Automated site base plans for landscape architects

What to build

A hosted SaaS version of an open-source address-to-site-plan generator that auto-pulls parcel lines, LiDAR contours, flood zones, wetlands, and soils data into a downloadable base sheet, sold to landscape architects, civil engineers, and land surveyors who currently assemble this manually per project.

An open-source Show HN tool already automates the tedious first step of site planning (pulling parcel, topo, flood, wetland, and soils data for a US address); wrapping it as a per-report or subscription SaaS could monetize a real manual workflow pain point in design and engineering firms.

Demand

Landscape architects, civil engineers, and surveyors who bill hourly feel the cost of manually aggregating site data on every new project, and the creator built this specifically for a landscape architect friend — a direct signal of a real, if narrow, user need.

• Hacker NewsShow hn

  Show HN: Open-source site base plans from any US address — 3 points, 0 comments. Creator states: "I built this tool for a landscape architect friend."

Stack

• Mapbox or MapLibre GL JS
• USGS 3DEP LiDAR API
• FEMA National Flood Hazard Layer API
• USDA SSURGO soils data
• Regrid or county GIS parcel APIs
• Stripe for per-report/subscription billing

Solo + AI difficulty

The hard part is already solved by the open-source project (data aggregation and rendering); the solo build work is wrapping it in auth, billing, report export (PDF/DWG), and a usable UI, which an AI-assisted builder could get to a paid MVP in 2-4 weeks. The bigger risk is data reliability and keeping multiple government/commercial data sources integrated and current, which is ongoing maintenance, not a one-time build.

Entry threshold

The core engine already exists as MIT-licensed code, so the build is mostly a web front end, billing and a reliable pipeline across fragmented county-level GIS sources plus FEMA, NRCS and LiDAR data; doable solo in a few weeks, with no licenses needed beyond standard public-data terms.

Window

ongoing, 12-24 months

Where to find first users

• ASLA (American Society of Landscape Architects) online forums and chapter mailing lists
• r/landscaping and r/civilengineering on Reddit
• Direct outreach to small landscape architecture and civil engineering firms
• Show HN / Product Hunt launch for a hosted version

Competitors

• Regrid
• LandVision
• First American Data Tree

Counter-signals & risks

• Established GIS/parcel data aggregators (Regrid, LandVision, First American, municipal GIS portals) already offer overlapping parcel, flood, and topo data layers, raising differentiation risk.

• Civil engineering and surveying deliverables often require licensed professional sign-off and liability assurance, so firms may resist using an automated tool as a basis for stamped work.

• Data licensing and accuracy issues (LiDAR resolution, outdated flood/wetland boundaries, parcel data currency) could limit reliability for professional-grade deliverables and undermine willingness to pay.