Philadelphia office buildings — the public record
Every office-class parcel in Philadelphia — who owns it and what the assessor values it at, what it last sold for and which businesses the public record places inside. Built exclusively from government data: Office of Property Assessment nightly roll (owner and mailing address on every parcel), Department of Records deed transfers with consideration and counterparties, and L&I business licences joined by OPA account. The universal Commercial Activity licence roll publishes no premises addresses, so occupancy shows regulated activities only. No listing sites, no scraping — every page cites its sources.
🔒 Create a free account to export CSV · every Philadelphia office parcel: owner, use code, floors, area, assessed value
Most locations on record
Companies across Philadelphia offices
The skyline, by the county roll
Notable office buildings
| Building | Submarket | Floors | Sq ft | Built | Assessed | Recorded owner | Tenants |
|---|---|---|---|---|---|---|---|
| 1500-42 MARKET ST | Philadelphia | 43 | 2.2M | 1974 | $107M | NG 1500 MARKET ST LLC | 7 |
| One Liberty Place | Philadelphia | 61 | 1.5M | 1986 | $311.5M | PHILA LIBERTY PLA E LP | 4 |
| BNY Mellon Center | Philadelphia | 54 | 1.4M | 1990 | $370.2M | EQC NINE PENN CENTER PROP | 6 |
| 1500-30 SPRING GARDEN ST | Philadelphia | 12 | 1.2M | 1948 | $76M | 1500 NET WORKS ASSOCIATES | 3 |
| Comcast Center | Philadelphia | 58 | 1.2M | 2007 | $361.7M | LIBERTY PROPERTY PHILA | 12 |
| 1717 ARCH ST | Philadelphia | 51 | 1.2M | 1989 | $232.7M | BRANDYWINE OPERATING | 0 |
| 1700-40 MARKET ST | Philadelphia | 32 | 1.2M | 1969 | $149.2M | CR 1700 PROPERTY OWNER LL | 7 |
| 2005 MARKET ST | Philadelphia | 40 | 1.2M | 1986 | $200.5M | COMMERCE SQUARE PARTNERS | 4 |
| 2001 MARKET ST | Philadelphia | 41 | 1.2M | 1991 | $185.2M | PHILA PLAZA PHAZE II | 4 |
| 1818-28 MARKET ST | Philadelphia | 40 | 1.1M | 1976 | $199.9M | SRI ELEVEN 1818 MARKET L | 3 |
| Comcast Technology Center | Philadelphia | 44 | 1.1M | 2016 | $327.6M | LIBERTY PROPERTY | 0 |
| 170 S INDEPENDENCE MALL W | Philadelphia | 12 | 1.1M | 1911 | $185.6M | KEYSTONE PROPERTY GROUP | 9 |
| 2970 MARKET ST | Philadelphia | 5 | 1.1M | 2008 | $368.1M | KIM SUB CIRA SQUARE LP | 2 |
| 508-32 WALNUT ST | Philadelphia | 20 | 987K | 1918 | $102.7M | KPG ONE WASHINGTON LLC | 2 |
| 1400 JOHN F KENNEDY BLVD | Philadelphia | — | 891.1K | 2015 | $136.8M | CITY OF PHILA | 7 |
| 1600-22 MARKET ST | Philadelphia | 39 | 860K | 1982 | $136.9M | AREP 1600 MARKET STREET L | 2 |
| 701-39 MARKET ST | Philadelphia | 5 | 845.2K | 1893 | $89M | INDEPENDENCE CENTER | 6 |
| 2301 MARKET ST | Philadelphia | 35 | 823.3K | 1916 | $95.9M | PECO | 3 |
| 150 N INDEPENDENCE MALL W | Philadelphia | 8 | 816.2K | 1976 | $121.2M | FEDERALRESERVEBANKOFPHILA | 2 |
| 100-20 N 18TH ST | Philadelphia | 34 | 803K | 1985 | $166.5M | TWO LOGAN SQUARE | 2 |
| 1835 MARKET ST | Philadelphia | 29 | 800.5K | 1985 | $91.6M | NG 1835 MARKET STREET LP | 0 |
| 1601-29 JOHN F KENNEDY BLVD | Philadelphia | 28 | 798.2K | 1928 | $97.1M | ONE PENN ASSOCIATES L P | 6 |
| 1601-23 MARKET ST | Philadelphia | 36 | 797.2K | 1970 | $50.7M | PA-1601 MARKET STREET LIM | 5 |
