Examples of how the city's narrow lots were built up. 1. 169 Rue Saint-Jacques. 2. 23 Rue de l'Annonciation. 3. How a lot was built up. Diagrams reprinted courtesy of the Atelier Parisien d'Urbanisme. (a) A building on the street. The arrows indicate a tendency to expand into the courtyard. (b) A second building is gradually extended across the back of the lot and then along the sides. (c) The back and sides have been built up. Expansion into the courtyard follows. (d) Various sheds spring up in the courtyard.

a)

b)

c)

d)

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