If you rearrange the room thats extra. Ideally this area could be situated next to a bathroom or the kitchen so that plumbing points are close by. Pin By Germaine Ross On Keller Ideen Waschraum Laundry Room Decor Farmhouse Laundry Room Laundry Room Inspiration Tapware The amount you spend on tapware will largely depend upon your design preferences and budgetary constraints as they can range from as little as 50 to over 500. How much would it cost to build a laundry room . As there is only 1 bathroom and quite a lot of space in laundry were thinking of installing an extra toilet in there. Medium Cost 1000 to 5000 Most homeowners who are serious about adding a laundry room will remain within a medium-level budget. The average cost of adding a laundry room is around 6000. High enough to properly outfit the room with ample storage and features low enough to keep construction costs within reason. The average cost of adding a laundry room is around 6000. Click to see full answer