Yes: 485-x, 467-m, and 421-a benefits attach to the tax lot, not to who holds the fee, so a building on a private ground lease qualifies exactly like a fee-simple building — no public agency needs to take title. That makes New York fundamentally different from PILOT states, and it means a NYC landowner can keep the land, collect ground rent, and still let a developer capture a full as-of-right exemption on the project above.
485-x, 467-m, and 421-a are as-of-right: meet the published program requirements and the statute exempts the increase in assessed value on the tax lot — regardless of how that lot is split between a fee owner and a leasehold owner. There is no negotiation, no discretionary board, and no agency counterparty whose ownership creates the benefit. The one NYC structure that does lock the land is the IDA PILOT: there, the statute requires the agency to take title or a leasehold interest, and the tax treatment rides on the agency's ownership. A private ground lease and a PILOT are different instruments — only one preserves a privately held, transferable fee. The distinction matters most on multifamily and affordable housing sites, where the exemption is often the difference between a project that pencils and one that doesn't.
| Private ground lease + as-of-right exemption | IDA PILOT structure | |
|---|---|---|
| How the benefit works | Statutory and automatic: the increase in assessed value on the lot is exempt once the project meets the published requirements. | Negotiated payments in lieu of taxes; the benefit exists because of the agency's interest in the property. |
| Who holds title | You do. The fee stays privately held; the developer holds only a leasehold estate. | The agency must take title or a leasehold — its ownership is what creates the tax treatment. |
| Your land during the benefit | Free: lease it, borrow against it, sell the leased fee, pass it to heirs — the exemption doesn't care. | Locked for the PILOT term; a private ground lease generally cannot coexist with it. |
| Income to the landowner | Ground rent — long-term, escalating, sized off the project's stabilized NOI and covered 3–4x. | None from the structure itself; the landowner's economics have to be built around the agency's position. |
| What comes back at the end | The fee and the reversion stay yours throughout; the lease, not a statute, governs the endgame. | Title unwinds back from the agency on the PILOT's schedule, on the agency's documents. |
The one-line version: in New York the tax benefit belongs to the lot, so the land never has to change hands to earn it — the ground lease and the exemption run in parallel instead of competing.
The exemption covers only the increase over the base-year assessment — the new value the project creates. Taxes on the land's base assessment continue through the benefit period; that continuing bill is what the market calls the “mini tax,” and under a triple-net ground lease it is typically passed to the developer-lessee along with every other carrying cost. Just as important: the statute does not allocate the benefit between lessor and lessee — the lease does. The tax provisions of the ground lease decide who wins, which is exactly why they deserve more negotiation than they usually get.
The benefits are recorded against the lot, so the fee owner joins the recorded restrictive declaration or regulatory agreement — the developer cannot deliver the program alone. And under 485-x and 467-m the affordability requirements and rent stabilization are permanent: they survive the benefit period, survive the lease, and encumber your reversion. The honest trade is this — substantial upfront and annual ground-lease value now, against a permanently regulated asset coming back at lease end, 99 years out. For most land-owning institutions — including the faith-based owners who control many of NYC's best-positioned sites — that is a good trade, but it should be made with open eyes, not discovered at the joinder. If the project also uses tax credits, note the term mechanics on our tax-credit ground lease page: federal rules set a 30-year floor on the lease term, but investors and leasehold lenders underwrite to the 55-to-99-year market convention — and a ground lease never puts land into eligible basis (land never is); what it does is convert land cost into capital, so more of the budget lives in the building.
| What it is | What the landowner should know | |
|---|---|---|
| 485-x · new construction | The current as-of-right exemption for new multifamily rental construction. Project size drives the tier: the affordability share, the benefit length, and whether construction-wage rules apply. | Small and mid-size projects avoid the wage mandates entirely — often the sweet spot for a single-lot ground lease. The affordability and stabilization are permanent, so they ride on your reversion. |
| 467-m · conversions | Commercial-to-residential conversion benefit. The benefit term steps down the later construction starts — earlier starts capture materially longer exemptions. | Real urgency for site owners: a site that gets leased and moving this year captures a longer benefit than one that waits. Conversions pair naturally with a ground lease — the land is the capital. |
| 421-a · vested projects | Closed to new entrants, but projects that started under the old program and filed for the extension have a completion runway to 2031. | Diligence item: confirm the developer's filed extension before relying on that runway. A vested exemption is valuable — and verifiable — before you sign the lease. |
Same structure, three programs: whichever program the project rides, the ground-lease mechanics are identical — the fee owner joins the recorded declaration and the exemption rides the project. Whether you hold that fee yourself or sell the position is a separate, purely financial choice — and both directions are financeable. The program choice is the developer's; the land decision is yours.
Ground rent is sized against the project's stabilized NOI — roughly 25% of NOI as the working convention, 30% as the ceiling, covered 3–4x, and lower on some deals where the stack needs the room. Lenders prefer fixed ~2% annual escalators over CPI or resets, and a financeable lease concedes the standard protections to the developer's leasehold lender: notice-and-cure, a recognition agreement, and no termination without the lender's consent. Leasing keeps the fee and an escalating income stream; selling converts the position into capital today, with no 99-year landlord role — and the two aren't mutually exclusive over time, because a leased-fee position can be sold whenever the owner's needs change. We transact on both sides: we buy sites, and we buy leased-fee positions from owners who set up a lease and later want the check. What the income stream is worth as an asset is its own question — see ground lease cap rates — and the structure is the same one that underpins every multifamily ground lease we work on.
Yes. 485-x, like 467-m and 421-a, attaches to the tax lot rather than to who holds the fee, so a building on a private ground lease qualifies exactly like a fee-simple building. The exemption is as-of-right: meet the published program requirements and the assessed-value increase on the lot is exempt. No public agency needs to take title, and the landowner's fee position does not change.
The statute exempts the lot; it does not say who wins. Allocation between lessor and lessee is purely contractual, so the lease's tax provisions decide. In practice, under a triple-net ground lease the developer-lessee pays the taxes and therefore captures the exemption directly — and the landowner captures it indirectly, because the tax-light project produces a larger stabilized NOI, and the ground rent is sized off that NOI.
The exemption covers only the increase over the base-year assessment. Taxes on the land's base assessment continue through the benefit period — that continuing bill is the so-called mini tax. Under a triple-net ground lease it is typically passed to the developer-lessee along with the other carrying costs, but that pass-through is a lease term, not a statutory default, so it belongs in the negotiation.
Under 485-x and 467-m, yes — the affordability requirements and rent stabilization are permanent. They survive the benefit period, survive the lease, and encumber the reversion, because the fee owner joins the recorded restrictive declaration or regulatory agreement. The honest trade is upfront and annual ground-lease value now against a permanently regulated asset coming back at lease end. Older 421-a options carry defined affordability periods that vary by tier, which is a diligence item on any vested project.
No. They are different instruments. An IDA PILOT delivers its tax treatment through the agency's ownership — the agency must take title or a leasehold, which locks the land, and a private ground lease generally cannot coexist with it. NYC's as-of-right programs work the opposite way: the exemption attaches to the tax lot regardless of the fee-leasehold split, so a private ground lease and a 485-x, 467-m, or 421-a benefit run in parallel. The fee stays privately held and transferable throughout.
NYC sites where the exemption and the land are both part of the answer — a landowner weighing lease-versus-sell, or a developer who needs the land converted into capital under 485-x, 467-m, or a vested 421-a. Send the address, the program tier, the unit count, and the projected stabilized NOI — we return an indicative land value fast, as principal or arranged capital.
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