Precision site planning in your browser

Plan any site.
Instantly.

Lot Sketch is the fastest way to lay out parcels, buildings, parking, and roads to scale — no CAD software, no downloads, no learning curve.

LOT SKETCH — MAIN ST INDUSTRIAL
Save
Export PNG
TOOLS
Select
Parcel
Road
Building
Parking
Measure
Massing
GRID
Snap to Grid
Snap 1 ft
VIEW
Zoom In (+)
Zoom Out (−)
Fit View (F)
248.5 ft
x: 312.0 y: 188.5
BUILDING
POSITION
X (ft)
Y (ft)
SIZE
Width
Depth
BUILDING
Fill Color
Opacity
Rotation
Docks8 (single)
DELETE ELEMENT
Acreage 4.820 ac
FAR 0.35
Lot Coverage 58.2%
Building SF 73,440 sf
Parking Stalls 186 stalls
Ratio 2.53 / 1,000

Everything you need.
Nothing you don't.

Professional-grade site planning tools without the professional-grade price tag or learning curve.

7 Precision Drawing Tools

Parcel boundaries, roads with intersections, buildings with dock configurations, parking stalls, massing zones, and measurement lines — all in one canvas.

Live Site Analysis

Acreage, FAR ratio, lot coverage, building square footage, parking stall count, and parking ratio update in real time as you draw.

Export-Ready Output

Export clean PNG files suitable for presentations, feasibility studies, and client deliverables — with one click, no watermarks.

No Software to Install

Runs entirely in your browser. Open a tab, start planning. Works on any device with a modern browser — no plugins, no downloads, no IT approval.

Snap-to-Grid Accuracy

Configurable grid snapping at any increment — quarter foot to ten feet — ensures every element aligns precisely to your chosen scale.

Satellite Map Overlay

Anchor your plan to a real-world location with street or satellite map tiles. Set any address or GPS coordinate as your reference point.

From blank canvas to
deliverable in minutes

1

Draw your parcel

Click to place vertices and define your site boundary. Enter an address to overlay the real satellite view.

2

Place your elements

Add roads, buildings, parking, and massing zones with drag-to-size controls. Configure dock doors and stall dimensions with precision.

3

Read the metrics

The live summary panel shows acreage, FAR, lot coverage, building SF, and parking ratio — updated with every change you make.

Built for every stage
of the development cycle

7
Drawing Tools
6
Element Types
Live
Site Analytics
0
Software to Install

Start free. Upgrade when ready.

No credit card required to try. Paid plans unlock saving, exporting, and more.

Free
$0
Try the full tool, no account needed.
Try the Tool →
All 7 drawing tools
Live site analysis
Map overlay
Save projects
Export PNG
Pro
$45/mo
For active developers and high-volume users.
Get Pro →
50 project saves / month
Priority email support
Early access to new features
Everything in Starter

See full plan comparison →

Common questions

Lot Sketch is a browser-based site planning tool for real estate developers, architects, engineers, and planners. You can draw parcel boundaries, roads, buildings, parking areas, and massing zones to scale — and get instant metrics like acreage, FAR, lot coverage, and parking ratio.
No. Lot Sketch runs entirely in your web browser. There's nothing to install, no plugins required, and it works on any modern browser on Mac, Windows, or Linux. Just open the page and start drawing.
One credit equals one new project save. When you create a new project and save it for the first time, one credit is consumed from your monthly allowance. Re-saving an existing project (updating it) does not consume an additional credit. Credits reset at the start of each calendar month.
Yes. The Free plan gives you full access to the drawing tools, all element types, live analysis, and map integration — with no time limit and no credit card required. The only restrictions are that you can't save projects to your account or export PNG files.
Paid plans can export your site plan as a high-resolution PNG image. This is ideal for adding to presentations, reports, and client deliverables. Additional export formats (PDF, DXF) are planned for future updates.
On the Free plan, your work is session-only — refreshing the page will clear the canvas. On paid plans, you can save your project at any time using the Save button. Your saved projects persist in your account and can be reopened from your Dashboard.
Lot Sketch shines for feasibility studies, concept site plans, due diligence sketches, parking analysis, industrial/logistics layouts, and early-stage design exploration. It's designed to be fast, not to replace full CAD software for construction documents.

Start planning for free today

No account required. No credit card. No time limit.

Open Lot Sketch