Rene AI

New Plan check for cities and engineers, now in early access

Stamped permit sets in 24 hours. Plan checks in minutes.

An engineering firm built on our own AI tools. Permit-ready drawings and calculations, reviewed by a licensed PE, at a lower cost than a traditional firm, plus plan check for cities and engineers.

Get a quote Try plan check
PV-1 Site plan Array Combiner Main panel PV-4 Single-line Structural calculations Roof dead load15 psf Added load on rafter3.1% < 5% Rail span48 in OK Attachment uplift0.62 OK Attachment spacing, wind zone 248 in OK Ready for PE review S-1 Calculations
I need permit drawings and calculations Solar, structural and energy. Stamped in 24 hours. I review plans For building departments, plan checkers and engineers. Results in minutes.
24-hour turnaround
On stamped sets
PE licensed in 8 states
CA, AZ, NV, TX, CO, FL, MA and NJ
City corrections included
We answer the city's comments
Every set PE-reviewed
In responsible charge, before it leaves us

Send us your requirements. Get permit-ready work back.

Drawings and calculations for residential permits, prepared with our own tools and reviewed by a licensed PE.

Not sure which you need? Send us your project and we'll tell you what it takes, with a quote.
Available nowStamped in 24 hours

Solar plan review, calcs and stamp

Send us your drafted solar set. We check it against code and your city's rules, run the structural calculations on the design as drawn, and stamp it.

  • Solar installers
  • Plan set companies
  • Racking and hardware makers
Get a quote
  1. UploadYour drafted plan set
  2. Read and checkEvery sheet, by our tools
  3. PE reviewIn responsible charge
  4. Stamped setBack in 24 hours

What you get

  • Plan check findings, each tied to a sheet
  • One clear RFI list for anything missing
  • Structural calcs on your design as drawn
  • Calc package in PDF and Excel
  • PE stamp on the structural work
  • City corrections included

Why teams work with us

Our tools do the reading, checking and math. Our engineers spend their time on the decisions that need an engineer.

  • Lower cost

    You pay for engineering, not for someone retyping your drawings. We quote each job up front.

  • 24-hour turnaround

    Your set reaches the engineer already read, checked and calculated.

  • Calcs a plan checker can follow

    Every calculation comes in a clean package, so the city sees how each number was reached.

  • City corrections included

    If the city comes back with comments, we answer them.

  • PE licensed in 8 states

    Our PE is licensed in CA, AZ, NV, TX, CO, FL, MA and NJ.

  • One clear RFI

    If something is missing, you get one specific list of what we need, not a string of emails.

Every set goes through the same checks.

Quality control is built into how we work, not left to whoever picks up the set.

RIDGE ROOF PITCH 6:12 (E) 2x6 RAFTERS @ 24" O.C. COMP SHINGLE, 1 LAYER ARRAY SCHEDULEMODULE400 WQTY12AZIMUTH180° 46'-0" 30'-0" PV-2 Roof plan 1 2 3 1'-8" ≥ 18" ✓ CRC R324.6.2 14 drawn RFI 4'-0" Rafter: 3.1% added load, limit 5% 14 ✓ Revised PE REVIEW Reviewed ✓ DELIVERED Set + calc package
1 Symbols
14 modules drawn on the roof
2 Notes
Pitch 6:12, 2x6 rafters at 24 in
3 Table
Array schedule lists 12 modules
Passed
Ridge setback 1'-8", min. 18 in
Finding
14 modules drawn, schedule lists 12
Next
One RFI to you: which count is right?
Attachments
Every 48 in, on the rails
Rafter check
3.1% added load, limit 5%
Run again
Same inputs, same answer
RFI answered
Schedule revised to 14
Review
A licensed PE, in responsible charge
You get
Stamped set and calc package, in 24 hours

Illustrative example, not a real project.

  • Every number can be reproduced by an engineer.
  • Every value comes from your drawings, or we ask you for it.
  • No set leaves without review by a licensed PE.

AI drafts and checks. All review is done under the responsible charge of a PE.

We built our own engineering tools. You get the results, not another login.

The tools are why our work costs less, comes back faster, and gets the same checks every time.

Drawing reader

Understands construction drawings the way engineers do: geometry, symbols, notes and tables, not just text.

You get work based on what's actually on your drawings.

Code and city-rule checker

Checks each set against code and the editions your city has adopted, and points to every finding.

You get issues found before the city sees them.

Calc library

Tested structural calc modules. When a job needs a configuration we haven't seen, AI helps write a new module, and it's tested before use.

You get calcs that fit your design, repeatable every time.

RFI drafter

Turns everything missing or inconsistent in a set into one clear, specific request.

You get less back-and-forth and faster answers.

