Second-Story Additions · Woodland Hills
Second-Story Additions in Woodland Hills, CA
Engineered second stories that add bedrooms to a Woodland Hills home while keeping the yard, planned around postwar foundations, city floor area rules and valley heat.
- Licensed California general contractor
- Permits with LADBS
- Written, line-item estimates
- Design, engineering & construction
Woodland Hills, CA
Second-Story Additions for Woodland Hills Homeowners
Second-story additions in Woodland Hills make sense when the yard is already doing its job and the house needs more bedrooms. Adding a floor to a postwar single-story home is serious structural work, and we treat it that way: engineering first, then design, then LADBS permits and construction under one contract.
We coordinate the structural engineer, architect and energy consultant, plan how your household will manage during the build, and sequence the work so the house is weathertight again as quickly as possible once the roof comes off.
Local Knowledge
Building Up in Woodland Hills
Woodland Hills grew mostly in the 1950s and 1960s, so most candidate houses are single-story Ranch homes whose foundations were sized for one floor. Before we commit to a second story, a structural engineer evaluates the existing footings, the wall framing and the lateral system. The answer commonly includes new footings at key points and new shear walls on the first floor.
Neighborhood context matters as much as structure. In tracts like Woodland West, where horizontal Contemporary Ranch homes line curving streets, a full two-story box can look out of place. A partial second story set back from the street, or an upper floor over the bedroom or garage wing, often fits better. The Baseline Mansionization Ordinance applies to the combined floor area of both levels, so the upper floor must fit within the same lot-based cap.
Upper floors here also take the full force of summer sun. We specify generous roof insulation, radiant barriers where they help, shaded windows and a dedicated cooling zone upstairs so the bedrooms are comfortable at night.
What's Included
What's Included
- Structural evaluation of the existing foundation and framing before design begins
- Engineering for new footings, shear walls, beams and a new floor system
- Architectural coordination for massing, stair placement and matching exterior details
- LADBS plan check, permits and every required inspection
- Roof removal, temporary weather protection and a fast dry-in of the new level
- Insulation, windows and a separate HVAC zone for the upper floor
For the full scope, process and options, see our main second-story additions page, or browse everything we build on our Woodland Hills service area page.
Planning Considerations
Second-Story Questions to Settle Early
Where the stair goes
A new staircase takes floor space out of the first story, and in a Ranch floor plan it rarely drops in cleanly. Common solutions include giving up a small bedroom, borrowing part of a wide hallway, or building a stair within a small ground-floor addition. We test these options in plan before design goes further, because the stair location drives the whole upstairs layout.
Seismic upgrades come with the project
The 1994 Northridge earthquake produced the strongest ground motions ever instrumentally recorded in an urban setting in North America, and houses here lived through it. When a second story adds weight, the engineer designs the structure to current seismic standards, which usually means hold-downs, new shear walls and anchor bolts where the original framing lacked them. That work makes the first floor safer as well.
Moving out for part of the build
Once the roof comes off, living in the house is usually impractical for a stretch of the project. Rooms below the new floor lose their ceilings, and utilities are interrupted as systems are rerouted. We give you a clear schedule for that phase so you can arrange a rental or a stay with family around real dates.
Why Choose Us
Why Woodland Hills Homeowners Choose Simply Construction
Contracts Written the Way California Law Requires
California caps a home improvement down payment at $1,000 or 10 percent of the contract price, whichever is less, and after that a contractor may only bill for work completed or materials delivered. Our contracts follow that structure: a line-item scope, a payment schedule tied to finished milestones, and written change orders before any extra work begins. You always know what you are paying for and why.
Permits Handled With LADBS
Most delays on large residential projects start at the permit counter. We prepare the drawing set, coordinate structural and Title 24 energy calculations, answer plan-check comments and schedule inspections with LADBS, so you are not the one chasing corrections. For ADUs, state law requires the agency to act on a complete application within 60 days, and a complete, well-coordinated submittal is what starts that clock.
Care for Your Street and Your Neighbors
Large projects happen next door to people who live there. We plan staging, dumpster placement, deliveries and working hours around Woodland Hills rules, keep the site secured at the end of each day, and give you notice before loud or disruptive phases such as demolition, concrete pours or crane lifts, so you can give your neighbors a heads-up too.
More in Woodland Hills
Other Services in Woodland Hills
Nearby
Second-Story Additions Near Woodland Hills
FAQ
Second-Story Additions in Woodland Hills: Common Questions
Can my Woodland Hills house support a second story?
Many can, with reinforcement. A structural engineer checks the existing footings, framing and lateral bracing, and usually specifies new footings and shear walls where the new loads come down. Houses with significant foundation cracking or past settlement may need more extensive work. We get that assessment done before design, so the budget reflects what the structure actually needs.
Is there a height limit for a second story?
Yes. Height limits depend on zoning and on whether the parcel is mapped as hillside, where the city measures height from a defined grade point. We confirm the limits for your parcel from city records before design and use them to set ceiling heights and roof pitch, so the addition fits both the rules and the street.
How long does a second-story addition take?
Duration depends on size, engineering complexity and how quickly plan check corrections are resolved, so we give you a schedule after design rather than a guess up front. The sequence is predictable: structural work below, framing and dry-in above, then systems, insulation, drywall and finishes. You get updates at each stage.
Start Your Project
Planning a Second Story in Woodland Hills?
Tell us about your property and goals. We will walk the site, flag anything LADBS will care about, and give you a written, line-item estimate.
Licensed California General Contractor · CSLB [CSLB LICENSE # PLACEHOLDER]