QuiPlans — Licensed Structural Engineers · PE-Stamped Plans in 25 States
QuiPlans — 7,000+ Homeowners Served · Join the QuiPlans Community
QuiPlans — Permit Success Guarantee · Plans Accepted by Building Departments
QuiPlans — Permit-Ready Plans from $1,797 · Free ADU Floor Plan Available
QuiPlans — Plans Delivered in Days — Not Months · No Architect Required
QuiPlans — 4.9/5 Average Rating · Trusted by Builders Nationwide
examples: Backyard Home • Guest House • In-Law Suite • Rental Unit • Garden Cottage
Most homeowners have untapped income potential on their existing lot. Find out what yours can earn — in 60 seconds.
New Visitor · Take our 2-minute quiz to get personalized ADU recommendations, build costs, and more
Know exactly what you can build before you spend — a licensed PE reviews your lot for $349, fully credited toward your Permit Package.
Get Engineer ReviewRental Income Potential
$1,400–$3,200/mo
From an ADU on your existing lot
Property Value Increase
+$80K–$280K
Added equity in most U.S. markets
Why Homeowners Build ADUs
Your Property Is Worth More Than You Think
Most homeowners have untapped potential on their existing lot. Find out what yours can become.
Rental Income Potential
$1,400–$3,200/mo
Generate consistent monthly income from your existing property — without buying anything new.
Property Value Increase
+$120K–$280K
Additional living space can significantly increase resale value and equity in most markets.
Housing For Family
Multi-gen living
Create space for aging parents, adult children, guests, or caregivers — right on your property.
Engineer-Guided Planning
Know before you spend
Find out exactly what you can build — zoning, setbacks, costs — before committing a dollar.
Financial Intelligence
See the Numbers Before You Build
Real cost and income estimates for your project — based on size, location, and market data.
$85K–$130K
$1,400–$1,900
$16,800–$22,800
$80K–$140K
Estimates are illustrative ranges based on national averages. Your results will vary based on location, market conditions, and final project scope.
See Your Exact Price
Pick a Plan — See Your Permit Package Price Instantly
Pricing scales with plan size. Select a plan below to see your exact total, deposit, and payment schedule.
👆 Select a plan above to see your exact permit package pricing
The Process
From Property Discovery to PE-Stamped Plans in 3 Steps
Each step builds on the last. Every purchase credits toward your next stage — no wasted money, no surprises.
Find My ADU Opportunity — Free
Get a free 400 sqft ADU concept plan + cost estimate. Discover your property's income potential and best-fit design — no credit card.
- Free 400 sqft ADU concept plan (PDF)
- Estimated build cost + rental income
- Your fastest path to permit — step by step
- No credit card required
Engineer Review
A licensed PE reviews your exact lot — zoning, setbacks, utilities — and delivers a written go/no-go before you spend anything on construction. $349 credited toward your permit-ready plans.
- Licensed PE reviews your specific property
- Zoning, setbacks & utilities confirmed
- Written Go/No-Go report — PDF delivered
- $349 credited toward permit package
- Refundable before work begins; $349 credits to permit package
PE-Stamped Plans
Complete building plan set — architectural, structural (PE-stamped), and MEP. Prepared for city permit submission in 25 states. Delivered in 10–14 days. Site plan & drainage plan are NOT included (see Complete Package).
- Architectural + structural + MEP plans
- Signed & sealed by a licensed PE
- Accepted in 25 states
- Revision support included
Not sure where to start? Start My ADU Journey →
See How It Works
From Property Discovery to Permitted ADU
Watch how thousands of homeowners have used QuiPlans to unlock their property's potential.
Your Journey
Every Homeowner Follows the Same 5-Step Path
Each step builds on the last — and every fee credits toward your next stage.
Your Project Journey
ADU Project Roadmap
Property Match
Determine what may be possible on your property.
Engineer Review
Evaluate feasibility, constraints, opportunities, and project risks.
Permit-Ready Plans
Prepare engineering and construction documentation.
Permit Support
Navigate permitting, revisions, city comments, and coordination.
Build
Move into construction and project execution.
Choose Your Path
Which Option Is Right For You?
All three paths lead to a permitted ADU. The question is how much of the heavy lifting you want us to handle.
Step 1 · Start Here
$349
Engineer Review
"Know exactly what I can build before spending anything."
- Licensed PE reviews your exact lot
- Zoning, setbacks & utilities confirmed
- Written Go/No-Go recommendation (PDF)
- 5–7 business day delivery
- $349 fully credited toward any upgrade
- —PE-stamped building plans
- —Permit submission included
- —City coordination handled for you
Step 2 · Building Plans
From $1,797
PE-Stamped Plans
"I'm ready to handle permit submission myself."
- Architectural + structural + MEP plans (building plans only)
- PE-stamped by a licensed engineer
- Accepted in 25 U.S. states
- 10–14 business day delivery
- Plan revision support included
- —Site plan, grading, drainage, septic, utility & erosion control plans
- —Permit application filing & city coordination
- —Permit Success Guarantee
Step 3 · Complete Service
From $4,997
Complete Permit Package
"I want professionals to handle everything — with the Permit Success Guarantee."
