"北広島駅西口整備へ、市が不動産会社と協定 来春着工" [City signs agreement with real estate company to develop west exit of Kitahiroshima Station; construction to begin next spring]. The Asahi Shimbun (in Japanese). March 31, 2021. Retrieved July 10, 2021.
"【日本ハム】新球場ファウルゾーン狭すぎ問題、来季はそのまま試合開催へ ２３年オフから改修へ" [[Nippon-Ham] Foul territory in new stadium too narrow; games to be held as is next season; renovations to begin in the 2023 off-season]. Sports Hochi (in Japanese). November 14, 2022. Retrieved January 12, 2023.
hokkaido-np.co.jp
dd.hokkaido-np.co.jp
"北広島市が日ハム誘致案 新球場構想" [Kitahiroshima attempts to lure Nippon Ham Baseball with its new ballpark concept]. Hokkaido Shimbun (in Japanese). December 20, 2016. Archived from the original on December 27, 2016. Retrieved July 9, 2021.
"札幌市、市外移転回避へ作戦変更 日ハムの新球場構想 用地探し急ぐ" [Sapporo changes strategy to avoid relocation out of city, hastens search for site for new baseball stadium for Nippon Ham]. Hokkaido Shimbun (in Japanese). December 21, 2016. Archived from the original on December 27, 2016. Retrieved July 9, 2021.
"日ハム、自前球場検討 本拠地移転、北大構内など候補" [Nippon Ham considers relocating its home stadium, Hokkaido University campus and other candidates]. Mainichi Shimbun (in Japanese). May 25, 2016. Archived from the original on August 30, 2016. Retrieved July 4, 2021.
Taniguchi, Takumi (December 22, 2022). "敷地は東京ドーム7個分 23年、北海道に日本ハム新球場中心の街が誕生" [A site the size of seven Tokyo Domes, in 2023, a town centered on the new Nippon Ham Stadium will open in Hokkaido]. Mainichi Shimbun (in Japanese). Retrieved January 24, 2023.
"日本ハム 自前の球場建設を検討 収益アップ目指" [Nippon Ham considers building its own stadium, aiming to increase profits]. NHK (in Japanese). May 24, 2016. Archived from the original on May 27, 2016. Retrieved July 4, 2021.
"日本ハム新球場、８年後完成目指し球団が建設検討" [Nippon Ham Baseball Team Considering Construction of New Stadium to be Completed in Eight Years]. Nikkan Sports (in Japanese). May 24, 2016. Retrieved June 30, 2021.
"日本ハム、札幌市の新球場２候補地に見解「岐路に」" [Nippon Ham's view on Sapporo's two proposed new stadium sites: "At a crossroads"]. Nikkan Sports (in Japanese). October 25, 2017. Retrieved July 9, 2021.
"【日本ハム】「エスコンフィールド北海道」竣工式 稲葉GM「65万人の思いや魂を引き継いで」" [[Nippon Ham] Construction completion ceremony for Es Con Field Hokkaido; GM Inaba: "Inherit the thoughts and spirits of 650,000 people"]. Nikkan Sports (in Japanese). January 5, 2023. Retrieved January 17, 2023.
"日本ハム新球場は世界初の球場内天然温泉、サウナ、宿泊施設完備" [The new Nippon Ham baseball stadium is equipped with the world's first natural hot spring, sauna, and lodging facilities inside the stadium]. Sports Nippon (in Japanese). December 21, 2021. Retrieved January 1, 2022.
nikkei.com
"真駒内公園に日ハム新球場、札幌市が正式提案" [Sapporo officially proposes new stadium for Nippon Ham at Makomanai Park]. The Nikkei (in Japanese). December 16, 2017. Retrieved July 9, 2021.
"北広島市に米国流「ボールパーク」 日本ハム23年開業" [U.S.-style 'ball park' to open in Kitahiroshima City; Nippon Ham to open in 2023]. The Nikkei (in Japanese). March 26, 2018. Retrieved July 9, 2021.
Uoyama, Yuji (March 24, 2022). "積雪や芝養生･･･大林組が磨く北国のスタジアム作り" [Snow and Turf Care... Obayashi refines stadium construction in northern Japan]. The Nikkei (in Japanese). Retrieved January 17, 2023.
