The commercial side, counted separately
Of the sixty-eight, thirty-six are REITs, nine are pension funds, four are private-equity vehicles, and the rest are governments, universities, family holdings and listed corporates. That mix is the finding. The buildings most people assume are owned by "developers" are owned by retirement savings and by listed trusts whose floor area is published quarterly because their investors require it.
Housing and commercial property get counted together far too often, and they behave nothing alike. Commercial ownership is concentrated, disclosed and institutional; housing is dispersed, private and largely unrecorded. Sixty-eight commercial owners have been established across the fourteen cities so far, and what is striking is not their size but who they turn out to be.
Who actually owns the offices
Of the sixty-eight, thirty-six are REITs, nine are pension funds, four are private-equity vehicles, and the rest are governments, universities, family holdings and listed corporates. That mix is the finding. The buildings most people assume are owned by "developers" are owned by retirement savings and by listed trusts whose floor area is published quarterly because their investors require it.
The largest single positions found so far:
| Owner | Floor area | What kind of owner | Where |
|---|---|---|---|
| BGRE (formerly Brookfield Properties) | 330M sq ft managed, 1,400+ properties, five continents | Asset manager | Global |
| Rexford Industrial Realty | 51.2M sq ft, 419 properties | REIT | Los Angeles |
| FIBRA Macquarie México | 36.8M sq ft, 263 properties | REIT | Mexico City |
| Cadillac Fairview | 35M+ sq ft, 68 properties | Pension (Ontario Teachers') | Canada |
| SL Green Realty | 23.3M sq ft Manhattan office | REIT | New York |
| Vornado Realty Trust | 19.2M sq ft Manhattan office | REIT | New York |
| Douglas Emmett | 18.0M sq ft office plus 5,445 apartments | REIT | Los Angeles |
| Concert Properties | 12.5M+ sq ft | Pension-owned | Vancouver |
Canada's concentration is the most legible, because its largest office landlord is a pension fund that publishes its portfolio: Cadillac Fairview, owned by the Ontario Teachers' Pension Plan, at 35 million square feet across 68 properties. The teachers of one province own a meaningful slice of downtown Toronto, which is a more accurate sentence than any statement about "foreign buyers".
Two cautions that change how the table reads
Global figures are not city figures. BGRE's 330 million square feet is worldwide and mostly third-party managed rather than owned; Brookfield Property Partners' 67 million square feet spans 110 office assets globally. Neither belongs in a Toronto ranking, and both appear in the city records with that stated. A local figure — Allied Properties' 5.2 million square feet across 82 Toronto properties, Dream Office's 4.4 million across 23 buildings — is the comparable one.
Governments and universities are among the largest owners, and get left out of every commercial ranking. In New York the Department of Education holds 116,968,186 square feet of building area and the Port Authority 17,095,037 on a single lot — both larger than any private landlord in the city. Columbia University holds 121 lots. Commercial ranking tables exclude these as a matter of convention, which quietly misstates who holds the city.
Dallas: what an open register does to the picture
Dallas is worth its own paragraph because its appraisal roll names owners, so the largest downtown positions can be read directly rather than inferred from filings. The result is a table of entities almost nobody recognises: Dallas Main LP on 1,786,285 square feet, 1601 Elm Holdings LP on 1,431,823, 1445 Ross Ave LLC on 1,297,418, FPG CT Owner LP on 1,250,000, ROF V Ross Investment LLC on 1,245,324. Every one is a single-purpose vehicle. The register answers "who is the registered owner" precisely and "who ultimately owns this" not at all — which is the honest state of commercial ownership data almost everywhere, and the reason a REIT's own filing is often a better source than a public register.
Where the floor area comes from, and where it does not
Floor area is published freely in only two places among those examined: the Netherlands, where BAG gives construction year and floor area for every building, and England's commercial rating list, which gives occupier name, address, floor area and rateable value — effectively a commercial-property census. Everywhere else, floor area comes from the owner's own filing, which means it covers listed owners and misses private ones entirely. Any claim that a REIT is "the largest landlord" in a city really means it is the largest landlord that files.
Square-footage league tables of all owners exist only inside paid vendors — CoStar, Real Capital Analytics, Yardi, Trepp. None was used here. What can be legitimately reconstructed is the open-register cities plus the filings: New York, Miami, Cook County and Dallas from their rolls, everyone else from Schedule III property tables.
What is missing
Tenants, leases and rents appear in no government dataset anywhere in the set, so nothing on these pages says what a building earns. Beneficial ownership behind a single-purpose vehicle is available in exactly one jurisdiction examined — British Columbia, whose Land Owner Transparency Registry is free and names the individuals behind companies and trusts, the first register of its kind in Canada. Everywhere else the chain stops at the LLC, unless a mailing address gives it away, as Miami's does.