What happens if one or two walls of a house collapse on Shabbat, and the house borders on a public area: Eruvin 94a-95a
Using the principle of "Pi Tikrah" to extend an imaginary wall downward from the edge of a roof, to create one or more walls for a house, if the walls collapse on Shabbat: Eruvin 94b-95a
Status of an un-walled pavillion in the middle of a Karmelit; invoking the principle of "Pi Tikrah" to extend an imaginary wall downward from the edge of the roof: Eruvin 25a-b, 90a, 94b; Succah 18b-19a
Rooves
What happens if a building's roof has one side abutting a public area: Eruvin 84b, 85a
Status of the rooves adjacent to one's own roof, if one of the proprietors sets up a ladder leading to his roof: Eruvin 89b
Status of the rooves adjacent to one's own roof, if one of the proprietors builds another floor atop his roof, and sets up an opening, or a wall, by his upper floor's entrance to the other rooves: Eruvin 89b-90a
Status of a large roof which is beside a small roof: Eruvin 92a
Status of a roof's gutter: Eruvin 99b
Status of Adjacent Houses
Houses which are adjacent and have a shared upper floor: Eruvin 95a
Areas outside houses
An area [Rechavah] behind a house which is enclosed, which does [not] have an entrance into the house: Eruvin 24a
If a building has an outcropping over water, may one draw water from the sea: Eruvin 87b-88a
If a building has an outcropping over water, may one pour water into the sea: Eruvin 88a
What happens if a building has two large outcroppings overhanging the sea, and a resident makes an arrangement permitting water-drawing from one of the outcroppings, but not from the other: Eruvin 84b, 85a, 87b, 88a
Status of a large shelf which juts out outside, below a window: Eruvin 98b
Pits and garbage heaps outside houses: Eruvin 8a, 99b