Vol. I · Field NotesLedger NYC · Editorial

How a million apartments
became invisible.

New York City’s rent stabilization program is the largest source of affordable rental housing in the United States. It is also one of the most poorly understood — by the people it’s meant to protect. Scroll on.

Scroll
§ I · The shape of it

Almost half of New York’s rentals are stabilized. Most renters can’t name their building’s status.

About 2,300,000step 1 / 3

rental homes in New York City.

Rent-stabilizedPublic / subsidizedMarket-rate / other
1 dot ≈ 23,000 NYC rental homes
Beat 01

About 2,300,000 rental homes in New York City.

Every dot is roughly 23,000 apartments — every walk-up, brownstone floor-through, prewar tower and post-war elevator building you’ve ever passed.

Beat 02

About 1,000,000 are rent-stabilized.

Almost half. The orange tiles below — that’s the mechanism keeping a million NYC households inside the city they grew up in.

Beat 03

For comparison public housing covers ~170k.

NYCHA — the largest public housing authority in North America — covers a fraction of what stabilization does. It is the affordability program no one campaigns on.

By design, rent stabilization measures generally have wider coverage than other housing affordability policies or programs.
Zapatka & de Castro Galvao, Affordable Regulation: New York City Rent Stabilization as Housing Affordability Policy (2023)
1in4
Didn’t know their apartment was regulated
“Around a third of households cannot correctly report their rent stabilization status. Rent discounts are significantly larger for households correctly aware of their benefits, with a mean monthly discount of $645 vs $218 for those unaware.”
Chen, Jiang & Quintero — Measuring the Value of Rent Stabilization (2023)
Longer-tenured renters benefit more because they accumulate savings for longer.
Zapatka & de Castro Galvao, Affordable Regulation: New York City Rent Stabilization as Housing Affordability Policy (2023)
§ III · Two lines that disagree

Most overcharges aren’t one bad lease. They’re a slow drift.

Hypothetical lease · 10 yearsillustrative · not real data
$2,000$2,400$2,800$3,200Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10Legal · $2,030
Months elapsed
24
Cumulative overcharge
$1,440
Within statute
$1,440
Illustrative — actual cases use the renewal date and RGB order in effect when each lease started, not a flat annual percentage.
Year 1

Your lease begins.

You sign at $2,000/month. Whether or not you know it, the apartment is stabilized.

Year 2

A renewal arrives.

The Rent Guidelines Board has set a 1.5% renewal increase. The legal rent ticks up to $2,030. Your landlord’s offer reads $2,150.

Year 5

The gap compounds.

Every year the legal rent grows by a board-set increase. Every year the actual rent grows faster. By year five the spread is roughly $400 per month.

Year 10

The bill, made visible.

Across a decade you have paid tens of thousands of dollars above the legal rent. None of it shows up on your lease. It shows up only when you compare two lines.

But —

only six years are recoverable.

The HSTPA statute of limitations caps your claim at the most recent six years. Anything older is real, but not recoverable. The shaded band shows what is still on the table.

§ IV · The Clock

Six years to look back. Then it’s gone.

Before 2019, a tenant could only recover four years of overcharge. The Housing Stability and Tenant Protection Act of 2019 — HSTPA — extended the lookback to six and, for willful overcharges, opened the door to triple damages. But the clock still runs.

Statute of limitationsHSTPA · enacted June 14, 2019

The clock that decides what counts.

−12y
−10y
−8y
−6y
← claim cutoff
−4y
−2y
today
Before HSTPA (≤ June 2019)

Four-year lookback. Most claims expired before tenants ever knew to file.

After HSTPA

Six years recoverable, plus treble damages for willful overcharges.

This illustrates the policy opacity, which may prevent lower educated and newcomers to the city to benefit from it, and provide room for landlords to control who they advertise the rent-stabilized status to.
Chen, Jiang & Quintero, Measuring the Value of Rent Stabilization and Understanding its Implications for Racial Inequality: Evidence from New York City (2023)
§ V · Why we built this

A free, tenant-first lookup for the apartments NYC keeps quiet.

Ledger answers two questions: is my building rent-stabilized? and given my lease history, am I being overcharged? If the answer to the second is yes, it drafts a complaint you can take to DHCR.

01
Look up the building

We search NYC Planning Labs’ geocoder for your address, then check the normalized BBL against the NYCDB rentstab_v2 dataset.

02
Walk the rent forward

If you enter a lease history, we apply Rent Guidelines Board orders #1–#57 to compute the legal renewal rent at every step and flag where the actual rent went higher.

03
Draft the complaint

We pre-fill DHCR Form RA-89 — Tenant’s Complaint of Rent Overcharges — with your numbers, ready for a tenant attorney’s review.

§ VI · What it isn’t

The places this tool will quietly miss.

!
Not legal advice

A real overcharge case may involve MCI and IAI adjustments, vacancy allowances, fraud claims, and other facts this tool can't see.

!
Not your DHCR rent history

The authoritative starting point for any case is your apartment’s registered rent history, requested via DHCR Form REC-1.

!
Not exhaustive

NYCDB coverage runs through roughly 2023; newly-stabilized or de-regulated buildings may show stale information. Cross-check on the DHCR Building Search.

§ VII · Sources & further reading
Affordable Regulation (Zapatka & de Castro Galvao, 2023)
City & Community study quantifying NYC stabilization's rent savings — the framing for the scale and tenure beats.
Measuring the Value of Rent Stabilization (Chen, Jiang & Quintero, 2023)
Regional Science and Urban Economics study documenting tenant unawareness — source for the 1-in-4 figure.
NYCDB
Community-maintained scrape of NYC tax-bill PDFs that expose stabilized unit counts.
DHCR
NY State Homes & Community Renewal — the authoritative rent registration record.
Rent Guidelines Board
Sets the annual legal renewal increases (Apartment Orders #1–#57).
DHCR Form RA-89
Tenant's Complaint of Rent Overcharges — the form Ledger drafts for you.
Met Council on Housing
Free tenant counseling — call before you file.
Now you

Look up your building.

Free. No account. Takes about thirty seconds.

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