| Cira Centre | Philadelphia | 28 | 782.2K | 2005 | $261.8M | BRANDYWINE CIRA LP | 6 |
| 1901-17 MARKET ST | Philadelphia | 45 | 760.6K | 1988 | $274.5M | 1901 MARKET LLC | 2 |
| 123 S BROAD ST | Philadelphia | 25 | 760.2K | 1927 | $71.5M | 123 S BROAD PARTNERS LP | 0 |
| 1300 MARKET ST | Philadelphia | 7 | 756K | 1920 | $32.5M | 1300 MARKET OWNER LLC | 3 |
| 1101-11 MARKET ST | Philadelphia | 32 | 747.2K | 1984 | $124.7M | GIRARD ESTATE FEE | 3 |
| 130 N 18TH ST | Philadelphia | 30 | 735.6K | 1981 | $122M | OLS OFFICE PARTNERS L P | 4 |
| 1234 MARKET ST | Philadelphia | 20 | 723.8K | 1973 | $148.2M | SEPTA | 3 |
| 1801-21 MARKET ST | Philadelphia | 27 | 708.8K | 1982 | $77.4M | TEN PENN CENTER LOWER UNIT ASSOCIATES LL | 4 |
| 4499 S BROAD ST | Philadelphia | — | 700K | 1895 | $20.5M | PHILADELPHIA AUTHORTY FOR | 0 |
| 2000-24 MARKET ST | Philadelphia | 29 | 696.3K | 1973 | $45.5M | 2000 MARKET LLC | 2 |
| 1601 CHESTNUT ST | Philadelphia | 21 | 694.4K | 1990 | $109.2M | OFFICES AT TWO LIBERTY PL | 0 |
| 819-41 CHESTNUT ST | Philadelphia | 12 | 693K | 1926 | $98M | HCP 833 CHESTNUT LLC | 1 |
| 1622-50 ARCH ST | Philadelphia | 27 | 689K | 1975 | $69.4M | 1650 ARCH PARTNERS LP | 1 |
| 22-34 S 17TH ST | Philadelphia | 20 | 659.3K | 1975 | $112.2M | 30 SOUTH 17 PROPERTY OWNE | 5 |
| 2400 MARKET ST | Philadelphia | 11 | 600.5K | 1929 | $150.9M | 2400 MARKET VII LP | 1 |
| 101 N INDEPENDENCE MALL E | Philadelphia | 11 | 582.1K | 1973 | $43.1M | MREF 401 LP | 0 |
| 300-30 SPRING GARDEN ST | Philadelphia | — | 577.8K | 1974 | $50.7M | UNITED STATES OF AMERICA | 0 |
Building names are editorial labels for well-known towers; all facts are the county's. Assessed values are the taxable-roll figures — not market prices.
Owner entities grouped by mailing address
Largest office landlords
| Owner | Mailing address | Properties | Floor area | Assessed | Tenants |
|---|---|---|---|---|---|
| 3020 MARKET OPERATING LP · 4 entities | RADNOR, PA | 4 | 2.9M sq ft | $570M | 7 |
| NG 1500 MARKET ST LLC · 4 entities | PHILADELPHIA, PA | 4 | 2.6M sq ft | $155.9M | 8 |
| 1528 WALNUT LIMITED PARTN · 9 entities | PHILADELPHIA, PA | 9 | 2.5M sq ft | $377.2M | 8 |
| CITY OF PHILA · 3 entities | PHILADELPHIA, PA | 9 | 1.9M sq ft | $228.4M | 35 |
| EQC NINE PENN CENTER PROP · 3 entities | PHILADELPHIA, PA | 3 | 1.5M sq ft | $372.5M | 6 |
| L/S 26TH STREET NORTH LP · 2 entities | PHILADELPHIA, PA | 2 | 1.3M sq ft | $368.5M | 12 |
| 123 S BROAD PARTNERS LP · 5 entities | PHILADELPHIA, PA | 5 | 1.2M sq ft | $123.1M | 5 |
| TWO LIBERTY PLACE LP · 4 entities | PHILADELPHIA, PA | 5 | 1.2M sq ft | $205.5M | 3 |
| BROAD ONE L P · 2 entities | PHILADELPHIA, PA | 2 | 964.7K sq ft | $153.9M | 8 |
Commercial property is usually held one building per entity, so the roll shows many owners where there is one sponsor. Grouping owner entities by the mailing address the county sends the tax bill to is what reveals the holding — evidence of common ownership, not proof of it, since a shared mailbox can also be a law firm, an accountant or a tax servicer. Each page says which case it looks like. Counted by building, not parcel.
