Plan Checker IQ Check a plan set
Plan review for South Carolina and North Carolina

Know what the county will reject before you submit.

Upload your construction document set, pick the county, the city, or both, and get a comment letter that points to the sheet and the code section behind every comment.

Check a plan set free How it works
42 counties and cities live Most reviews in 5 to 15 minutes Your first check is free
The deliverable

One letter, ready before the county sees it.

Comments grouped by review division, Major items first, each with its sheet and the rule it rests on. Fix them, then submit.

Check your plan set
Sample site plan, sheet C3.0 A sample subdivision site plan: a new street with a cul-de-sac off an existing road, numbered lots, storm pipes to a detention pond, a stream buffer, contours, a site data table and a title block. Not a real project. 824 822 820 818 816 814 812 50' STREAM BUFFER EXISTING COUNTY ROAD (60' R/W) R=20' MILL CREEK COURT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 24" RCP DETENTION POND 100-YR WSE 812.6 TOP OF BERM 813.2 HYDRANT SPACING 1,040' SITE DATA ZONING R-12 TOTAL AREA 18.4 AC DISTURBED AREA 14.2 AC LOTS 26 DENSITY 1.41 DU/AC N 050 100 FT SAMPLE ENGINEERING SAMPLE ONLY NOT A REAL PROJECT PROJECT MILL CREEK SUBDIVISION GREENVILLE COUNTY, SC SHEET TITLE PRELIMINARY SITE PLAN SCALE 1" = 50' REVISIONS SHEET C3.0
Sample sheet, not a real project
Comment letter

Mill Creek Subdivision

Greenville County, SC
12 divisions reviewed
4 Major1 Minor
  1. 1Sight triangle missing at corner lot 1Subdivision and lots, LDR 8.14.1Major
  2. 2Curb returns 20 ft, 25 ft requiredRoads and streets, LDR Table 5.1Major
  3. 3Disturbed area differs from the NOIErosion control, stormwater checklistMinor
  4. 4Pond freeboard 0.6 ft, 1 ft requiredStormwater, checklist item 12Major
  5. 5Hydrants 1,040 ft apart, 800 ft allowedFire and water, Greenville WaterMajor

Sample letter. Real letters list every division, including the ones with no comments.

Check your plan set

A sample review on a sample sheet. Every check returns a comment letter with sheet references. Red cloud markup on your sheets is in preview.

How it works

Three steps, about the time it takes to get coffee.

Plan Checker IQ reads the whole set the way a county reviewer does: desk by desk, against the rules that county and city actually publish.

01

Upload the CD set

One PDF or several: civil, architectural, structural, MEP, plats, drainage reports. Sets up to 100 pages use 1 credit.

02

Pick the jurisdiction

A county, a city, or both for sites inside city limits. Same price either way.

03

Get the comment letter

Grouped by review division, with the sheet, the finding, the fix and the code section. Download it as a PDF.

Major

The county will reject the submittal until this is fixed.

Minor

A comment to resolve before approval. It will not stop intake.

Info

A suggestion or risk to know about. Not required.

Counties and cities
42counties and cities live in South Carolina and North Carolina

Each one is its own rule pack, built from the documents that jurisdiction publishes, checked against those sources and dated. A pack past its refresh window stops taking reviews until it is updated.

Claude, ChatGPT and the API

Run it from the chat you already use.

Add Plan Checker IQ as a connector and ask for a review in plain words. It uses the same credits and returns the same letter.

Check the Mill Creek CDs against Greenville County and the City of Greenville.
Plan Checker IQ: check_plans_from_chat_files
Started. This set is 84 pages, so it uses 1 credit. I will tell you when the letter is ready.
Done. 4 Major, 1 Minor. The Major items: sight triangle at lot 1, curb returns at the entrance, pond freeboard, hydrant spacing. Want the PDF?

Connector address

Paste this into Claude (Settings, Connectors) or ChatGPT (Apps and Connectors), then sign in to approve.

https://www.plancheckeriq.com/mcp

Or call the API

Upload a set, start a check and fetch the letter with an API key from your dashboard.

Read the API docs →
Pricing

Pay per plan set. Your first one is free.

1 credit per plan set up to 100 pages, plus 1 credit per further 100 pages. A county, a city, or both cost the same. Failed or incomplete checks are free.

Find the rejections before the county does.

Check a plan set free