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Custom Drafting Services in Riverside County

Bring your remodel, addition, or ADU to life through our precise residential drafting services built to meet Riverside County’s building codes and fast-track your project.

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Latest Projects

Browse Our Latest Projects

See how Streamline Design & Permitting transforms initial concepts into precise, permit-ready plans that make construction smoother and properties more functional. Our drafting specialists help homeowners, builders, and developers create detailed and meticulous drawings that meet all Riverside County standards.

  • 2,287 sf
  • 4 Beds
  • 2.5 Baths
Home Remodel and Addition in Clearwater
Whole House Remodeling

Home Remodel and Addition in Clearwater

  • 1,232 sf
  • 2 Beds
  • 2 Baths
ADU New Construction in Rosehill
Detached ADU

ADU New Construction in Rosehill

  • 425 sf
  • 1 Bed
  • 1 Bath
ADU New Construction in Saratoga
Attached ADU

ADU New Construction in Saratoga

Hear from Our Happy Clients

Find out why Riverside County property owners trust our drafting and permitting expertise.

Our Professional Partnerships

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Start Your Project Today

Get permit-ready plans with our expert drafting team. Contact us today to schedule a consultation and move your Riverside County project forward.

Discuss Your Project
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Single-storey modern house with glass walls, a stone chimney and a patio by a lawn
Single-storey stucco house with a tiled roof and a railed terrace on a lawn
Single-storey house with wood-slat cladding, a gravel path and patio chairs

About

Your Trusted Drafting Company in Riverside County

Whether you’re planning an ADU, whole-home remodel, or commercial tenant improvement, Streamline Design & Permitting provides end-to-end drafting solutions for property owners, developers, and businesses throughout Riverside County. With us, the drafting services process is seamless. We’re proud to deliver accurate, code-compliant plans that speed up approvals and avoid costly delays.

You’re in great hands. Our experienced team — including draftsmen, building designers, and a dedicated project manager — oversees every detail. We also provide 3D CAD drafting services to help you visualize your space before construction. Once plans are approved, we connect you with vetted contractors to bring your vision to life.

Trusted Construction Partners

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Our Services

From ADUs to Commercial Builds: Our Drafting Services

We handle construction projects of every size, ensuring each plan meets Riverside County’s stringent building codes and zoning standards.

  • Two-story house with a gambrel roof and peach siding

    Accessory Dwelling Units (ADUs)

    We create plans for detached units, garage conversions, basement apartments, and additions, guaranteeing full compliance with California law and Riverside County ordinances.

  • Drafting service

    Whole-Home Remodeling

    Our detailed drawings cover everything from open-concept kitchen layouts to multi-room upgrades, so you’ll have a clear roadmap for permits and construction.

  • Drafting service

    Room Additions

    Whether adding a new bedroom or a second story, we draft blueprints for seamless expansions, complete with cost projections and permit preparation.

  • Modern two-story home with balconies and a wooden deck

    Custom Home Design

    Our team designs everything from contemporary estates to compact, efficient residences — producing comprehensive technical drawings for a flawless and stress-free build.

  • Drafting service

    Commercial Tenant Improvements

    We prepare precise layouts for retail, office, and medical spaces, ensuring interiors meet California Building Code (CBC) requirements.

  • Two-story white house with an attached two-car garage

    Code Compliance

    We review as-built drawings and provide updates to ensure your plans meet Riverside County Building & Safety Division standards.

  • Drafting service

    Building Permit Assistance

    From submittals to agency coordination, we streamline the entire approval process to make it as stress-free as possible.

ADU Regulations & Requirements in Riverside County

Riverside County follows California state ADU laws (Cal. Gov. Code §65852.2) and local standards set by the Riverside County Ordinances and Department of Building & Safety. Here are the key requirements:

  • Permitted locations: ADUs and Junior ADUs (JADUs) may be built on lots with existing single- or multi-family residences (County Ordinance No. 348, § 18.31).
  • Quantity allowed: Single-family lots may include one ADU and one JADU; multi-family parcels may add up to two detached ADUs plus conversions of existing space.
  • Size limits: Detached ADUs can be up to 1,200 sq. ft.; attached units may not exceed 50% of the main home or 1,200 sq. ft., whichever is smaller.
  • Setbacks: At least 4 ft from side and rear property lines for most ADUs (Riverside Zoning Code § 18.31.050).
  • Parking: One space per unit unless exempt (e.g., within ½ mile of public transit) (California HCD Guidelines).
  • Building standards: All units must comply with the California Building Code (CBC) and Title 24 Energy Standards. Solar readiness is required for new detached units.

Turn Your Ideas Into Detailed Plans

Work with Riverside’s drafting experts at Streamline Design & Permitting for seamless, permit-ready designs.

Get Your Customized Estimate
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Get Designs That Get Approved

Our seasoned drafting team will create precise, code-compliant plans that keep your remodel, ADU, or addition on track.

Discuss Your Project
Process

How Our Building Designers Streamline Your Project

We simplify the drafting services and permitting process into clear, manageable stages, keeping you informed along the way:

  • 01

    Consultation & Planning

    Translate your goals into a workable design plan.

    Woman thinking at a table with notes and a laptop
  • 02

    Design Development

    Produce accurate, code-compliant drafts.

    Two people reviewing a 3D house model on a computer screen
  • 03

    Collaboration with Specialists

    Coordinate with engineers and surveyors to refine plans.

    Young man in a meeting explaining something with a pen
  • 04

    Permit Preparation

    Manage submittals to Riverside County Building & Safety Division.

    Hand stamping a paper document
  • 05

    Project Finalization

    Deliver approved, construction-ready plans.

    Hands over a contract beside a laptop

Why Us

Why Clients Choose Streamline Design & Permitting

  • Problem-Solving Expertise

    Creative, code-compliant solutions for challenging projects.

  • Proven Portfolio

    A track record of approved permits and successful builds.

  • Deep Regulatory Insight

    In-depth knowledge of Riverside County Building Codes and Planning Division standards.

  • On-Time Delivery

    Reliable timelines and proactive communication.

  • Transparent Pricing

    Drafting services typically cost 3–4 percent of the total project budget — competitive and clear pricing.

Contact Us

Ready to Visualize Your Project with Confidence?

Get professional drafting services that deliver detailed, code-compliant plans designed to streamline approvals and bring your Riverside County project to life.

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    FAQ

    FAQ Regarding Drafting Services in Riverside County

    • 01

      How much do drafting services cost in Riverside County?

      Professional drafting is an investment in clear plans, smoother permitting, and fewer costly revisions. Pricing depends on your project’s size, complexity, and approval requirements, but we always provide a transparent estimate upfront so you can move forward with confidence.

    • 02

      What can you build on your property without a permit in California?

      You can typically complete small, non-structural projects such as painting, installing countertops or cabinet refacing, and replacing electrical outlets or switches without a permit. You’re also allowed minor repairs (like faucet or toilet replacement), as well as small site improvements — e.g., a detached shed under 120 square feet (with no electric), property-line fences up to 6 feet tall, or walkways and driveways that don’t cross a basement — with no permit required.

    • 03

      What do drafting services do in Riverside County?

      Drafting services involve creating precise technical drawings and plans that show how a building or structure will be constructed. These drawings include layouts, measurements, and details needed for permits and construction. They help homeowners, builders, and officials clearly understand every aspect of a project.