Home Additions in Tarzana and Encino: What Homeowners Should Know

Short answer: if you love your neighborhood but need more space, a home addition can be the right answer, and Tarzana and Encino have the larger lots that make additions practical. An addition always needs plans, engineering and permits. Here is what to know before you start.

Why additions are common in Tarzana and Encino

Tarzana has some of the most spacious lots in the San Fernando Valley, and many homes were built in the 1950s through the 1970s. In Encino, the flats south of Ventura Boulevard hold much of the classic ranch housing stock, while properties up in the Encino Hills tend to be larger estates. Both areas often have room to expand a kitchen, add a primary suite or convert a garage.

Types of additions

• Room addition (bump out): extends the footprint for a new bedroom, bathroom, office or family room.
• Second story addition: adds a whole new floor without taking yard space. It needs structural engineering.
• Primary suite addition: a new bedroom, bathroom and closet, often the most requested addition.
• Kitchen expansion: pushes the kitchen outward or opens it to the family room.
• Garage conversion: turns the garage into living space or an ADU.

What to check before you design

• Zoning and setbacks. Your lot limits how far you can build toward the property lines.
• Size limits. Many Los Angeles neighborhoods limit total floor area compared to lot size.
• Hillside and design rules. Some areas, especially hillside lots, have extra review.
• Structure and utilities. A good addition is planned around your existing foundation, roof, electrical panel and plumbing.
• Permits. You will need plans, plan check and inspections.

Permits in Tarzana and Encino

Both Tarzana and Encino are part of the City of Los Angeles, so addition permits go through LADBS. We prepare the plans, work with the engineer and manage plan check and inspections. For a quick overview of what triggers a permit, see our permit guide.

How an addition project runs

1. Discovery call and site visit
2. Design and drawings
3. Engineering and permits
4. Construction, from foundation to finish
5. Inspections and final walkthrough

Design and permits come first, then construction. A second story addition takes longer than a ground level room. We share a written schedule before we start.

Cost: what to expect

The cost of an addition depends on the type, site access and your finish selections. Second story additions cost more because of structural work. Our pricing includes labor and construction materials only, and finishes are determined by your selections. We give you a written estimate after we see the house and the lot. Our cost guide shows what moves the price for kitchens and bathrooms inside an addition.

Making the addition feel original

The best additions feel like they were always part of the house. We match rooflines, materials and finishes so the new space blends in with the old one.

Common questions

Is it cheaper to add on or to move?

In Los Angeles, adding on is often less expensive than buying a larger home once you count purchase price, closing costs, taxes and moving. We can run the numbers with you.

Can I live in my house during an addition?

Usually yes for ground level additions. For second story additions, many families move out for several months.

Who handles design and engineering?

We work with architects, designers and structural engineers and manage them for you.