The manor is a massive structure, built with white stone that seemed to gleam silver at night, the property surrounded by a black gate and vast grounds that stretched to the edge of a meander in the Thames River. It was built in the Palladian style, bearing a strong resemblance to classical Greek and Roman temples with its soaring pillars, multiple staircases, strong, symmetrical lines and clean columns.
A courtyard with a long gravel road flanked by trees led up to the house and had a circular drive in front of it. Stone paths then spread out from there and led through a network of gardens. Low hedges ran alongside the paths, while high hedges covered the formal gardens. It included an Italian garden, the circle lined with statues of classical heroes and figures of myth, great historians and statesmen, and poets and playwrights such as Venus, Caesar, Herodotus, Thucydides, Aristotle, Ovid, Homer, Virgil and Sophocles. Also found here is a wood-and-glass greenhouse with a cupola on the roof, a circular black ornamental pond, a white marble bench next to it, and a large folly shaped like a Greek temple and made of plaster.
One path that wound around the side of the house led to a wing. It ended at a tall and narrow entrance, with a strange symbol was carved into the door, that led to a long, narrow staircase that led upward into the ballroom.
The grand ballroom had a great crystal chandelier shaped like a spider. The walls were dark blue, and the room had French windows running along the side, opening into arches of curved stone balconies, looking out over a view of the gardens, as well as the river and the city. During the masquerade ball thrown in 1878, automatons lined the walls like decorative suits of armor, wearing the livery of the Lightwood household and an ouroboros over its left breast.
The inside of the house itself, particularly the main wing, opened into a grand entryway floored with alternating squares of black and white marble. It had massive chandelier, high windows, long corridors with blue walls and dozens of gilt-framed etchings, and a massive curving staircase that led further up into the manor.
The library, which also served as Benedict Lightwood's office or study, is a big room with heavy curtains, green wallpaper, oil paintings of great ships of war, bookcases, a Persian rug, and a desk guarded by a guardian demon. Its wallpapers were ruined by Benedict during his last stages of astriola, where he had written sentences with large letters with his ichor.
In July 27, 1878, Benedict Lightwood threw a secret masquerade ball in the mansion to impress Mortmain. The party was attended by several demons and a number of Benedict's Nephilim friends. Nate Gray also attended the event and invited his "wife", Jessamine Lovelace. Tessa, Changed into Jessamine, Will, hiding behind his mask, and Magnus Bane, called by one of Camille's subjugates, came uninvited.
Approximately three months later, Benedict moved the household from Pimlico to Chiswick. There, he locked himself in his study for two weeks and underwent the last stage of his demon pox, transforming into a demonic worm. The demonic Benedict then escaped into the garden, devoured their servants and Rupert Blackthorn, and was later killed by the Shadowhunters of the London Institute. Much of the Italian garden was destroyed in the skirmish.