(c) If the floors of such rooms are lower than the surrounding ground the surrounding 
walls coming into direct contact with the soil—so far as no area abuts against them shall 
by approved means be likewise secured against the penetration of lateral earth-damp. 
4. Garrets shall only be used for the permanent abode of persons provided they 
are separated as far as the staircase from the adjacent parts of the roof space by incom 
bustible walls and ceilings placed in accordance with the regulations, and provided in 
addition that their ceiling is separated from the roof by an air space. 
§ 3.—Bedrooms. 
In rooms used for sleeping there shall be air space of at least 10 cubic metres (353 cubic 
feet), and floor space of at least 4 square metres (43 square feet) for every grown up person 
therein and 5 cubic metres (177 cubic feet) air space and 2 square metres (2U square feet) 
floor space for every child over 10 years. Children under 10 years of age are disregarded 
in calculating the necessary air and floor space. 
§ 4.—Family Dwellings. 
1. Dwellings for a common household of two or more persons (family dwellings) shall 
have at least one heatable room of at least 30 cubic metres (1,060 cubic feet) air space. 
2. Every independent dwelling shall be separated from the adjoining dwellings by 
walls at least half a brick thick or other fireproof walls without an opening which similarly 
preclude the penetration of sound. 
3. Every family dwelling shall have its own place for cooking. 
4. In rented houses which are in connection with the municipal sewage and water 
works there shall be on every floor at least one sink that can be conveniently reached, 
and a water tap. 
5. In every rented house there shall be wash-houses sufficient in size and number. 
6. —(a) For every four family dwellings or 20 persons there shall be at least one 
w.c. that can be locked and corresponds to the building regulations. 
(5) The w.c. shall not be more than one story away from the dwellings. 
II.—Police Regulations relating to Lodgers at Mannheim. 
(November 10, 1904.) 
Art. 1. Any person.intending to let bedrooms for hire shall first notify his intention at 
the Police Station of the ward in which his residence is situated, and furnish a statement 
of the number and sex of the lodgers he proposes to take, and of the accommodation to 
be provided for them. Notification shall also be given of any increase in the number of 
lodgers, of any decrease in the accommodation provided for them, or where other 
accommodation is allotted to them than that previously determined. 
Before any lodgers can be received, the proposed sleeping accommodation must be 
inspected by the police, and the lodging-house keeper be supplied with a certificate (called 
bedroom certificate). This certificate must be hung up permanently in every lodger’s 
bedroom. 
Art. 2. The arrival and departure of each lodger shall be notified to the police 
authorities within three days in accordance with the Notification Ordinance (Local Police 
Regulation of Dec. 23rd, 1901). 
The lodging-house keeper must also maintain a register of lodgers residing in the 
house in which must be entered the Christian name, surname, and birthplace of each 
lodger, together with the date of arrival and departure. 
Art. 3. The lodging-house keeper is responsible for the maintenance of cleanliness, 
good conduct and order in his house. 
The bedrooms shall be sufficiently ventilated and shall be cleaned every day. 
The beds and other furniture shall always be kept clean and shall be renewed when 
necessary. 
Art. 4. Where lodgers are taken, the dwelling must be sufficiently large for the 
requirements of the family and the members of the household, and to allow of the sexes 
sleeping separately ; separate beds must be provided for all members of the household 
over 12 years of age, and not more than two persons under 12 years shall sleep in one bed. 
Kitchens, workrooms, workshops, &c., may not be let as sleeping rooms. 
Art. 5. The lodging-house keeper or any member of his household may not sleep in 
the same room with lodgers. Exceptions may be made in the case of adults by special 
permission of the local police. 
Art. 6. Rooms which can only be reached by passing through the living rooms, 
badrooms, workrooms or kitchens of the lodging-house keeper, or any member of his 
household, may not be let to lodgers.