Auto design for septic and land planning
Give us an address. Get a septic system.
We find the parcel, read the soil and elevation, apply your county's rules and design a system from real products in stock, with the estimate and permit sheets ready.
Pick your address from the list to begin. Free for one week.
Prefer to steer? Design it step by step with Smart design
Two ways to design, same result
Let landplan.io do the whole job, or take the wheel at any step. Both draw ordinary map features you can change by hand.
One press, whole system
Give an address and the bedrooms. The assistant does the rest and explains every decision.
- Finds the parcel and creates the project
- Reads soil, elevation, wells, streams and setbacks
- Picks the best system and places house, tanks and field
- Checks the design, then makes the report PDF
A guided workflow, you decide
Pick the system, then place the parts one at a time. Each step tells you what comes next and what is missing.
- Choose a system, or see the full options table
- For each part, Place it for me or Draw it myself
- Move parts to option A, B or C, or by hand
- Fix anything the check flags, then print
Products, companies, inventory
The septic products dataset behind every design
A catalog of over 1,700 products and 3,200 companies: manufacturers, distributors, installers and designers. Every product has dimensions, documents and delivered prices, and distributors keep their inventory current.
- Designs use real tanks, pumps, chambers and pipe, not placeholders
- Delivered and pick-up price from the nearest distributor
- Manufacturers and distributors update their own data
- Companies get a public page that homeowners and designers find
| Product | Distributor | Stock | Delivered |
|---|---|---|---|
| 1,000 gal concrete tank | Distributor A | In stock | priced per site |
| 1,500 gal concrete tank | Distributor B | Low | priced per site |
| Effluent pump, 1/2 hp | Distributor A | In stock | priced per site |
| Leaching chamber, 8 ft | Distributor C | In stock | priced per site |
| Aerobic treatment unit | Distributor B | Order | priced per site |
What makes landplan.io different
Every number is traced to the site, a rule and a real product
Pick any part of the design and follow its trail. Reviewers, customers and regulators can follow the same trail.
Example values for a 3 bedroom home.
Everything a job needs, from address to truck
Design, data and the business side of a septic or land planning job, in one app.
Smart design
Describe the house and soil, get options ranked and drawn for you. Step by step, or in one press with Auto design.Products and distributor inventory
Current dimensions, prices and stock from manufacturers and distributors, used in every design.Calculations for every system
Trench, mound, low pressure pipe, spray, drip, ATU and pressure networks.Engineering-level maps
Scaled, snapping, measured, with true units.Cross section and hydraulic profile
Section any line. See pipe, pump and head loss on one chart.Parcels by address
Statewide parcel search, lot lines right on the map.On-demand elevation, contours, DEMs
Pull elevation for any point or line, draw contours when you need them.GIS layers and data access
Hydrology, soils, aerial basemaps and vector data, kept current and fast.Fast estimates
Components, delivery and labor priced as you draw. Enter your own prices.Fast reports
A permit-ready PDF with sheets, maps and calculations in a click.Plan reviews
Send the report to an inspector or regulator, and follow their comments to approval.For whom is our software intended?
Contractors and land owners that want to save time and money generating plans rapidly.
On site, on your phone
Install it like an app
Add landplan.io to your home screen and it opens full screen, even with a weak signal at the test pit. This page is the cover; tap Open app to go straight to your projects.
- Works offline once installed
- Same account, same projects on every device
- Parcels, elevation and calculators in your pocket
On iPhone or iPad: tap Share, then Add to Home Screen.
Parcels, elevation and calculators in your pocket.
Open appSign inHear from our customers
One plan, yearly or monthly
Start with a one week free trial.
$125 /mo
Pay as you go. Cancel any time.
$100 /mo billed annually
Best value, with state and county configurations and parcel data.
Talk to us
Teams, regulators and distributors.
Questions we get asked
What does Auto design need from me?
An address, and optionally the number of bedrooms. It finds the parcel, reads the site, picks a system that fits, draws it to scale and checks it against the rules. You can adjust anything it draws.
Do I need to install anything?
No. It runs in the browser, and you can add it to your phone's home screen as an app.
Which states and counties are covered?
Parcel search covers our statewide databases, and septic rules come from state and county configurations. The docs list what is covered today.
Can I give my own prices for materials and labor?
Yes. Estimates use our price database, and you can enter custom prices for any item.
Can a regulator or customer review my plan?
Yes. Share a project link and reviewers can open the map and leave comments.
Type an address and see a system in minutes
Free for a week. No card needed to start.
Built by Carl Preusser, CEO & Co-Founder, and Sam Irungu, CTO & Co-Founder