Architectural drawings and permit documents for ADU design
★★★★★ 4.9 — Rated by 30+ Homeowners

Send a Brief Today.
Get Drawings in 10 Days.

Say goodbye to expensive local architects, unreliable freelancers, and 3-month wait times. Get permit-ready construction drawings for your ADU, garage conversion, or home addition — starting at $997.

50+ Projects Delivered
10-Day Turnaround
Permit-Ready Drawings

Free Consultation

Get Your Project Quote

No commitment. Response within 4 hours.

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50+
Projects Delivered
$10K+
Avg. Client Savings
10
Business Day Delivery
98%
Permit Approval Rate

Plans Produced With Industry-Standard Software

AutoCAD Chief Architect Corona Renderer

4 Reasons Our Clients Love Us

We offer a 14-day money-back guarantee, no questions asked.

🌙

Our Team Doesn't Sleep

While you sleep, your drawings are being refined. We operate across time zones so your project never sits idle overnight.

💰

Fixed Project Rate

No hourly billing. No discovery fees. No surprise invoices. You know exactly what you'll pay before a single line is drawn.

High Volume. High Speed.

50+ projects delivered across 7 states with a 98% first-submission permit approval rate. We've built the process so you don't have to wait.

🎧

Dedicated Coordinator

Every project gets a dedicated design coordinator who responds within 4 business hours. No ticket queue, no chatbot.

Designer reviewing architectural plans
$10K+
Saved Per Project

Why Most Homeowners Overpay for Architectural Drawings

01

Local architects charge $8,000 – $15,000

For a project that doesn't require a licensed architect in most US states. You're paying for their office, their overhead, and their hourly rate, not the drawings.

02

Wait times run 8 – 16 weeks

Local design firms are backlogged. Every week you wait is a week your project isn't breaking ground, and construction costs keep rising.

03

A licensed architect is rarely required

ADUs, garage conversions, and home additions in most US jurisdictions only require stamped construction drawings, not a full architectural engagement.

See How We're Different →

Our Design Services

ADU Modern Exterior
Learn More →

ADU Design

From $1,997

Complete permit-ready construction drawings for Accessory Dwelling Units: detached, attached, or garage conversion ADUs.

  • Site plan & floor plan
  • Elevations (all 4 sides)
  • Electrical, plumbing & mechanical
View Service Details
Garage Conversion
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Garage Conversion

From $997

Transform your existing garage into a livable space (studio, bedroom, home office, or full ADU) with permit-ready drawings.

  • As-built documentation
  • Floor plan & interior elevations
  • Title 24 / energy compliance
View Service Details
Home Addition
Learn More →

Home Addition

From $2,497

Add square footage to your home with a room addition, second story, or bump-out. Full structural and construction drawing package.

  • Structural framing plans
  • Foundation details
  • Full MEP drawings
View Service Details

From Intake to Permit-Ready in 10 Business Days

01

Project Intake & Site Review

You share your site details, measurements, and design preferences via our intake form. We review local zoning and setback requirements for your jurisdiction within 24 hours.

02

Design Development

Your dedicated design coordinator develops the floor plan, elevations, and construction details using AutoCAD and Chief Architect. You receive a draft for review by Day 5.

03

Review & Revisions

Up to 2 rounds of revisions included. Your coordinator responds to change requests within 4 business hours. Every concern is addressed before final delivery.

04

Permit-Ready Delivery

Your complete construction drawing set is delivered as stamped PDF files, ready for building department submission. We support permit application questions at no extra cost.

Floor plan closeup
10 Days
Average Delivery Time

Recent Projects

A selection of completed construction drawing sets delivered to homeowners across the US.

California ADU

ADU Design

California ADU

600 sq ft · Los Angeles, CA

Garage Conversion

Garage Conversion

Studio Conversion

450 sq ft · Phoenix, AZ

Home Addition

Home Addition

Master Suite Addition

380 sq ft · Austin, TX

Texas ADU

ADU Design

Texas ADU

720 sq ft · Dallas, TX

Floor Plan Set

Floor Plans

Custom Floor Plan Set

1,200 sq ft · Portland, OR

3D Render and Drawings

3D Rendering

Render + Drawing Package

850 sq ft · Denver, CO

Choose Your Package

Every package includes 2 revision rounds, coordinator support, and permit-ready PDF delivery.

Starter

$997

Garage conversion or simple floor plans

  • Floor plan (1 level)
  • 4 exterior elevations
  • Electrical layout
  • 2 revision rounds
  • 10-day delivery
Get Started

Premium

$2,997

Full package + 3D renders + rush delivery

  • Everything in Standard
  • 3D photorealistic renders
  • Interior concept renders
  • 5-day rush delivery
  • Priority coordinator access
Get Started
14-Day Money-Back Guarantee — No Questions Asked

What Homeowners Are Saying

"

"I got quotes from 3 local architects — the lowest was $11,200. Build With A Plan delivered the same permit-ready drawings for $1,997. My permit was approved first submission. I saved over $9,200."

