Can you put a bathroom in a basement?

Adding a bathroom to a basement living space is a frequent request but there are a couple of conditions to consider:

  • Septic Systems – Septic systems have specific requirements when adding a basement bathroom since the waste water is discharged with a pump and a separate dosing tank is required. There is often an additional requirement to enlarge the size of the septic field and both of these items combined can be extremely expensive and often take away this possibility.
  • Pump System – Most bathrooms create a significant amount of waste water and require the installation of a croc/pump system in the floor to handle the water, which is then eliminated by a specialty pump designed to handle the volume. The pump has to push the water up to the sewer line so that it can then run out to the street with the rest of the waste water. This also includes check valves so that water can’t come back into the system, dedicated circuits for the pump, and dedicated circuits for the alarm system so that the client is alerted to a failure. These pumps are laborious to install and require cutting up concrete and running all of the drain lines to the system below the concrete slab.
  • Exhaust Fans – Required by code, exhaust fans must be present for both powder rooms and full bathrooms alike. The size of the fan is critical to evacuate the air and the path to the exterior can also be challenging.