The Sol
- 345 SQ FT
- STUDIO | 1 BATH
- Turnkey Construction From $120,000
A Studio ADU, Thoughtfully Built
This 345-square-foot ADU floor plan speaks to homeowners who want more than square footage. We have built many small ADUs over the years, and one lesson keeps repeating itself: a studio succeeds when it avoids feeling improvised. This floor plan doesn’t use walls to create function and avoids the boxed-in feeling we see in many small ADUs.
We offer this plan as a proven foundation, not a fixed formula. The layout already meets approval requirements, but it leaves room for personal decisions. Clients often adjust finishes, systems, and upgrades as the project takes shape, and we help guide those choices based on what we know works well over time. The result feels intentional, balanced, and personal to the homeowner.
Interested in this build? Here’s a closer look at how we approach ADU construction in Los Angeles.
ADU Build Details
Building Envelope
We design the exterior shell of this ADU to support comfort you notice every day, using advanced insulation systems, architectural fiberglass or aluminum entry doors and window systems that perform reliably in Los Angeles climates. Our construction solutions support modern appliances and smart home upgrades with 125–200 amp electrical panel and exterior finishes like stucco that handle sun exposure and seasonal changes without constant maintenance. Roofing options such as cool roof shingles or tile help the structure age gracefully.
Interior Finishes
We choose interior finishes based on how people actually live in these spaces. Cabinetry needs to open smoothly, surfaces need to clean easily, and flooring needs to tolerate daily use without looking tired. For this 345-square-foot ADU floor plan, we rely on solid wood cabinetry with soft-close hardware, durable quartz or porcelain countertops, resilient flooring options, and solid-core interior doors. Our standard finish palette aims for longevity rather than trend-chasing. The materials hold their appearance over time and stay practical whether the ADU becomes a rental, a guest suite, or a full-time residence. You can shift finish levels to match your goals and budget without altering the approved layout or compromising the overall feel of the home.
Optional Upgrades
Optional upgrades allow this studio ADU to grow with how you plan to use it. Many homeowners enhance comfort with upgrades like higher-performance insulation, triple-pane window systems, or ducted mini-split heating and cooling for quieter, more consistent temperature control. Others focus on long-term flexibility by adding EV-ready electrical capacity, solar readiness, smart security features, or advanced lighting controls. These options help shape this 345-square-foot ADU into a space that supports daily living today while staying ready for future needs, without overbuilding or adding unnecessary complexity.
YOU ASK WE ANSWER

The $120,000 starting price for this pre-approved studio ADU includes the core work required to design and build the structure itself. That covers the architectural design for this specific floor plan, structural engineering, Title 24 energy compliance, and full turnkey construction of the ADU shell and interior build-out based on standard inclusions. Labor, project coordination, and construction execution are all part of this number.
Items that vary widely by homeowner preference or city requirements, such as permit fees, city plan checks, and finished materials, are intentionally excluded so you stay in control of those decisions. This pricing approach keeps the base cost honest and predictable, while allowing flexibility where choices and budgets differ.
We separate these items intentionally. That approach gives you control over selections and budget instead of locking you into predetermined choices. Nothing appears later without discussion, and nothing hides behind vague allowances.
Starting with a pre-approved plan shortens timelines and reduces uncertainty. You avoid months of design revisions and the costs that come with starting from a blank page. This 345-square-foot ADU floor plan has already gone through review, construction, and refinement, which leads to smoother execution and fewer surprises during the build.
Homeowners choose us as their remodeling contractor because we prioritize clear communication just as much as quality. We explain scopes in plain language, provide transparent estimates, and set expectations early. While our pricing may not be the lowest on paper, clients often save money by avoiding rework, surprise costs, and unresolved issues that stem from unclear contracts. We build carefully, communicate directly, and stand behind our work. The goal stays simple: deliver a studio ADU that feels complete, durable, and worth the investment from day one.