Service area · Sherman Oaks
Room Additions in Sherman Oaks
Sherman Oaks divides at Ventura Boulevard. North of it, the Valley flats: regular lots, post-war ranch houses, straightforward construction. South of it, the Santa Monica Mountains foothills, where the same addition becomes a hillside project with a different regulatory framework and a different budget.
Local conditions
What Sherman Oaks homes are built like
The flats north of Ventura are dominated by 1940s and 1950s ranch homes — single story, low-slung, generally three bedrooms and one or two baths on lots with real backyards. South of Ventura the terrain rises into winding streets with a mix of mid-century homes, later contemporaries, and substantial recent construction on the better view parcels.
The Valley ranch house is close to an ideal addition candidate: simple roof structure, conventional framing, and a deep rear yard. Its weaknesses are consistent — original electrical service, undersized HVAC, single-pane windows, and a floor plan that closes the kitchen off from everything.
Sherman Oaks at a glance
- Permitting authority
- Sherman Oaks is within the City of Los Angeles, so permitting runs through LADBS. Properties south of Ventura Boulevard in the hillside areas may fall under the Baseline Hillside Ordinance, which limits floor area, height and grading based on lot slope — the same regulation that governs the Hollywood Hills. Whether your parcel is designated hillside is the first thing that needs establishing, because it changes what's buildable.
- Neighborhoods we work in
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- The flats north of Ventura toward Riverside Drive
- Chandler Estates
- The hillside streets south of Ventura Boulevard
- Longridge Estates
- The area around Woodcliff and Beverly Glen
On the ground
The ranch house rear addition
The most common project we build in Sherman Oaks is a rear addition to a 1950s ranch that adds a primary suite and opens the kitchen to a new family room. It works because these houses have the land for it, the roof structure extends easily, and the resulting floor plan is what buyers in this market actually want.
The two items that consistently need attention are the electrical panel — original service here won't carry an addition plus current loads — and the HVAC, where the existing system is sized for the original square footage. Both are predictable, so we identify them at the estimate rather than mid-project.
Most requested here
What we build most often in Sherman Oaks
Straight answers
Sherman Oaks questions we get asked
Is my Sherman Oaks property considered hillside?
It depends on the parcel's slope and the city's designation, not simply on whether you're south of Ventura. We check the designation for your specific address before design, because hillside status changes the allowable floor area and height substantially.
How much can I add to a typical ranch house here?
On a standard flat lot north of Ventura there's usually meaningful room within lot coverage and setback limits — additions in the 400 to 800 sq ft range are common. The specific envelope depends on your zone and lot dimensions.
Should I add on or add a second story?
In the flats, building out is almost always cheaper and simpler, and the lots support it. Second stories make sense where the yard matters more than the money or where lot coverage limits are already reached. South of Ventura, hillside rules may push the decision one way or the other.
How does LADBS permitting compare to Burbank or Glendale?
LADBS handles a far larger volume, and timelines reflect that. The strongest lever we have is submittal quality — complete, correct drawings get through with fewer correction cycles, and correction cycles are what turn weeks into months.
Start here
Planning an addition in Sherman Oaks?
We'll come out, look at the house and the lot, tell you what Sherman Oaks's rules will actually allow, and put a written estimate in your hands. No charge and no obligation.
Call (626) 726-3989, or use the form and we'll get back to you — usually the same day.
We also serve: Pasadena, Glendale, Burbank, Beverly Hills, Hollywood Hills, Studio City, Woodland Hills, Northridge, Reseda, Santa Clarita, Thousand Oaks.
Free estimate in Sherman Oaks
Tell us about your project and we'll call you back — usually the same day.
Ready to talk about your addition?
Free in-home consultation and a written estimate at no cost.