Can the Toilet Pit Be Moved

Whether the toilet pit can be moved needs to be judged based on specific circumstances and cannot be generalized.

Legal Regulation Aspect

According to the "Residential Design Code" GB 50096 - 2011, bathrooms should not be directly arranged above the bedrooms, living rooms (halls), kitchens, and dining rooms of lower-floor occupants. At the same time, the "Measures for the Interior Decoration and Renovation of Residential Buildings" explicitly prohibits converting rooms or balconies without waterproof requirements into bathrooms. If the new location involves the above-mentioned areas or lacks waterproof conditions, moving the toilet is an illegal act. Generally speaking, if the consent of neighbors and the property management is obtained and proper sewage and waterproofing measures are taken, moving the toilet is not illegal. However, if relevant consent is not obtained, or if problems such as water leakage and contamination of neighbors' rooms occur after moving, it may constitute an illegal act.

Technical Feasibility Aspect

• Sewage System Renovation: Toilets and other sanitary ware need to be connected to sewage pipes with a diameter of 110mm, and a slope (usually ≥ 2%) should be ensured to avoid blockages. If flat pipes are used for relocation or the floor is raised, poor drainage or even bad odors may occur due to insufficient slope. Raising the floor may also make the bathroom higher than other areas, posing a risk of water accumulation and backflow.
• Waterproofing Treatment: The new area needs to be re-waterproofed. The waterproofing height should be no less than 1.8 meters, and the number of coats should meet the standard (usually 2 - 3 coats). If the waterproofing is not adequate, it is prone to water leakage, damaging one's own decoration or affecting neighborly relations.
• Re-planning of Water Supply and Drainage Pipes: If the pipe layout is unreasonable, it may generate water flow noise. Improper sealing at the floor-penetrating points may also lead to condensed water dripping. It is necessary to reduce the impact through sound insulation materials and sealing treatments. For old houses, the sewage pipes are mostly made of cast iron, and the diameters and slopes are matched with the original house type. Once the relocation exceeds 10cm, it is very likely to cause poor sewage drainage, resulting in frequent blockages in mild cases and pipe rupture and water leakage in severe cases.

Compliant Renovation Plans

Locally expand the original bathroom. Without changing the main position, incorporate adjacent enclosed balconies or other areas with waterproof conditions into the bathroom. Ensure connection with the original sewage pipes and conduct a 48-hour closed-water test to verify the waterproofing effect. For minor toilet relocation, if the relocation distance is ≤ 30cm, an eccentric relocator can be used, and the floor slope should meet the drainage requirements. At the same time, proper sealing of pipe joints and waterproofing treatment should be carried out.