Building mix: north-central homes with older chajjas, AC shelves, pipe ledges, and compact balcony floors
Outdoor conditions: RT Nagar pigeon control net has to account for dust, shaded ledges, dry balcony corners, and seasonal rain make droppings stick harder when the sitting point stays open.
Common layout cue: Around RT Nagar, common measures include balcony front, side return, AC platform, window shade, pipe pocket, and upper beam. Photos help judge height, access, and fixing surface before visit planning.