A ground lease is a long-term lease of land only, under which the tenant builds and owns improvements on the site for the term, then hands them back to the landowner at expiration. Base terms commonly run 30 to 99 years. The landowner keeps the fee title and collects ground rent; the tenant carries the construction cost, the operating risk and, usually, every expense the property generates. When the lease ends, the building reverts to the landowner.
That reversion is the whole point, and it is what makes ground leases behave unlike anything else in a portfolio. A 60-page office lease is about occupancy for a decade. A ground lease is a capital structure with a clock on it, and the clock does not stop for anybody.
How a ground lease works
The structure separates two things that normally travel together: the land and what sits on it. A landowner who does not want to sell, or cannot sell, leases the dirt instead. A developer who wants the site but not the land cost signs up to pay ground rent for decades and puts its capital into the building.
Both sides get something specific. The landowner keeps the asset in the family or on the balance sheet, collects contractual income, and eventually receives a building it did not pay for. The developer converts a large acquisition cost into an operating expense and gets a project underway on land it could never have afforded outright. Institutions, universities, municipalities, transit agencies and long-held family estates are the classic US ground lessors for exactly this reason.
The tenant's position is a leasehold interest. It is a real, financeable, sellable property right, but it is a wasting one: every year the remaining term gets shorter, and the value of the leasehold declines as expiration approaches unless the lease is extended or bought out.
What is the difference between a ground lease and fee simple?
Fee simple is outright ownership of land and improvements with no time limit. A ground lease gives the tenant temporary control of the land and ownership of the improvements only for the term. The practical differences show up in financing, in what the interest is worth as it ages, and in who ends up with the building.
| Fee simple | Ground lease (leasehold) | |
|---|---|---|
| Who owns the land | The owner | The ground lessor, throughout |
| Who owns the building | The owner | The tenant, but only until expiration |
| Duration | Perpetual | Fixed term, commonly 30 to 99 years |
| Upfront cost | Full land and construction cost | Construction cost only, plus ongoing ground rent |
| Value over time | No structural decay from the passage of time | Declines as the remaining term shortens |
| End state | Owner keeps everything | Improvements revert to the landowner |
An appraiser will value a leasehold on a ground lease with 12 years left very differently from the same building with 78 years left. Remaining term is not a detail on a ground lease. It is a primary valuation input, which is why it belongs in the abstract as a computed figure rather than a start date buried in a recital.
Is a ground lease the same as a triple net lease?
No, though the two overlap so often that the terms get used loosely. Triple net describes an expense structure: the tenant pays taxes, insurance and maintenance on top of base rent. Ground lease describes what is being leased: the land, long term, with the tenant owning the improvements it builds.
Most ground leases are written on absolute net terms, so in practice a ground lease usually is triple net or better. But a triple net lease of an existing building is a completely different transaction: the tenant occupies space someone else built, for years rather than decades, and nothing reverts at the end because the landlord owned the building all along.
The clean way to keep them straight: triple net answers "who pays what." Ground lease answers "what am I actually leasing, and for how long."
Subordinated vs unsubordinated ground leases
This is the single most consequential distinction in a ground lease and the one most often missed in an abstract. It determines what happens to the landowner if the tenant's lender forecloses.
- Unsubordinated. The landowner's fee interest sits ahead of the tenant's mortgage. If the tenant defaults, the lender can take the leasehold and the improvements but cannot touch the land. The landowner is protected, and this is the default position most institutional ground lessors insist on.
- Subordinated. The landowner agrees to place its fee interest behind the tenant's construction or permanent financing. If the tenant defaults, the lender's security reaches the land as well. The landowner is effectively guaranteeing the developer's loan with its own asset, which is why subordination is usually paid for through higher ground rent or a participation.
A tenant trying to finance a project on an unsubordinated ground lease depends heavily on the leasehold mortgagee protections written into the lease: notice of default sent to the lender, a separate and longer cure period, the right to step in and take over the leasehold, and the right to a new lease on the same terms if the original is terminated. Lenders read those provisions before they read the rent. If they are thin, the deal does not get financed.
Because these protections govern how a lender's interest survives a default, they interact directly with subordination and non-disturbance terms, and both need to come out of the document as fields rather than as a note saying "see Article 14."
Ground rent and how it resets
Ground rent is small relative to the building's income but runs for a very long time, so the escalation mechanism matters more than the opening number. Four patterns cover most US ground leases.
| Mechanism | How it works | What to watch |
|---|---|---|
| Fixed percentage | Rent steps up a stated percentage each year or at set intervals | Predictable and easy to model; the modern institutional standard |
| CPI adjustment | Rent moves with an inflation index, often with a floor and a cap | Which index, which base month, and whether the cap is annual or cumulative |
| Fair market value reset | Rent is revalued periodically to a percentage of the land's then-current value | The dangerous one: a reset can multiply rent, and the appraisal method and land-use assumption drive the answer |
| Percentage rent | Landowner takes a share of the project's revenue above a threshold | Definition of gross revenue, exclusions, and reporting obligations |
Fair market value resets deserve particular attention. A reset scheduled 30 years out is easy to ignore for 29 years and then repriced against land values nobody forecast in the original underwriting. The appraisal instruction inside the clause, especially whether the land is valued as vacant and unimproved or as improved and in its current use, can change the result substantially. Capture the reset dates, the formula and the valuation assumption as separate rent escalation fields, and put every reset date on the calendar the day the lease is abstracted.
