The lumbridge painting is an item that players can buy from Sir Renitee in White Knights' Castle for 2,000 coins, provided that they have have completed The Restless Ghost, Cook's Assistant, Sheep Shearer and Rune Mysteries.
It is used in the Quest Hall of a player-owned house (along with three teak planks) to build Lumbridge in the landscape painting hotspot. Doing so requires level 44 Construction, and grants 314 experience.
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