After the war, Harry transformed Grimmauld place into an orphange. A one where every one is well treated and cared for. His kids often played with the orphan kids. It was mostly for magical kids, it was also a home for Hogwarts students to go to for the holidays if they couldn't or didn't want to go back home. They organized little Quidditch competitons in the summer and "home schooled" them until Hogwarts. Molly, every Sunday lunch went to cook them all a wonderful feast as she was lonely, since all her kids had grown up. It was called the Orion (Orion Orphanage) after Sirius Orion Black. The rooms were transformed to bright and colourful amd it was over all a pleasant house/ best orphange ever :)