Generic plans

The layout of both houses and flats can be summarized on a generic basis,1 i.e. the allocation of minor and major zones for service spaces and habitable areas respectively. Broadly speaking, the minor zones are associated with stairs, bathrooms, kitchens, utility areas as well as small single bedrooms or studies, while major zones are made up of the living rooms and the larger bedrooms. If the assumption is made that all rooms shall be accessible from the common stairhall to avoid using habitable areas as passageways, plan variations are effectively limited for the smaller house to two basic forms. First is the 'Universal' plan (Figures 4.1« and 4.1b) and its modification for longfronted formation (Figures 4.1c and 4.1 d). With narrow-fronted, semidetached or terraced houses the stair can be placed across the house, allowing for a front living room of 4 500 mm. The artisan house of the turn of the century often had an entry door off the side passage between two houses. A shared access 900 mm wide, allowing for the party and external walls, gives a site width of

(a) Ground floor (b) First floor

Figure 4.1a and b Generic plans for houses: Universal plan

(a) Ground floor (b) First floor

Figure 4.1a and b Generic plans for houses: Universal plan

(d) First floor

Figures 4.1c and d Generic plans for houses: Turned universal plan

(d) First floor

Figures 4.1c and d Generic plans for houses: Turned universal plan

5 325 mm. If the entrance is on the front with terraced houses, the front room will be reduced to 3 500 mm (Figure 4.1e).

Second, for wider frontages, is the 'Double Fronted' plan and its wealth of central core layouts (Figures 4.2a-g). The Building Regulations are set out in Chapter 10. The minimum width of stair allowed is 800 mm, but if planned between walls a dimension of 900 mm is necessary to enable furniture to be negotiated to the first floor. A hallway of a similar dimension is also required and, allowing for a well and balustrade, a core dimension of 1 800 mm is needed.

Standard stairs are available off the peg which give a floor-to-floor height of 2 600 mm: 12 treads of 216 mm and overall going of 2 700 mm.

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