- Everything in PE-Stamped Plans included
- Site plan
- Civil engineering — drainage & grading
- Septic design (when required)
- Utility plans & erosion control
- ALL application revisions & resubmissions
- Permit submission & all city coordination
- Dedicated permit specialist assigned
- Permit Success Guarantee (eligible projects)
💳 Start with 50% down
Balance split 25% Day 15 + 25% Day 30
Full Feature Comparison
| What's Included | Engineer Review $349 | PE-Stamped Plans $1,797+ | Complete Package $4,997+ |
|---|---|---|---|
| Licensed PE property review | — | ||
| Zoning & setback verification | — | ||
| Written Go/No-Go report | — | ||
| Architectural drawings | — | ||
| PE-stamped structural plans | — | ||
| MEP (mechanical, electrical, plumbing) | — | ||
| Site plan | — | — | |
| Civil engineering — drainage & grading | — | — | |
| Septic design (when required) | — | — | |
| Utility plans & erosion control | — | — | |
| Permit application filing | — | — | |
| City & building dept. coordination | — | — | |
| ALL application revisions & resubmissions | — | — | |
| Dedicated permit specialist | — | — | |
| Permit Success Guarantee (eligible projects) | — | — | |
| Fee credited toward next step | Included | ||
| Get started | $349 → | $1,797+ → | $4,997+ → |
Not sure where to start? Start My ADU Journey →
Plan Library
31 ADU, Garage & Home Designs
Studio to 3-bed ADUs · Garage conversions · Single-family homes
Every plan includes build cost estimates, rental income data, and permit-ready engineering options
ADU
ADU
adu
ADU
ADU
SINGLE FAMILY
ADU
SINGLE FAMILYReal Projects, Real People
Built With Permit Confidence
"We didn't know if our lot was buildable. The feasibility study gave us a clear answer in days — not months. We're now permitted and breaking ground."
+$2,400/mo rental income
Marcus T.
Sacramento, CA
Feasibility + Permit-Ready
"Downloaded the free ADU plan, upgraded to the permit-ready package, and we were approved on first submission. Worth every dollar."
+$1,800/mo rental income
Priya M.
Austin, TX
Permit-Ready Package
"As a contractor I use QuiPlans for multiple clients. The plan quality is excellent and the PE stamps are accepted everywhere."
3 active projects
Derek W.
Phoenix, AZ
Builder Program
"From the free concept plan to full construction admin support — the process was clear and totally worth it."
+$180K property value
Alicia R.
Denver, CO
Construction Admin
Engineering + Permitting + Property Opportunity
Why Homeowners Trust QuiPlans
Engineering experience, permitting knowledge, and thousands of completed projects.
Many homeowners come to us before they spend $100,000–$300,000+ on construction because they want clarity before making expensive decisions. Our role is helping property owners understand feasibility, permitting requirements, engineering challenges, and project opportunities — before costly mistakes occur.
Engineering Authority
Meet the Engineer Behind QuiPlans
Ph.D., P.E. — Founder & Lead Engineer
Dr. Mir Emad Mousavi, Ph.D., P.E.
Meet the Engineer Behind QuiPlans
Founder · Licensed Professional Engineer · Lead Reviewer
View credentials, education, engineering experience, and professional background on LinkedIn.For years, Mir has worked with homeowners, builders, developers, and property owners across a wide range of residential projects. His experience includes engineering design, permitting support, inspections, feasibility evaluations, and owner-builder projects.
He has tackled complex property challenges including flood zones, hillside lots, coastal requirements, windstorm regions, and difficult permitting environments — across multiple states.
Today, QuiPlans combines engineering expertise with technology to help homeowners move from idea to permit faster and with greater confidence.
Real People. Real Projects.
Real Homeowners. Real Properties. Real Projects.
Thousands of property owners have trusted engineering guidance before making major construction decisions.
Homeowner Consultation
Property evaluation with homeowners
Project Planning Discussion
Site feasibility review meeting
Engineering Assessment
Permit planning consultation
These are real project meetings and homeowner consultations — not stock photography.
What Waiting Could Cost
Each month a project is delayed may postpone multiple financial and life opportunities.
Potential rental income
Additional living space for your family
Property value growth
Multi-generational housing flexibility
Construction scheduling opportunities
Many homeowners start planning before construction costs, labor costs, and permitting timelines become more restrictive. Getting clarity on your property's potential now — before committing to construction — is often the most valuable first step.
See What My Property Can Support — Free →Trusted By Homeowners Across The United States
Verify Dr. Mir's credentials on LinkedInOver 7,500 design, engineering, inspection, and permitting projects completed.
PE-stamped plans accepted in 25 states: FL · TX · GA · NC · VA · MD · SC · TN · OH · MI · PA · NJ · NY · CT · MA · RI · ME · AZ · NV · CO · CA · LA · OK · NM · DC
7,500+
Projects Completed
Since 2002
Engineering Experience
25 States
PE-Stamped Coverage
Licensed PEs
On Every Project
Builders & Contractors
Fast turnaround. Scalable engineering. Multi-project support. Bulk plan access + PE engineering at scale.
- Access 30+ designs for any project type
- Bulk plan access + PE engineering at scale
- Construction admin support for active builds
- Dedicated account support
Investors & Developers
Maximize ROI on residential development. PE-stamped plans, feasibility reviews, and construction admin at scale.
- ROI analysis and cost modeling
- Multi-unit ADU development support
- State-specific permit strategy
- Speed to permit = faster ROI — every week saved is a month of rent
- Volume engineering discounts for multi-property portfolios
- Investor-level pricing available
Permitted projects across 25+ states · Licensed Structural Engineers, Inc.
Investor Bundles →Common Questions
Ready to Discover Your Property's Potential?
See What You Can Build — Free
Get a free starter plan, cost estimate, and personalized guidance. Discover your rental income potential, property value increase, and fastest path to permits. No credit card. No commitment.
Questions before you start? support@quiplans.com · Our engineering team responds within 1 business day. · Refund Policy
All plans and engineering services are subject to local jurisdiction requirements and final approval. Permit-ready plans include engineering subject to site-specific review. Concept plans are not for construction or permit use. Available in 25 U.S. states through Licensed Structural Engineers, Inc. and partner network.
