Field notes for homeowners
Plan the house before pricing the work.
Plain-language guides to zoning, feasibility, cost and construction decisions for major residential projects in Montgomery County, Maryland.
Feasibility process · Updated August 24, 2026
Before designing the addition, decide whether the project makes sense
See how we work with current owners and prospective buyers through discovery, surveys, technical and economic analysis, plans, specifications, budget and timeline.
Read the feasibility guide →
Zoning + feasibility · Updated August 22, 2026
Montgomery County zoning for home additions: R-60, R-90 and R-200
Compare standard lot coverage, setbacks and conceptual addition footprints—then see how owner-use value, construction cost and neighborhood sale prices change the investment conversation.
Read the zoning guide →How to use these guides
Start informed. Confirm the parcel.
Blog articles can make the first feasibility conversation more productive, but they cannot replace an address-specific zoning review, current survey, design, contractor estimate or appraisal.
Every project begins with the actual house: what the owner needs, what the property allows and what construction must resolve.