 2026.
421-a Tax Abatement
- Benefit end year
- 2029
- Years remaining
- ~3 yrs
- Program
- 421-a (25-year)
The 421-a benefit ends within a few years. Taxes will step up toward the full assessed amount as it phases out — factor the post-abatement tax into any resale math.
Source: NYC Dept. of Finance property-tax exemption records (421-a), refreshed 2026-09-06 · The Roebling Research Library. Confirm the exact step-up schedule on the building’s DOF tax bill.
Recent sales
The building trades. NYC Department of Finance recorded transfers show a continuous history at this tax lot from May 2004 through November 2025, which is what distinguishes a working HDFC cooperative from a purely regulated rental. The recorded-price record is maintained in The Roebling Research Library and reproduced in the data room on this page.
Pricing at an HDFC is not directly comparable to open-market Harlem co-op pricing, because the income restriction and any resale formula constrain the buyer pool and, in some buildings, the price itself. Read the recorded figures against the corporation's own resale terms rather than against the surrounding market.
Recent transfers at this building, curated by The Roebling Team research desk. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Nov 19, 2025 | 4E | 2 BR · 2 BA · 885 sf | $600,000 | $678/sf | -7.6% |
| Mar 7, 2025 | 6A | 2 BR · 2 BA · 860 sf | $640,000 | $744/sf | -4.3% |
| Dec 18, 2024 | 7L | 2 BR · 2 BA | $600,000 | -7.6% | |
| Mar 4, 2024 | 8D | 2 BR · 2 BA · 946 sf | $711,000 | $752/sf | -1.9% |
| Jul 25, 2023 | 6M | 3 BR · 2 BA | $809,000 | -1.9% | |
| Jun 29, 2023 | 3F | 2 BR · 2 BA · 900 sf | $590,000 | $656/sf | -1.7% |
| Jun 27, 2023 | 6G | 2 BR · 2 BA | $585,000 | -4.9% | |
| Feb 1, 2023 | 8I | 2 BR · 2 BA · 946 sf | $725,000 | $766/sf | +0.0% |
Market read. Most recent trades (2025) cleared a median $779/sf across 2 sales. Median listing discount 3.6% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01746-0021) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage on co-ops is not officially recorded, figures shown are approximate.
What to know if you’re buying
Underwrite the 2029 tax step, not today's maintenance. The 421-a exemption ends in 2029 on a schedule already published in the DOF rolls. Ask the managing agent for the corporation's projection of the fully-taxed bill and how the board intends to absorb it. A building that has planned for it and a building that has not will look identical on a current maintenance statement.
Read the HDFC documents before anything else. Income eligibility, resale restrictions and flip tax are set per building. They determine whether you qualify and what you can later sell for, and they are not visible in any public dataset.
Confirm the unit count and your specific unit from the offering plan. The City's two records disagree by one unit; the stock ledger is the authority.
What to know if you’re selling
Know your buyer pool before pricing. Income eligibility narrows it, and the closer the building gets to 2029 the more a well-informed buyer will price the coming tax step into an offer.
Have the tax answer ready. Sellers who can show the board's plan for the post-2029 bill are answering the question that will otherwise be used to negotiate against them.
Comparable buildings
Comparisons should be drawn against other Harlem cooperatives with an HDFC structure and a similar 421-a position rather than against open-market inventory on the same avenue. The 421-a tax abatement guide explains how the phase-out schedule works and what the expiry does to monthly carrying cost.
This page reflects publicly available City records and The Roebling Team research. Building details should be confirmed with the managing agent during due diligence; the offering plan, regulatory agreement, current building budget and current tax bill should be reviewed for any specific transaction. © 2026 The Roebling Team at Compass.
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across Harlem — read The Roebling Team Guide to Harlem.
The full playbook — what goes in the package, how boards read your financials, the interview, and the timeline — plus sample cover, reference, and personal letters you can adapt.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent.
Considering a move at Madison Park Apartments?
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A Private Pricing Opinion — what your apartment at Madison Park Apartments would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.