Urban Construction & Design Solutions
Modern detached ADU in a Long Beach backyard

Accessory Dwelling Unit

Accessory Dwelling Unit Design & Build

Accessory dwelling unit, built to code and aligned with state law, with transparent pricing and clear timelines. Add rental income and lasting value without the headaches, so homeowners only pay for what matters and see a smart investment.

Esme Ordonez

"Elias eased my fears. I had recently gone through three contractors—all did terrible jobs, failed to complete the work they collected funds for and qualify as nightmare…"

Our Approach to Living Space

A complete home, built without the headaches.

Accessory dwelling unit projects create a complete, self-contained home on your property, creating flexible living space without disrupting daily life. Urban Construction & Design Solutions manages design, permitting, and construction with transparent pricing and clear timelines. One accountable team from first sketch to final walk‑through.

Use it as independent living space for aging parents, a comfortable in law suite for family members, or a quiet retreat or sunroom‑style lounge for long‑term guests. Looking for smart cash flow? A well planned unit can support rental income while keeping privacy and comfort intact.

We simplify the details, handle ADU regulations and code compliance, and keep communication straightforward at every step. See what fits your budget and site, including clear ADU construction cost guidance, then move forward with confidence.

Get a Free Quote

Benefits

Benefits Of Guest House Projects.

  • Earn more. Position your guest house for stable rental income and lasting value, plus a long‑term investment.
  • Keep family close. Create an independent living space with a separate entrance for an in law suite or visiting family members.
  • Approvals handled. We navigate ADU regulations in single family zoning districts across local communities, cutting red tape and costly delays.
  • Use what you have. Convert an existing structure, including garages and other accessory structures, into a code-compliant home that maximizes square footage.
  • No surprises. Transparent pricing, clear milestones, and one accountable team from first sketch to final sign-off. That is the difference clients mention most.

Our Accessory Dwelling Unit Services

Every scope, end to end.

ADU Design & Feasibility

ADU Design & Feasibility

We study your lot, utilities, and access to map the best fit with your existing home and single family home lot. You get practical design options, clear budgets, and a layout that works for daily life, whether for an in law suite or a private studio. Expect straight answers, accurate drawings, and a roadmap that saves time.

Permitting & Approvals

Permitting & Approvals

We prepare plans, engineering, and forms, then manage submittals from start to finish. Our team coordinates directly with plan reviewers and other parties so your application aligns with ADU regulations, zoning regulations, and applicable law the first time. You get transparent updates and a clean path to a green light.

Detached ADU Construction

Detached ADU Construction

Ground-up builds done with precision and a tight schedule. We craft durable shells, a reliable roof, clean interiors, and efficient systems inside compact structures that are rental housing ready or perfect for multi‑generational living. Every milestone is documented, so cost, scope, and timelines stay clear.

Garage Conversion ADUs

Garage Conversion ADUs

Turn underused garages into a fully equipped unit, often called granny flats, without expanding the footprint. We reinforce the slab, insulate, add plumbing and electrical, and integrate finishes that match your existing home. Smart storage, sound control, and privacy are planned in from day one.

Attached & Internal ADUs

Attached & Internal ADUs

Seamless additions and internal ADUs that connect to the main structure while keeping full functionality and privacy. Ideal for an in law suite, a quiet office, or a future rental, designed to perform as a complete home. We align layout, structure, and systems for a smooth build and a clean finish.

How It Works

How Your ADU Project Comes Together.

  1. 01

    Feasibility And Code Check

    We review your lot access and utilities, confirm fit with your goals, and verify ADU regulations to map a clear, by-right path under law before any design starts.

  2. 02

    Design And Transparent Pricing

    We draft practical floor plans and elevations that make the unit a natural extension of your house that creates more space, then present a fixed, line-item estimate and a clear build schedule.

  3. 03

    Permitting And Approvals

    Our team prepares construction documents, submits your package, manages plan check feedback, and secures permits and development approvals so you avoid red tape and delays.

  4. 04

    Build And Inspections

    We handle site prep, foundation, framing, MEP, and finishes, coordinate inspections, creating steady momentum, and keep you updated with consistent check-ins until final approvals.

  5. 05

    Handover And Support

    After final inspection, we complete the punch list, deliver warranties and care guides, and walk you through your new accessory dwelling unit so it is ready on day one for daily living and relaxation.

FAQ

Frequently Asked Questions.

ADU Planning Support

Zoning, conversions, and rental readiness.

Bright ADU interior with kitchen and living area

Zoning Regulations In Single Family Zoning Districts

Urban Construction & Design Solutions keeps your ADU plan compliant and predictable. We map local rules to your lot, confirm what fits by right, and build a clear path to permits and development standards. The goal is a smooth approval, fewer surprises, and a finished unit that adds value and a significant boost to flexibility.

  • Smart layouts that add a new bedroom or studio-style sleeping zone without wasting square footage.
  • Appliance, plumbing, and HVAC selections that match your budget, style, and energy goals.
  • Safety, light, and sound control that make the independent living space feel calm and private.

Whether you are planning for an in law suite or a flexible retreat, we balance comfort and compliance so the unit feels like part of your main home, not an afterthought.

Existing Structure Conversions

Garage conversions, basement units, and internal ADUs are efficient ways to add space inside the existing structure or other accessory structures. We study utilities, head height, and egress, then shape secondary suites or accessory apartments that feel intentional and code-ready.

  • Garages on the same lot converted to a bright studio with a quick path to water, power, and drainage.
  • Basements transformed into quiet living space with fire separation, insulation, and moisture control.
  • Attached bump-outs that read as a natural extension of your existing home, inside and out.

Every detail respects structural limits and finish goals, so your house gains usable space without clashing with the original form.

Converted garage ADU exterior in Long Beach
Comfortable ADU bedroom ready for long-term rental

Rental Housing Considerations

If you plan to rent, we set you up to manage the unit with confidence. We clarify state laws, local rules, and ADU regulations, then design to serve tenants to protect privacy, durability, and comfort. Many cities allow ADUs with clear standards that make approvals faster.

  • Guidance on rent readiness, including sound control, low‑maintenance finishes, and simple access.
  • Clear steps for utilities, mail, and parking that meet zoning, minimize friction, and support rental income potential.
  • A compliance brief that outlines inspection points, cost impacts, and how to manage periodic upkeep.

This approach helps property owners attract reliable tenants, support stable rental income, and keep the unit aligned with evolving city policies and adoption timelines.

Ready when you are

Let's bring your project to life.

Schedule a no-pressure consultation. We'll walk your space, talk through scope, and deliver a transparent estimate within days, not weeks.

CallFree Estimate