1 · Find your lot

See a Langone ADU on your lot

Public parcel lines, soil, and water layers. A sketch, not a survey or a permit.

Enter an address, or tap your lot on the map. We cover southern Maine and the NH Lakes Region and Seacoast.

Brown is the home, tan is the field, gray is the tank, teal is the well. No shape breaks a setback on this sketch. N is north. The aerial photo is credited on the map and can be a few years old.

Adjust the layout

Move a shape without dragging

0 ft east and 0 ft north of the address point.

Mark what is already on the lot

Map layers

Tapping the map looks up the parcel under the pin

Drag a shape on the map, or use the arrows above. Arrow keys nudge the chosen shape, [ and ] rotate 15°, and R rotates 90°. Suggested layouts are not a design.

Pick a size

What are you placing?

Catalog says 16×24, one story, 384 sq ft.

Well, tank, and field

The well marker is a proposed spot, not a located existing well. Sizes below start as labeled assumptions from the model and the state table. Change any of them and the sketch uses your number.

Town waterTown sewer

Show proposed well

BedroomsDwelling rowSystemWell kindBasementFoundation drains

Tank lengthTank widthField lengthField width

These lengths start from the assumptions above. Set a side to 0 to hide that rectangle.

Details · checks and rules

Unknown · Disposal-field size is unknown
Enter a planning length and width if you want the field drawn. Bedroom count alone does not determine field dimensions. No typical size is assumed, and there is no pass.
Unknown · Tank size is unknown
Enter a planning length and width for the tank. No default tank size is used, so tank setbacks stay unknown.
Unknown · The water layer was unavailable
The water layer was unavailable. That is not a clear separation. Check it on site.
Unknown · wetland separation is unknown
The wetland layer did not return a usable result. A missing layer is not a clear separation.
Unknown · flood separation is unknown
The flood layer did not return a usable result. A missing layer is not a clear separation.
Unknown · State setback screen is off
Maine and New Hampshire distances are not mixed, and they are not applied outside the enabled town list. Property-line and well distances on this sketch are not a regulatory result.

Driveway and slope

Driveway

Length follows the straight segments on the sketch. It is not a road-opening approval.

Horizontal length: not drawn

Grade along the driveway: not sampled yet. No number is assumed from the address-point grade.

Slope stays unknown until a soil map unit or a DEM sample is available.

Email me the full report

Your report goes to this address, and Dylan gets a copy so he can answer when you call. The sketch above stays on screen either way. No marketing list, and no texts.

Save a sketch and the lot-plan PDF becomes available to download. Prices on the model cards are the published starting prices.

What this screen can and cannot tell you

It can show a published parcel outline, a polygon area computed from that outline, an assessor lot size when the assessor table has one, and screening flags from national wetlands, flood, hydrography, soil, and elevation services. It cannot permit a building, design a septic system, or decide shoreland jurisdiction.

York County towns with polygons on the Maine GeoLibrary check of 2026-11-07: Acton, Alfred, Arundel, Berwick, Biddeford, Buxton, Dayton, Eliot, Hollis, Kennebunk, Kennebunkport, Kittery, Lebanon, Limerick, Limington, Lyman, North Berwick, Ogunquit, Old Orchard Beach, Saco, Sanford, Shapleigh, South Berwick, Wells, York.

No GeoLibrary polygon that day: Newfield, Waterboro, Parsonsfield, Cornish. Newfield, including West Newfield, is in that gap. Scanned tax maps are linked when a town page was verified. A paid parcel feed is not connected.

NH Lakes towns enabled from the GRANIT mosaic: Alton (5203), Barnstead (3498), Brookfield (650), Center Harbor (1031), Effingham (1505), Freedom (2866), Gilford (4269), Laconia (6857), Madison (3219), Meredith (6022), Middleton (1374), Milton (2528), Moultonborough (6884), New Durham (2701), Ossipee (4716), Sandwich (1846), Tamworth (2687), Tuftonboro (3111), Wakefield (5863), Wolfeboro (5098).

NH Seacoast towns enabled: Dover (8729), Durham (2449), Exeter (4246), Greenland (1657), Hampton (6838), Hampton Falls (1248), Newington (757), Newmarket (2647), North Hampton (2221), Portsmouth (6427), Rochester (10732), Rye (2976), Seabrook (3241), Somersworth (3501), Stratham (2439).

Not enabled even though GRANIT has polygons: Barrington (5203); Farmington (3102).

Alton and Barrington both counted 5,203 parcels on 2026-11-07. They are different towns: different county ids and different sample locations. Barrington stays off the enabled list.

Shoreland district overlays are not drawn. Dylan’s credential titles are not shown here. A second building, garage apron, and extra ADU are not in this preview.

ADU models · Consultation · Septic · Maine GeoLibrary · NH GRANIT

Save plan Text Dylan Get a quote

(978) 987-0089