The loft is an attic on the upper level of the Kent Farm barn. Jonathan Kent built the loft for his adopted son Clark, calling it Clark's "Fortress of Solitude" — a place for him to study and think. Clark Kent often spends more time in the loft than in his actual house.
The loft is built at one side of the upper level of the Kent barn, accessed by a two-flight wooden staircase and a small intermediate deck. It features a couch, a desk, a hammock and bookcases. Clark is usually seen either doing homework, reading, or having the occasional make-out session with the girl of his romance.
The loft also housed Clark's telescope, which he used for stargazing and frequently also to spy on Lana Lang at her aunt's house from across the farm until Lana moved to live at Chloe Sullivan's house in late 2002. The telescope broke in the spring of 2006 and was packed away.31st century, the loft has been renovated along with all the barn and constructed with metal walls. It has also been updated with modern technology like robots and computers with hologram touch screens. It is used as the Legion Safe House #47.
- Season One: Pilot, Metamorphosis, Shimmer, Stray, Drone, Obscura, Tempest
- Season Two: Calling, Skinwalker, Insurgence
- Season Three: Slumber, Relic, Covenant
- Season Four: Devoted, Pariah
- Season Five: Mortal, Hidden, Lockdown, Reckoning, Hypnotic, Fragile, Oracle, Vessel
- Season Six: Wither, Crimson
- Season Seven: Kara, Fierce, Wrath
- Season Eight: Odyssey, Instinct, Bloodline, Abyss, Bride, Legion, Requiem, Doomsday.
- Season Nine: Kandor, Pandora, Persuasion, Escape, Hostage.
- Season Ten: Lazarus, Supergirl, Homecoming, Harvest, Ambush, Abandoned, Luthor, Collateral, Beacon, Masquerade, Scion, Kent , Finale, Part 1
- Season Eleven: Argo
- The loft was where Clark and Chloe both had their very first kiss in eighth grade, after Clark showed Chloe around the farm and fetched her a copy of her favorite book Tales of the Weird & Unexplained.
- On his sixteenth birthday, Clark and Lana Lang shared their first kiss in the loft. He also almost had sex with Alicia Baker, then Lana, then Simone, in the loft as well.
- Because the barn is usually not locked, there is no access control to the loft, so Clark's friends often just walk straight in and surprise him. This can cause embarrassing problems in Clark's personal life — Chloe surprised Clark while he was peeping on Lana, walked in on him kissing Lana, and Lana walked in on him making out with Simone.
- Clark and Lana first attempted to make love in the loft, but they were interrupted by an attack by criminal metahumans. (Mortal)
- The loft is a special meeting place for Lana and Clark and the last place they shared their last "I love you" before Lana left Smallville for good. (Requiem)
- When Clark is upset, he has been known to sit on the floor and brood while throwing a ball against the wall (e.g. after Alicia Baker died in Pariah, and after Lex and Lana got together in Wither).
- The loft aspect of the barn was something that was created specifically for the show, and was not originally part of Superman's comic history. However, writers such as Geoff Johns and Mark Weid have integrated the loft into Clark's comic history. Furthermore, the loft appeared in a Teen Titans issue, as the location of Superboy and Wonder Girl's first time making love.
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