"日ハム新球場近くに新駅建設へ、JR北海道と北広島市" [JR Hokkaido and Kitahiroshima to build a new station near the new stadium of Nippon Ham]. The Nikkei (in Japanese). December 11, 2019. Retrieved July 10, 2021.
"札幌市が日本ハムに新球場候補地提案…北大一部など２候補" [Sapporo proposes new baseball stadium sites to Nippon Ham...2 candidates including part of Hokkaido University]. Sankei Sports (in Japanese). April 13, 2017. Archived from the original on July 11, 2017. Retrieved July 9, 2021.
"日本ハム、２０２３年に新球場で開幕戦へ！ 楽天と主催権を異例〝トレード〟で実現" [Nippon-Ham, opening day at a new stadium in 2023! Unusual "trade" for hosting rights with Rakuten]. Sankei Sports (in Japanese). December 3, 2021. Retrieved January 1, 2022.
"日本ハム新球場「エスコンフィールド北海道」竣工式 川村球団社長が決意新た「これからがわれわれの本番」" [Nippon Ham's New Baseball Stadium "Es Con Field Hokkaido" Completion Ceremony: Team President Kawamura Reaffirms His Commitment: "Our Real Work Begins Now"]. Sankei Sports (in Japanese). January 6, 2023. Retrieved January 24, 2023.
sponichi.co.jp
"日本ハム 球団と本社、新球場で作業部会 １８年３月までに方向性" [Nippon Ham baseball team and parent company, new ballpark taskforce to have course of action by March 2018]. Sports Nippon (in Japanese). December 19, 2016. Retrieved July 9, 2021.
"12球団各球場で進むボールパーク化…日本ハム、ヤクルトは新球場ホテル併設計画" [Ball park conversions underway at each of the 12 teams' stadiums...Nippon Ham and Yakult plan to add hotels to their new stadiums]. Sports Nippon (in Japanese). September 1, 2020. Retrieved January 1, 2022.
"23年開業 日本ハム、夢の新球場 日本初開閉式の天然芝球場 既成概念を覆す構成とは――" [Opening in 2023, Japan's first retractable roof, natural grass stadium, Nippon Ham's new, dream baseball stadium defies conventional thinking]. Sports Nippon (in Japanese). March 29, 2020. Retrieved July 11, 2021.
"日本ハム 自前の球場建設を検討 収益アップ目指" [Nippon Ham considers building its own stadium, aiming to increase profits]. NHK (in Japanese). May 24, 2016. Archived from the original on May 27, 2016. Retrieved July 4, 2021.
"日ハム、自前球場検討 本拠地移転、北大構内など候補" [Nippon Ham considers relocating its home stadium, Hokkaido University campus and other candidates]. Mainichi Shimbun (in Japanese). May 25, 2016. Archived from the original on August 30, 2016. Retrieved July 4, 2021.
"北広島市が日ハム誘致案 新球場構想" [Kitahiroshima attempts to lure Nippon Ham Baseball with its new ballpark concept]. Hokkaido Shimbun (in Japanese). December 20, 2016. Archived from the original on December 27, 2016. Retrieved July 9, 2021.
"札幌市、市外移転回避へ作戦変更 日ハムの新球場構想 用地探し急ぐ" [Sapporo changes strategy to avoid relocation out of city, hastens search for site for new baseball stadium for Nippon Ham]. Hokkaido Shimbun (in Japanese). December 21, 2016. Archived from the original on December 27, 2016. Retrieved July 9, 2021.
"札幌市が日本ハムに新球場候補地提案…北大一部など２候補" [Sapporo proposes new baseball stadium sites to Nippon Ham...2 candidates including part of Hokkaido University]. Sankei Sports (in Japanese). April 13, 2017. Archived from the original on July 11, 2017. Retrieved July 9, 2021.
"日ハム新球場に大谷とダルビッシュにちなんだ「タワー・イレブン」…ホテルや温泉の特別エリア" ["Tower Eleven" named after Otani and Darvish at new Nippon Ham Baseball Stadium...special area for hotels and hot springs]. Yomiuri Shimbun (in Japanese). December 27, 2021. Retrieved January 1, 2022.
