Manhattan

Large commercial buildings in Union Square

Every office, retail and industrial building in Union Square with at least 35,000 square feet of that space, from the city's own tax lot records. Open one for its size, age, zoning and any space listed in it.

Buildings
57
Their floor area
6.8M SF
Largest
Merchants' Exchange Building

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Download these 57 buildings

Owner of record, size, floors, year built, zoning, estimated property tax, last sale, energy grade and nearest subway for every building on this list, as a CSV file for Excel or Google Sheets. Free with a Leasemark account.

City records and estimates, not availability: a building on the list is not a space for lease.

Average floor size is an estimate: total building floor area divided by its number of floors, rounded to the nearest 100 SF. Individual floors vary. These are building sizes, not available spaces.

  1. Merchants' Exchange Building, 114 Fifth AvenueOffice building with commercial space · 329K SF office · 18 floors · built 1909 · 4 min to 14 StAverage floor: about 19,500 SF
  2. 230 Park Avenue SouthOffice building with commercial space · 311K SF office · 13 floors · built 1900 · 3 min to 14 St-Union SqAverage floor: about 26,900 SF
  3. 35 Irving PlaceOffice building · 288K SF office · 12 floors · built 1909 · 2 min to 14 St-Union SqAverage floor: about 24,000 SF
  4. 215 Park Avenue SouthOffice building · 275K SF office · 20 floors · built 1910 · 3 min to 14 St-Union SqAverage floor: about 14,300 SF
  5. 44 East 14th StreetRetail building · 263K SF retail · 7 floors · built 1971 · 1 min to 14 St-Union SqAverage floor: about 37,500 SF
  6. Knickerbocker Building, 79 Fifth AvenueOffice building with commercial space · 256K SF office · 16 floors · built 1906 · 3 min to 14 St-Union SqAverage floor: about 17,000 SF
  7. 55 Fifth AvenueCommercial condominium · 252K SF office · 19 floors · built 1912 · 4 min to 14 St-Union SqAverage floor: about 13,800 SF
  8. 842 BroadwayRetail building · 227K SF retail · 6 floors · built 1998 · 1 min to 14 St-Union SqAverage floor: about 39,400 SF
  9. Stuyvesant Building, 100 Fifth AvenueCommercial condominium · 224K SF office · 19 floors · built 1906 · 3 min to 14 St-Union SqAverage floor: about 13,200 SF
  10. Everett Building, 200 Park Avenue SouthOffice building with commercial space · 224K SF office · 16 floors · built 1908 · 2 min to 14 St-Union SqAverage floor: about 14,800 SF
  11. 122 Fifth AvenueOffice building with commercial space · 223K SF office · 11 floors · built 1900 · 4 min to 14 StAverage floor: about 22,200 SF
  12. 124 East 14th StreetOffice building · 208K SF office · 22 floors · built 2020 · 2 min to 14 St-Union SqAverage floor: about 10,500 SF
  13. Roosevelt Building, 849 BroadwayOffice building · 208K SF office · 21 floors · built 1900 · 1 min to 14 St-Union SqAverage floor: about 10,400 SF
  14. 225 Park Avenue SouthOffice building with commercial space · 181K SF office · 19 floors · built 1910 · 3 min to 14 St-Union Sq
  15. 83 University PlaceOffice building with commercial space · 181K SF office · 11 floors · built 1906 · 3 min to 14 St-Union SqAverage floor: about 17,400 SF
  16. 21 Irving PlaceOffice building with commercial space · 155K SF office · 12 floors · built 1910 · 2 min to 14 St-Union SqAverage floor: about 13,800 SF
  17. 233 Park Avenue SouthOffice building with commercial space · 137K SF office · 12 floors · built 1909 · 4 min to 14 St-Union SqAverage floor: about 11,800 SF
  18. Judge Building, 110 Fifth AvenueOffice building with commercial space · 135K SF office · 11 floors · built 1890 · 4 min to 14 StAverage floor: about 13,500 SF
  19. 797 BroadwayOffice building with commercial space · 124K SF office · 12 floors · built 2019 · 3 min to 8 St-NYUAverage floor: about 12,400 SF
  20. 32 Union SquareOffice building with commercial space · 123K SF office · 12 floors · built 1903 · 1 min to 14 St-Union SqAverage floor: about 11,900 SF
  21. Van Beuren Building, 71 Fifth AvenueOffice building with commercial space · 122K SF office · 11 floors · built 1907 · 3 min to 14 St-Union SqAverage floor: about 12,000 SF
  22. 84 Fifth AvenueOffice building with commercial space · 118K SF office · 11 floors · built 1903 · 3 min to 6 AvAverage floor: about 12,000 SF
  23. 34 West 14th StreetOffice building with commercial space · 114K SF office · 5 floors · built 1930 · 2 min to 6 AvAverage floor: about 30,300 SF
  24. 60 Fifth AvenueOffice building · 114K SF office · 8 floors · built 1924 · 4 min to 6 AvAverage floor: about 14,200 SF
  25. 80 Fifth AvenueOffice building with commercial space · 111K SF office · 17 floors · built 1908 · 3 min to 6 AvAverage floor: about 7,500 SF
  26. 817 BroadwayOffice building with commercial space · 108K SF office · 14 floors · built 1898 · 2 min to 14 St-Union SqAverage floor: about 8,200 SF
  27. 26 West 17th StreetOffice building with commercial space · 101K SF office · 12 floors · built 1908 · 2 min to 14 StAverage floor: about 8,900 SF
