The Loyal Sisterhood of the Fireside Girls have five known buildings, with the possibility of more.
Fireside Girl Lodge[]
One building is in Downtown Danville, and is their official headquarters. Little is known about this building, apart that it is sparsely furnished, with logs as chairs. There is an emblem on top, and this building is old. ("Fireside Girl Jamboree") It also has a beehive. ("Bee Story") It has a recording studio that Candace used to record the audio version of the Fireside Girls Compendium Guide. ("Just Desserts") It has a trap door that leads to secret passage outside the lodge connected to a false stump, and is directly across the street from Doofenshmirtz Evil Incorporated. ("Night of the Living Pharmacists")
Fireside Girls Clubhouse[]
They also have a clubhouse in the woods which serves as the second meeting location for troop 46231. This clubhouse appears to be secret, with both defensive procedures and a secret knock for access. It has basic amenities, including a usable sink, bean bag chairs, and supplies, including water balloons. ("Isabella and the Temple of Sap")
Cupcake Factory[]
The third building is the Fireside Cupcake Factory, located on an island in the middle of the sea. They probably package the cupcakes here before selling them. ("Fireside Girl Jamboree")
Secret Bunker[]
The Fireside Girls have a bunker in a secret location where they keep the Fireside Girls Compendium Guide. This bunker has so far only been mentioned. ("Just Desserts")
Fireside Girls Annex[]
A small annex joined onto another building in an urban part of Danville. The second floor operates as a third meeting place for Troop 46231 when not at their lodge. It is the only seen Fireside Girls building to not use any kind of woodland or campfire theme. Of what little we see, it has a window overlooking the street, and inside is a lamp, desk, couch, and blue and white painting. The floor has dark teal carpeting with various geometric patterns, and the walls are painted green and beige. It only appeared once over the course of the show's run. ("Night of the Living Pharmacists")
Fireside Girls Mobile Tactical Headquarters[]
A small inflatable log cabin able to deployed anywhere. The interior, from what is able to be seen, contains a map of the world, a scale model of the Flynn-Fletcher's backyard, a telephone, a wall mounted lamp, and an unidentified lever, which presumably activates defense procedures. The exterior appears quite similar to the Clubhouse (mentioned above). It appears only once in the entirety of the show's course. ("It's No Picnic")