Claremont ADU Construction, Hall Planned to the Inch
A Claremont ADU hall planned to the inch: wide enough for code and furniture, switched at both ends, with a shallow niche borrowed from the older main house.
Every foot of hallway inside a Claremont backyard unit is floor where nobody sits or sleeps, so we keep the hall short and make it earn its place. It has to be wide enough to satisfy the code and to carry a mattress or a sofa past the turn, lit from either end, and lined with doors that swing into their own rooms. A tight hall leaves more of a small footprint for living.
Width, doors and light
A hall in a dwelling needs at least 36 inches of clear width, and we draw a little more where it turns, since a box spring has to clear the corner. Bedroom and bath doors open into their rooms, never across the hall, and a pocket door can serve a closet where a swinging one would get in the way. A switch at each end controls the hall light, so nobody crosses it in the dark. The alarm for the sleeping area mounts on the hall ceiling, wired to sound with the rest.
A niche borrowed from the older house
Halls in older houses often held a small built-in: a telephone niche with an arched top, a linen cabinet with glass doors, a recessed shelf by the bathroom. If the main house keeps one, the unit's hall can carry a shallow version of it, framed between studs on an inside wall so it costs no floor at all. Trim around it takes the profile of the house's casing. The hall then belongs to the same family as the house, and the original niche in the main house is left untouched.
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ADU Construction in Claremont: common questions
State law sets when a water or sewer provider can ask for a separate connection. A unit made inside an existing building generally cannot be required to have one. A new detached unit can, and the provider's answer decides whether the unit taps the house's service or gets its own line from the street, which we confirm before the trench is drawn.
Often, though a garage's width can crowd a hall. In a narrow garage, a hall running beside a bedroom may leave too little width for both, so the rooms can be lined up with doors opening from one into the next, and the hall disappears. The slab, walls and roof framing are checked before that plan is fixed.
The bars between the panes tell a lot. Wood sash glazed the old way holds its glass with putty, which leaves a sloped bevel on the outside of each bar. Window makers offer a putty-profile grille that copies that bevel, so where the main house has divided panes, the unit's windows can show the same slanted edge to the yard, with bars spaced to match.
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