A Maryland lot is buildable if it passes all applicable regulatory and physical requirements: (1) it is in a zoning district that allows residential construction; (2) the buildable area remaining after applying front, rear and side setbacks can accommodate the intended home footprint; (3) the planned combination of house, garage, driveway and hardscaping does not exceed the zoning district’s maximum lot coverage; (4) the lot is not in a flood zone that makes construction uneconomical; (5) if not served by public sewer, the soil percolation test passes and a septic system can be installed; and (6) there are no environmental overlays (Chesapeake Bay Critical Area, wetlands) that eliminate the buildable area. Fortune Homes MD’s 9-dimension Buildability Score evaluates all of these criteria systematically before design begins.

A percolation test (perc test) measures how quickly water is absorbed by the soil at a proposed drain field location. In Maryland, a perc test is required for any lot that will use an on-site sewage disposal system (septic) rather than public sewer which includes most lots in Carroll County, most rural Frederick County parcels, and many lots in Baltimore County, Anne Arundel County and other rural areas. The test is conducted by a Maryland-licensed soil scientist who digs test pits, saturates the soil, and measures the absorption rate. A failing perc test means the soil cannot support a conventional septic system alternative systems (mound system, drip irrigation system) may be available for marginal soils, but at additional cost ($10,000–$30,000 above conventional septic). A lot that fails all septic alternatives cannot be built on without public sewer access.

Maryland’s Forest Conservation Act (FCA) requires that developers and property owners protect existing forests and mitigate forest clearing during development. The Act applies to lots over 40,000 square feet (approximately 1 acre) that involve land disturbance for new construction. If the lot has existing forest coverage, the owner must submit a Forest Stand Delineation (FSD) identifying the forest stands, and may be required to submit a Forest Conservation Plan (FCP) showing how forest will be retained or replaced. Forest conservation obligations can include retaining forest on the subject property, planting replacement trees, or paying a fee to Maryland’s Forest Conservation Fund for off-site mitigation. The FCA applies in all 7 Maryland counties with varying thresholds and is enforced by the county’s planning department.

Yes you can build in many FEMA flood zones, but with requirements that increase construction cost. Zone X (minimal flood risk) has no additional requirements. Zone AE (100-year flood plain) requires the home’s lowest floor (including basement) to be constructed at or above the Base Flood Elevation (BFE) established by FEMA typically 1–2 feet above the current grade. This elevation requirement may add $15,000–$45,000 to foundation construction costs (fill, elevated slab, or stem wall). Zone VE (coastal high-velocity) is generally too risky and expensive for residential new construction. The specific requirements depend on the county’s floodplain management ordinance; some Maryland counties require 1–2 feet of freeboard above the BFE as additional protection.

A Maryland land evaluation takes 2–4 weeks from initial engagement to completed report for most lots. The fastest component is the desk review (zoning, GIS, flood zone, Critical Area) typically 2–3 business days. The longest component is the perc test for rural lots scheduling a licensed soil scientist, conducting the test, and receiving the written report typically takes 2–3 weeks from engagement. Geotechnical borings take 1–2 weeks from engagement to report. Forest Stand Delineation takes 2–3 weeks. For urban suburban lots where a perc test is not required, the full land evaluation can be completed in 1–2 weeks. Starting the land evaluation at the beginning of the site development process before architectural design is commissioned ensures that design decisions are made with full knowledge of the site’s constraints.