Federal lease inventory — actual rent paid
The one rent figure that is public
Across 38 active federal office leases in Miami-Dade, the median rent is $30.54 per rentable square foot per year, with the middle half between $28 and $34. Asking rents are proprietary; the federal government publishes what it actually pays, lease by lease, and those leases appear on the building pages they belong to. One tenant is not a market — federal space is often agency-fitted and leased on government terms.
Every federal office lease in Florida, and when it expires →
Whole-building transfers over $1M
Recently sold office buildings
| Building | Submarket | Sold | Price | $/sq ft | Sq ft |
|---|---|---|---|---|---|
| 2000 KUBACH RD | Philadelphia | Jun 2026 | $14,500,000 | $123 | 118K |
| 3100 PENROSE FERRY RD | Philadelphia | Jun 2026 | $8,500,000 | $650 | 13.1K |
| 2361-73 WELSH RD | Philadelphia | Jun 2026 | $8,000,000 | $156 | 51.3K |
| 731 S BROAD ST | Philadelphia | May 2026 | $1,500,000 | $381 | 3.9K |
| 711-19 N 7TH ST | Philadelphia | Apr 2026 | $2,150,000 | $248 | 8.7K |
| 428-36 WALNUT ST | Philadelphia | Apr 2026 | $30,000,000 | $83 | 361.5K |
| 726 CHESTNUT ST | Philadelphia | Apr 2026 | $1,300,000 | $106 | 12.3K |
| 735 SANSOM ST | Philadelphia | Mar 2026 | $1,200,000 | $262 | 4.6K |
| 211 S 17TH ST | Philadelphia | Feb 2026 | $1,700,000 | $714 | 2.4K |
| 1619-21 WALNUT ST | Philadelphia | Jan 2026 | $5,230,000 | $123 | 42.6K |
| 5 CRESCENT DR | Philadelphia | Jan 2026 | $52,000,000 | $220 | 236.8K |
| 600 BRENNA WALK | Philadelphia | Dec 2025 | $1,180,000 | $452 | 2.6K |
| 8400A E ROOSEVELT BLVD | Philadelphia | Dec 2025 | $3,000,000 | $118 | 25.3K |
| 221 CHESTNUT ST | Philadelphia | Dec 2025 | $2,125,000 | $165 | 12.8K |
| 602 BRENNA WALK | Philadelphia | Nov 2025 | $1,024,449 | $401 | 2.6K |
| 1917 WELSH RD | Philadelphia | Nov 2025 | $1,800,000 | $161 | 11.2K |
| 1108 CHESTNUT ST | Philadelphia | Oct 2025 | $5,550,000 | $198 | 28K |
| 4401 S BROAD ST | Philadelphia | Oct 2025 | $90,000,000 | $40541 | 2.2K |
| 1704 LOCUST ST | Philadelphia | Sep 2025 | $2,150,000 | $220 | 9.8K |
| 2000-24 MARKET ST | Philadelphia | Aug 2025 | $45,500,000 | $65 | 696.3K |
Countywide
Office stock by city
| City | Office buildings | Floor area | Assessed | Active tenants |
|---|
Data provenance — public records only
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami-Dade County Property Appraiser — recorded sale — The last recorded transfer price and date for the parcel, from the county's public property point view.
- Florida Department of Revenue — Sale Data File — Every transfer in the current roll period with the property appraiser's sale qualification code, vacant/improved code, multi-parcel flag and the clerk's recording reference.
- U.S. General Services Administration — lease inventory — Active federal leases published monthly: annual rent actually paid, rentable square feet, effective and expiration dates, termination right, renewal options remaining and the lessor's name.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Dataset updated . Philadelphia is one metro of the office-intelligence census; each additional one is a data binding to another jurisdiction's records, not a new build.