Winnetka Room Additions Ready for a Second Floor
Winnetka room additions sized from the first visit with one question in mind: can the footing be built now to carry a second floor later?
Could the footing under a new Winnetka room be sized now so a second floor can go on top later? It is a fair question, and the answer is yes if the decision comes before concrete is poured. The footing, the walls and the stair location all have to be planned for the added weight, and an engineer signs off on the design.
What gets sized up
A footing built for a single floor is narrower and shallower than a footing sized for a second floor. Building it larger costs concrete and steel now and saves a teardown later. Wall studs, hold-downs and the beam over any wide opening are chosen for the future load too. A space is left in the plan for a stair, so a staircase never has to cut through a finished room. Added capacity is limited to what the engineer specifies, which keeps the extra cost proportionate.
What stays open
The second floor still needs its own permit, plan check and height review when the day comes, and the rules in force then apply. Building the base for it commits nobody to building up. If an attached ADU is the later goal, it follows state ADU law, and the same strong base can carry that as well. Utility lines are located before any trench is dug, since a footing wider than the room needs reaches farther into the yard. Drawings show the stair opening as a dashed outline so nobody builds over it.
Room Additions in Winnetka: common questions
An addition built to grow keeps a second floor possible, while an attached ADU gives a separate home right away. They can be combined, with a future unit placed above a room. In Winnetka we draw the footprint of each and show where a stair or entrance would fit.
LADBS reviews the plans for a building permit, and the trades take their own permits. Plans for a room built to carry more load include the engineer's calculations. Putting them together with the drawings is our work.
Yes when the house, or a new base built for it, can carry the weight. An engineer checks the walls and foundation, and zoning limits on height are read for the parcel. Planning the footing now keeps the later work simpler.
Room Additions in other cities
More we build in Winnetka
Start your room additions in Winnetka
Tell us about the property and the project. We reply with what it involves and how we would price it.