Calc package builder

Assembles the calculations into a clean package in PDF and Excel.

You get calcs a plan checker can follow line by line.

Coming soon

Plan set app

From a site address and project details to a full solar or ADU permit set, through a simple app.

You get a plan set in minutes, stamped in 24 hours.

Find the issues in a set in minutes.

Our plan check runs a drawing set against the city's checklist and cites the sheet behind every finding. There's no queue: it runs when you open the set, and a reviewer makes every decision.

Early access

Plan check software

For city and agency plan checkers

Your staff review faster, using your own checklist.

  1. Load your checklist
  2. Open a set and get findings in minutes
  3. Point at a drawing and ask by voice
  4. Accept or reject each item, then issue corrections
Early access

Pre-submission check

For engineers, architects and designers

Find the corrections before the city does.

  1. Upload your set and calcs
  2. Pick the city's checklist
  3. Get a list of items to fix, each tied to a sheet
  4. Fix them and submit with confidence
Early access

Plan review service

For building departments

Extra review capacity when you need it. Your department keeps approval.

  1. You send the set and your checklist
  2. Our tool runs the check
  3. Our reviewers write the corrections
  4. You make the decision
Living Bedroom Kitchen Bath 15'-0" A-1 Site and floor plan

City ADU checklistSample results

Checked in minutes
  • Front setback dimensionedFoundSheet A-1
  • Smoke alarm locations shownFoundSheet A-1
  • Bedroom egress window sizeCorrectionNo window schedule in the set
What front setback is shown, and on which sheet?

15 ft, on sheet A-1.

Illustrative example, not a real project.

  • Checks a set against a city checklist Built
  • Flags issues outside the checklist Built
  • Checks structural calcs against the drawings Built
  • Every answer cites its sheet Built
  • City checklists by jurisdiction In progress
  • Point at a drawing and ask by voice In progress
  • Corrections list ready to issue In progress
  • The reviewer decides, and the city approves.
  • Every finding is tied to a sheet you can check.
  • We never review a set we prepared.
  • Tested on the LADBS ADU checklist with real ADU sets.

Our PE is licensed in 8 states

Structural work is sealed by our Civil PE, who is licensed in each of these states.

HI AK FL NH MI VT ME RI NY PA NJ DE MD VA WV OH IL CT WI NC DC MA TN AR MO GA SC KY AL LA MS IA MN OK TX NM KS NE SD ND WY MT CO ID UT AZ NV OR WA CA
  • CACalifornia
  • AZArizona
  • NVNevada
  • TXTexas
  • COColorado
  • FLFlorida
  • MAMassachusetts
  • NJNew Jersey

Working in another state? Ask us. We'll tell you plainly whether we can take the job.

Praneet Erusu, PE, founder of Rene AI

Built by engineers

We build our tools from how engineering review is actually done, so every job is auditable. If something goes wrong, we can find the exact step where it entered and fix it for every job after.

The steps that carry legal responsibility stay with a licensed engineer, by design. AI drafts and checks. Our engineers decide.

Praneet Erusu, PE · Founder

About 11 years in structural engineering. Civil PE in 8 states. MS, UCLA. B.Tech, IIT Guwahati.

LinkedIn

Questions clients ask

How fast is turnaround?

Stamped sets come back in 24 hours. Plan check results come back in minutes, because the tool runs as soon as you open the set.

Who stamps the work?

Structural work is stamped by our Civil PE, licensed in CA, AZ, NV, TX, CO, FL, MA and NJ.

Does AI do the engineering?

No. AI drafts and checks. Calculations run in tested modules, and a licensed PE reviews every set in responsible charge.

What if the city issues corrections?

They're included. We answer the city's comments on the work we delivered.

How does pricing compare?

Lower than a traditional engineering firm, because our tools do the repetitive work. We quote each job up front.

What if my project has an unusual configuration?

We write and test a new calc module before it's used on your job. After that, it runs on every similar project.

Does plan check approve plans?

No. It flags issues and cites the sheet behind each one. A reviewer decides on every item, and the city makes the approval.

Do you review projects you designed?

Never. We don't review a set our firm prepared.

When do the plan set app and Title 24 open?

Both are coming soon. Join the waitlist and we'll tell you as soon as they open.

How do I get started?

Email us your project for a quote, or ask for plan check early access. We'll reply with next steps.

Start with one project.

Send one set and see the difference: the checks, the calc package and the turnaround.

Need drawings or calcs?

Send us your project and we'll quote it. Stamped sets in 24 hours, city corrections included.

Get a quote

Review plans?

Try plan check on one of your own sets. For building departments, plan checkers and engineers.

Request early access

Or email us directly at hello@reneai.io.