location approximate size ( sq . ft. ) segment majority owned or leased .

Table: location approximatesize ( sq . ft. ) segment majorityowned orleased hamilton new zealand 96000 global institutional global industrial owned calgary alberta canada 94000 global energy owned kwinana australia 87000 global institutional global industrial owned revesby australia 87000 global institutional global industrial owned yangsan korea 85000 global energy global industrial owned cisterna italy 80000 global industrial owned rovigo italy 77000 global institutional owned cuautitlan mexico 76000 global institutional global industrial owned barueri brazil 75000 global institutional global industrial leased mullingar ireland 74000 global institutional global industrial leased mosta malta 73000 global institutional leased

generally , our manufacturing facilities are adequate to meet our existing in-house production needs . we continue to invest in our plant sites to maintain viable operations and to add capacity as necessary to meet business imperatives . most of our manufacturing plants also serve as distribution centers . in addition , we operate distribution centers around the world , most of which are leased , and utilize third party logistics service providers to facilitate the distribution of our products and services . at year end 2016 ecolab 2019s corporate headquarters was comprised of three adjacent multi-storied buildings located in downtown st . paul , minnesota . the main 19-story building was constructed to our specifications and is leased through june 30 , 2018 . the second building is leased through 2019 . the company intends to vacate the current leased buildings in 2018 . the third building is owned . ecolab acquired the 17-story north tower from the travelers indemnity company in downtown st . paul , minnesota on august 4 , 2015 . this building became the corporate headquarters in 2017 . a 90 acre campus in eagan , minnesota is owned and provides for future growth . the eagan facility houses a significant research and development center , a data center and training facilities as well as several of our administrative functions . we also have a significant business presence in naperville , illinois , where our water and paper operating segment maintain their principal administrative offices and research center . as discussed in part ii , item 8 , note 6 , 201cdebt and interest 201d of this form 10-k , the company acquired the beneficial interest in the trust owning these facilities during 2015 . our energy operating segment maintains administrative and research facilities in sugar land , texas and additional research facilities in fresno , texas . in december 2013 , we announced the construction of a new 133000 square-foot headquarters building adjacent to the existing sugar land operations which was completed in early 2016 and renovation of the existing 45000 square-foot research facilities in sugar land . significant regional administrative and/or research facilities are located in leiden , netherlands , campinas , brazil , and pune , india , which we own , and in monheim , germany , singapore , shanghai , china , and zurich , switzerland , which we lease . we also have a network of small leased sales offices in the united states and , to a lesser extent , in other parts of the world . item 3 . legal proceedings . discussion of legal proceedings is incorporated by reference from part ii , item 8 , note 15 , 201ccommitments and contingencies , 201d of this form 10-k and should be considered an integral part of part i , item 3 , 201clegal proceedings . 201d other environmental-related legal proceedings are discussed at part i , item 1 ( c ) above , under the heading 201cenvironmental and regulatory considerations 201d and is incorporated herein by reference . item 4 . mine safety disclosures . not applicable. .

Question: how many square feet are leased by the company?
Answer: 222000
Calculation: add(add(75000, 74000), 73000)