Blackhall Manor is a location in Point Lookout. The manor's sole inhabitant is Obadiah Blackhall.
According to Obadiah Blackhall, the mansion has been in his family for generations, dating back to long before the Great War, and is a "fine example of Victorian architecture". He intends to keep this tradition alive, staying in the estate until he dies or a swampfolk gets him.
The mansion opens up into a main lobby with a kitchen on the left. The kitchen has a counter against the wall, a refrigerator, a cabinet and door that leads back out to Point Lookout. There is a library on the right side of the hall where Obadiah sits. In the library, there is a staircase that ascends to the second floor. When in the main lobby, the last rooms at the end of the hall are a dining room on the right and a poll hall on the left. There is a stairway in the pool hall that leads down to the basement. The basement is a small concrete room decorated with swampfolk totems. There is headless creeper on a table that Obadiah uses for rituals.
Continuing down the hall from the main room is a stairway on the left (before the pool hall) which leads upstairs. The upstairs is a squared hallway with four bedrooms spread throughout as well as a bathroom. The first doorway on the right leads back to the library. The master bedroom is at the end of the hallway and has some wardrobes and a queen sized bed. There is also an Average locked safe in the wall.
- There is a locked safe in the northern bedroom on the second floor that contains a fair amount of random loot. It may include ammunition, caps, a Stealth Boy, a double-barrel shotgun, and a lever-action rifle. Opening and looting this safe (or any of the other contents of the Manor) will not make Obadiah Blackhall hostile.
- Very Easy locked footlocker in upstairs hall may contain another Stealth Boy.
- In the basement there is a dead creeper and a few shovels.
- There are 5 Cherry bombs upstairs.
- The door to the basement does not appear on the map.
- Outside Blackhall Manor are many dolls which signal swampfolk territory, although the only one in the house is already dead.
- This house may also be used as player housing since all beds are able to be slept in and you can safely store things in the house containers.
- The front door to Blackhall Manor is, from the outside, a set of double doors. However when inside the manor, it is just a single door leading back outside.
- The door to the basement does not appear unless you give the Krivbeknih to Obadiah.
- In the kitchen, there appears to be a faucet on the counter, yet there is no sink.
- Just south of the manor toward Dove Delta, there is an obelisk with a readable inscription marking the day that "Captain John Smith landed in the New World".
- The facade of Blackhall Manor is based on the architectural style of the Second Empire, originating in France between 1865 and 1880, noticed by the Mansard roofs and incorporation of wrought iron.
Blackhall Manor appears in the Fallout 3 add-on Point Lookout.
- Blackhall Manor was called Whitehill at a stage of its development; based on the name of its .nif file.