SB 9 Lot Split in Los Angeles (2026): Rules, Eligibility, Process and Costs
An SB 9 lot split can turn one LA lot into two with up to four homes. See 2026 rules, AB 1061 and SB 450 changes, eligibility, the city process and costs.
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Planning an ADU or garage conversion in Los Angeles or Ventura County? These guides cover costs, permits, plans and rental income.

An SB 9 lot split can turn one LA lot into two with up to four homes. See 2026 rules, AB 1061 and SB 450 changes, eligibility, the city process and costs.
Read the guideADU floor plans by size for 2026: what really fits in 400, 500, 800 and 1,200 sq ft, pre-approved vs custom plans, and how...
Read the guideElectrical panel upgrade cost in Los Angeles: a permitted 200-amp service upgrade typically runs $8,000 and up in 2026. See what's included, LADWP and...
Read the guideTurning a basement into a legal rental starts long before demo day. The ADU permitting process decides whether your ceiling height, zoning and permit...
Read the guideMost homeowners can picture an ADU in their garage, but few know how to divide the space so it works. Good 2-car garage ADU...
Read the guideBefore you list a backyard unit, the real question is whether it can rent legally and keep paying for itself. These ADU rental profit...
Read the guideAn ADU has to work as a full home inside a small footprint, so every interior choice needs to earn its place. The right...
Read the guideA permitted garage conversion to an ADU in LA typically runs $140K to $200K in 2026. Costs by garage size, permits, rent potential and...
Read the guideGrant money can offset part of an ADU budget, but only if you qualify and apply with the right paperwork. Knowing how to get...
Read the guideWhen homeowners ask RnD Builders about ADU versus home addition which is best, we start with two questions. Who will use the new space,...
Read the guideThe 5 renovations with the best resale ROI in Southern California — ADUs, kitchens, bathrooms, curb appeal and primary suites, with 2026 costs.
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This blog answers the questions homeowners ask us most. For example, you can read what a kitchen or bathroom remodel costs, how long permits take, and which design choices hold up over time. Because each guide comes from real jobs in Ventura County and Los Angeles, the advice reflects what we see on site. As a result, you can compare real numbers before you call a contractor.
Browse the blog by topic with the filters at the top of this page. Then, if a guide makes you want to see how we work, visit our remodeling services. Before you hire any contractor, check the California contractor license (ours is CA License #1081122).

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