  28. 30 Irving PlaceOffice building with commercial space · 97K SF office · 12 floors · built 1912 · 2 min to 14 St-Union SqAverage floor: about 8,600 SF
  29. Annin Building, 85 Fifth AvenueOffice building with commercial space · 95K SF office · 13 floors · built 1901 · 3 min to 14 St-Union SqAverage floor: about 7,900 SF
  30. 105 East 17th StreetOffice condominium · 91K SF office · 4 floors · built 1960 · 3 min to 14 St-Union SqAverage floor: about 22,800 SF
  31. 826 BroadwayOffice building with commercial space · 90K SF office · 11 floors · built 1902 · 2 min to 14 St-Union SqAverage floor: about 12,000 SF
  32. 17 Union SquareOffice building with commercial space · 82K SF office · 12 floors · built 1912 · 1 min to 14 St-Union SqAverage floor: about 7,300 SF
  33. 5 Union SquareOffice building with commercial space · 74K SF office · 8 floors · built 1900 · 1 min to 14 St-Union SqAverage floor: about 11,600 SF
  34. 50 West 17th StreetOffice building with commercial space · 67K SF office · 12 floors · built 1911 · 2 min to 14 StAverage floor: about 6,200 SF
  35. 41 Union SquareOffice building with commercial space · 66K SF office · 16 floors · built 1920 · 2 min to 14 St-Union SqAverage floor: about 4,700 SF
  36. 88 University PlaceOffice building with commercial space · 65K SF office · 11 floors · built 1906 · 3 min to 14 St-Union SqAverage floor: about 6,400 SF
  37. Parish Building, 860 BroadwayOffice building with commercial space · 65K SF office · 6 floors · built 1884 · 2 min to 14 St-Union SqAverage floor: about 12,600 SF
  38. 33 East 18th StreetOffice building with commercial space · 63K SF office · 10 floors · built 1900 · 3 min to 14 St-Union SqAverage floor: about 10,200 SF
  39. 118 Fifth AvenueOffice building with commercial space · 60K SF office · 11 floors · built 1906 · 4 min to 14 St-Union SqAverage floor: about 6,000 SF
  40. 101 Fifth AvenueOffice building with commercial space · 55K SF office · 11 floors · built 1909 · 3 min to 14 St-Union SqAverage floor: about 6,500 SF
  41. 116 East 16th StreetOffice building with commercial space · 52K SF office · 12 floors · built 1910 · 2 min to 14 St-Union SqAverage floor: about 5,400 SF
  42. 113 University PlaceOffice building with commercial space · 52K SF office · 11 floors · built 1940 · 2 min to 14 St-Union SqAverage floor: about 5,200 SF
  43. 87 Fifth AvenueOffice building with commercial space · 51K SF office · 11 floors · built 1902 · 3 min to 14 St-Union SqAverage floor: about 5,300 SF
  44. Century Building, 33 East 17th StreetRetail building · 50K SF retail · 7 floors · built 1881 · 2 min to 14 St-Union Sq
  45. 57 East 11th StreetOffice building with commercial space · 50K SF office · 11 floors · built 1903 · 3 min to 14 St-Union SqAverage floor: about 5,200 SF
  46. 44 Union SquareOffice building with commercial space · 46K SF office · 6 floors · built 1929 · 2 min to 14 St-Union SqAverage floor: about 11,700 SF
  47. Lincoln Building, 1 Union Square WestOffice building with commercial space · 46K SF office · 9 floors · built 1890 · 1 min to 14 St-Union SqAverage floor: about 5,700 SF
  48. 67 Irving PlaceOffice building with commercial space · 46K SF office · 12 floors · built 1910 · 4 min to 14 St-Union SqAverage floor: about 4,100 SF
  49. Ely Building, 37 East 18th StreetOffice building with commercial space · 45K SF office · 10 floors · built 1897 · 3 min to 14 St-Union SqAverage floor: about 6,700 SF
  50. 17 West 14th StreetRetail building · 41K SF retail · 2 floors · built 1929 · 2 min to 6 Av
  51. 18 East 16th StreetOffice building with commercial space · 38K SF office · 7 floors · built 1907 · 2 min to 14 St-Union SqAverage floor: about 6,400 SF
  52. 97 University PlaceOffice building with commercial space · 38K SF office · 10 floors · built 1900 · 3 min to 14 St-Union SqAverage floor: about 4,100 SF
  53. Geraldine Building, 5 East 16th StreetCommercial condominium · 37K SF office · 12 floors · built 1892 · 2 min to 14 St-Union SqAverage floor: about 3,700 SF
  54. 29 Union SquareOffice building with commercial space · 37K SF office · 5 floors · built 1959 · 1 min to 14 St-Union SqAverage floor: about 9,200 SF
  55. 836 BroadwayOffice building with commercial space · 37K SF office · 6 floors · built 1876 · 2 min to 14 St-Union SqAverage floor: about 9,500 SF
  56. 37 West 14th StreetOffice building with commercial space · 36K SF office · 5 floors · built 1906 · 1 min to 6 AvAverage floor: about 9,000 SF
  57. 72 Fifth AvenueCommercial condominium · 35K SF office · 7 floors · built 1920 · 4 min to 6 AvAverage floor: about 5,000 SF

Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16. Sizes count each building's largest use (office, retail or industrial). Boundaries are approximate: each tax lot counts toward one neighborhood only. Only buildings with a street number and a leasable commercial building class are included. Average floor sizes are shown only for buildings with at least 3 floors and at least 60% of their area in the largest use.

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