A new primary suite, an additional bedroom for a growing family, or a second-story bedroom that finally separates sleeping space from the rest of the home — bedroom additions are among the most life-changing projects we deliver. DG Custom Construction & Electric designs and builds bedroom additions across Pasadena, Altadena, Sherman Oaks, Malibu, and Los Angeles with the structural discipline, architectural consistency, and electrical integration required to make a new bedroom feel like original construction.
Sleeping-space additions are often the single project that keeps a family in a home they otherwise would have sold. A third bedroom, a proper primary suite, or a teenager-appropriate space for a growing child can extend the livable life of a home by a decade or more — and add resale value when the time eventually comes.
Types of Bedroom Additions We Build
Primary Suite Additions
The largest and most design-intensive bedroom addition. A true primary suite includes the bedroom itself, an ensuite bathroom, a walk-in closet, and often a seating area or reading nook. We design primary suites as coordinated projects rather than three separate rooms built together.Secondary Bedrooms
Additional children's bedrooms, guest rooms, or caretaker spaces. Smaller than a primary suite but still requiring careful design to match the existing home.Second-Story Additions
Adding a second story to a one-story home opens a wide range of bedroom configurations. Second-story additions are major structural projects requiring foundation analysis, stair design, and careful architectural matching.Detached Bedroom Suites (JADUs)
Under California Junior ADU rules, a detached or attached bedroom-plus-bath suite can sometimes be permitted as a JADU, opening options for in-law housing or teen-age privacy.Primary Suite Standards
A well-designed primary suite includes:
- A bedroom sized for a king bed plus nightstands with comfortable circulation — typically at least 14×14 feet.
- An ensuite bathroom with separate shower and tub, dual vanities when space allows, and a water closet with its own door.
- A walk-in closet sized for the users — ideally with built-in drawers, hanging doubles, and shoe storage, not a single rod.
- Abundant natural light from multiple orientations when the site allows.
- Proper acoustic separation from the rest of the house — solid-core doors, insulated walls, and thoughtful HVAC zoning.
Structural Considerations
Bedroom additions often cantilever into yards, extend across existing rooflines, or stack on top of single-story sections. Each scenario requires dedicated structural engineering. Ledger-board tie-ins, shared or independent foundations, matching wall heights, and consistent roof geometry are where experienced general contractors separate themselves from crews who have never built above an existing room.
Electrical, HVAC, and System Integration
Bedrooms are more wired than they used to be. Modern bedroom additions include multiple circuits, layered lighting (ambient, reading, accent), ceiling-fan-rated boxes, USB outlets at nightstand locations, smart-thermostat integration, and pre-wired structured cabling for TVs, networking, and security. We plan these during design, not after drywall.
HVAC for bedroom additions requires a load calculation. An existing HVAC system is often not sized to serve a new bedroom, especially for a primary suite. We either extend the existing system with properly sized ducts and returns, or install a dedicated mini-split zone for the new space.
Design Consistency with the Original Home
A well-done bedroom addition reads as part of the original house — from the street, from inside, and on a real estate listing sheet. We match roof pitches, eave depths, siding materials, window proportions, and interior trim profiles. Where the existing home is a Craftsman in Pasadena or a Mid-Century in Sherman Oaks, we respect the original language rather than importing an incompatible style.
Timeline
Single-story bedroom additions typically take four to seven months from permit to final inspection. Primary suite additions run five to eight months. Second-story additions generally require seven to ten months due to the added structural and framing work.
Where We Build
DG Custom Construction & Electric Inc. serves homeowners and property owners across Pasadena, Altadena, Sherman Oaks, Malibu, and greater Los Angeles. If your project is in LA County, we would like to hear from you.