MT
Michael T.
ADU Project · San Diego, CA
Saved $9,200
"

"The garage conversion drawings came back in 8 days. My contractor was impressed with the level of detail. We broke ground 3 weeks after I placed the order. Architects quoted me $7,500 — I paid $997."

SL
Sarah L.
Garage Conversion · Austin, TX
Saved $6,500
"

"We added a 400 sq ft master suite. I was ready to spend $14,000 on a local architect. Build With A Plan handled everything — full structural plans, MEP drawings, permit support — for $2,997. Worth every penny."

DR
David R.
Home Addition · Phoenix, AZ
Saved $11,000
5-star reviews

5-Star Reviews

Permit approvals

Permit Approvals

Construction documents

Construction Docs

Digital drawing tablet

Digital Precision

Frequently Asked Questions

Local architects typically charge $5,000–$15,000 for the same permit-ready drawings we deliver for $997–$2,997, and their timelines average 8–14 weeks. Our team produces the same CAD and construction document output, at a fraction of the cost, in 10 business days. Many of our clients show up to their contractor with drawings their local firm couldn't match at any price.

In most US jurisdictions, ADUs, garage conversions, and home additions do not require the stamp of a licensed architect — only permit-ready construction drawings. Our drawings are produced by experienced architectural designers and are accepted by building departments in California, Texas, Arizona, Florida, Oregon, Washington, Colorado, and more.

Standard delivery is 10 business days from the day you complete your intake form and submit your site measurements. Day 5 is your first draft review. Days 6–8 are your revision window. Day 10 is final delivery. Premium clients receive a 5-day accelerated timeline.

Our Standard and Premium packages include: site plan, floor plan(s), exterior elevations (all 4 sides), building sections, electrical plan, plumbing layout, mechanical/HVAC layout, foundation details, framing plan, and Title 24 / energy compliance documentation.

Fill out the contact form with your project type, approximate square footage, and any sketches or photos you have. A dedicated project coordinator will reach out within 4 business hours to walk you through the intake checklist.

We draft all construction documents in AutoCAD — the industry standard for building department submissions — and use Chief Architect for 3D modeling and space planning. Photorealistic renders included in the Premium package are produced in Corona Renderer.

Every package includes 2 full revision rounds. A revision round covers as many changes as you can consolidate into a single feedback session — so there's no per-comment limit. If your project requires additional rounds, we offer them at a flat rate.

Our 98% first-submission approval rate is our track record. In the rare event of a correction notice from your building department, we review the comments and make the required drawing revisions at no additional charge.

We currently serve California, Texas, Arizona, Florida, Oregon, Washington, and Colorado. If you're in a state not listed, contact us — we evaluate new jurisdictions on a case-by-case basis.

We offer a 14-day money-back guarantee from the date of purchase, no questions asked. If work has begun and you've received a first draft, a pro-rated refund applies based on work completed.

Refer a Homeowner. Get Paid.

Know someone planning an ADU, garage conversion, or home addition? Send them our way and earn 10% of their project value — paid the moment they sign.

01

Refer

Send a friend or neighbor our way — by email, text, or the contact form. Just mention your name so we can track it.

02

They Sign

Once they book a project and payment is confirmed, we record the referral against your name.

03

You Earn

10% of their project value is sent to you — no cap, no expiry, no minimum. Refer as many homeowners as you like.

Submit a Referral →

Stop Paying Architect Prices.

Get your permit-ready drawings in 10 business days, thousands less than a local firm.

Start Your Project →

Architectural Guides for Homeowners

Everything you need to know about permits, design, and costs before you break ground.

Home Addition: The Complete Guide for Homeowners (2025)
Home Addition May 22, 2026

Home Addition: The Complete Guide for Homeowners (2025)

A home addition adds permitted square footage to your house. Covers 8 types, costs from $5K–$500K, permit requirements, what drawings you need, and how to plan it.

Read Article →
ADU Construction Cost: Real Numbers by Type, Size & State (2025)
ADU Fundamentals May 22, 2026

ADU Construction Cost: Real Numbers by Type, Size & State (2025)

ADU construction cost ranges from $40,000 for a JADU to $400,000+ for a custom detached unit. Get real numbers by type, size, and state for 2025.

Read Article →
Garage Conversion: The Complete Guide (2025)
Garage Conversion May 21, 2026

Garage Conversion: The Complete Guide (2025)

A garage conversion turns unused square footage into permitted living space (studio, bedroom, ADU, home office, or rental apartment) for $15,000 to $75,000. This guide covers every type, real costs, permit requirements, what drawings you need, and exactly how to get started.

Read Article →