Modular lavatory assembly for a vehicle cabin, cabin of a vehicle and aircraft having a cabin and at least one modular lavatory arrangement

1. A modular lavatory assembly for a vehicle cabin, comprising:

a lavatory module having a housing having a lateral wall;

a toilet system having a toilet arranged in an inner space of the lavatory module; and

at least one service module having at least one service unit for personal use by a passenger and configured to be carried by the lateral wall,

wherein the at least one service module is attached to an outside of the housing along the lateral wall, wherein the housing encloses the inner space free from additional service modules,

wherein a first one of the at least one service module is positioned at a bottom edge of the lateral wall and comprises a width that tapers off from a bottom end to a top end of the first one of the at least one service module,

wherein a second one of the at least one service module is positioned at a top edge of the lateral wall and comprises a width that tapers off from a top end to a bottom end of the second one of the at least one service module,

wherein the lateral wall comprises at least a first recess and a second recess for accessing a first one and a second one of the at least one service unit of the first one and second one of the at least one service module, respectively, from an inside of the housing.

2. The modular lavatory assembly of claim 1 , wherein the at least one service module is waterless.

3. The modular lavatory assembly of claim 1 , wherein the inner space is free from a washbasin.

4. The modular lavatory assembly of claim 1 , wherein the at least one service module comprises a service unit of a group of service units, the group consisting of

a dispenser for wet wipes,

a dispenser for a hygiene spray,

a dispenser for a hygiene foam,

a dispenser for hygiene gel,

a dispenser for disinfectant,

a dispenser for cream, and

a waste bin.

5. The modular lavatory assembly of claim 1 , wherein the first one and second one of the at least one service modules are arranged at a vertical distance to each other, such that a gap for receiving a reclined backrest of a passenger seat arranged adjacent to the lavatory module is created.

6. The modular lavatory assembly of claim 1 , wherein at least one of the first one and second one of the at least one service module comprises a body and an insert slidably supported in the body and positionable in a use position and a maintenance position,

wherein the insert is fully inserted in the body and locked in the use position, and

wherein the insert is pulled out of the body in the maintenance position.

7. The modular lavatory assembly of claim 6 , wherein the use position and the maintenance position are distanced in a main extension direction of the lavatory module.

8. The modular lavatory assembly of claim 1 , wherein the lavatory module comprises a main extension direction, along which an access opening and a toilet are arranged.

9. The modular lavatory assembly of claim 1 ,

wherein the housing has a width in the range of 0.58 to 0.7 m.

10. A cabin of a vehicle, comprising:

at least one floor;

a plurality of passenger seats attached to the floor;

at least one modular lavatory assembly arranged on the floor adjacent to at least one of the plurality of passenger seats, the at least one module lavatory assembly comprising:

a lavatory module having a housing;

a toilet system having a toilet arranged in an inner space of the lavatory module; and

at least one service module having at least one service unit for personal use by a passenger,

wherein the at least one service module is attached to an outside of the housing,

wherein the housing encloses the inner space free from additional service modules, and

wherein the housing comprises at least one recess for accessing the at least one service unit of the at least one service module from an inside of the housing with the at least one service module being configured for providing access through the at least one recess, and

wherein the at least one service module comprises at least two service modules arranged at a vertical distance to each other, creating a gap therebetween, such that in one operational mode, a reclined backrest of one of the plurality of passenger seats is received in the gap.

11. An aircraft having a cabin according to claim 10 .