The structure has become institutionalized enough that ground leases now support their own public equity category, with a listed REIT built specifically around originating long-dated ground leases under existing buildings on standardized terms. If you are sizing that up against other net lease names, it helps to turn the ticker into a structured research card before comparing yields, because the risk profile of a land position sitting under someone else's building is not the same as owning the building.
What happens at the end of a ground lease?
Absent a renewal option or a negotiated extension, the term expires, the tenant's leasehold ends, and the improvements revert to the landowner, normally free of any liens and in a condition the lease specifies. The tenant receives nothing for the building unless the lease says otherwise.
In practice, expiration is rarely allowed to arrive cleanly. As the remaining term drops below the horizon lenders will finance against, typically somewhere in the 25 to 40 year range depending on asset and market, the leasehold becomes progressively harder to refinance or sell. That pressure is what drives the real endgame: an extension, a buyout of the fee, or a sale of the leasehold to whoever can still finance it. Anyone underwriting a leasehold needs to know exactly how many years remain and what the renewal rights say, well before the market starts pricing the shortfall.
What should be in a ground lease abstract?
A ground lease abstract is not a longer version of an office lease abstract. Several of the fields that dominate a standard abstract barely matter here, and several that a standard abstract does not have are the entire risk.
| Field | Why it matters |
|---|---|
| Commencement, expiration, remaining term | Remaining term drives valuation and financeability; compute it, do not just record the dates |
| Renewal options and notice deadlines | Missing a ground lease renewal notice can forfeit decades of value in a single deadline |
| Subordinated or unsubordinated | Determines whether the landowner's fee is exposed to the tenant's lender |
| Leasehold mortgagee protections | Notice, cure rights, step-in rights and new-lease rights; the provisions lenders underwrite |
| Ground rent schedule and reset mechanism | Fixed steps, CPI, fair market reset or percentage rent, with every reset date calendared |
| Assignment and transfer rights | Whether the leasehold can be sold or financed without landowner consent, and on what conditions |
| Construction and use obligations | What must be built, by when, and what happens if it is not |
| Casualty, condemnation and restoration | Who rebuilds, who takes the award, and whether the lease survives |
| Reversion and end-of-term condition | What returns to the landowner, in what state, and lien free or not |
| Estoppel and reporting obligations | What each party must certify and how often |
Two of those carry outsized consequences. Renewal notice deadlines on a ground lease are measured against a term nobody in the building will still be working through, so they have to live in a critical date system rather than in institutional memory. And ground lease estoppel certificates get requested at exactly the wrong moments, during a refinancing or a sale, with a short turnaround; a team that already has the lease abstracted answers in an afternoon instead of a fortnight.
How long is a typical ground lease?
Base terms typically run 30 to 99 years, frequently with renewal options on top. Ninety-nine years is the traditional benchmark and remains the standard term for modern institutional ground leases, because it comfortably exceeds the useful life of most buildings and the horizon of any lender. Shorter ground leases, in the 30 to 50 year range, appear on municipal, transit and university land where the owner wants the site back within a planning cycle.
Who owns the building on a ground lease?
The tenant owns the improvements during the term and depreciates them, which is why a ground lease tenant is an owner in every practical sense until expiration. Ownership transfers to the landowner at the end of the term through reversion. Some leases modify this, requiring removal of improvements instead, or providing compensation at expiration, so the reversion clause has to be read rather than assumed.
Can you get a mortgage on a ground lease?
Yes. Leasehold mortgages are a well-established financing product, but lenders underwrite the lease as closely as the property. They look for a remaining term comfortably longer than the loan, usually with a substantial cushion beyond maturity, plus the leasehold mortgagee protections described above. An unsubordinated ground lease with weak lender protections and 22 years to run is a difficult financing; the same building on 85 remaining years with full protections is routine.
What are the disadvantages of a ground lease?
For the tenant: no residual value in the improvements, a wasting asset, financing that gets harder every year, exposure to rent resets, and the need for landowner consent on transfers. For the landowner: capital tied up for generations, no control over how the site is developed after the initial obligations are met, ground rent that can fall well behind market if the escalation mechanism was drafted badly, and, on a subordinated lease, real exposure to the tenant's lender. Neither side gets a structure without teeth.
Getting ground leases into a usable form
Ground leases are long, old and unusually consequential per page. Many were signed decades ago, amended several times, and now sit in a file that nobody has read end to end since the original transaction closed. The information a portfolio actually needs, remaining term, next reset, notice deadlines, transfer conditions, mortgagee protections, is spread across articles that were drafted to survive a century rather than to be summarized.
That is ordinary abstraction work, just with a different field set and much higher stakes on the date fields. If your portfolio includes ground leases alongside conventional leases, abstract them against a ground-lease-specific field list rather than forcing them into an office template, and keep every value linked back to the clause it came from so a lender's question can be answered from the abstract instead of the document. Our lease abstraction services and software comparison covers the options for getting a back catalog like that read, and the commercial lease key terms guide sets out the fields a standard abstract captures before you extend it for land.