Gaithersburg, MD Landscaping Rules: Artificial Turf (2026)

There is no Gaithersburg or Montgomery County ordinance that specifically addresses, bans, or restricts artificial turf installation on residential properties. Homeowners may install synthetic grass in front yards, back yards, side yards, play areas, and pet runs without obtaining a building permit from the city in most standard installations. However, if the installation involves significant regrading of the lot, modification of drainage patterns, or removal of existing trees, separate permits for grading, sediment control, or tree removal may apply depending on the scope of work. The primary regulatory consideration for artificial turf in Gaithersburg relates to stormwater management. Montgomery County requires compliance with Environmental Site Design (ESD) standards for new impervious surface, and artificial turf may be classified as impervious or semi-impervious depending on the drainage characteristics of the backing material and base preparation. Standard artificial turf installed over a compacted aggregate base with limited permeability functions similarly to impervious surface for stormwater runoff purposes. Turf installed over a permeable base with adequate drainage may be classified as semi-impervious. When combined with existing impervious surfaces on the lot (roof, driveway, patio, walkways), a large turf installation could push the property over ESD thresholds, potentially requiring the homeowner to install compensatory stormwater management such as a rain garden, dry well, or permeable pavement elsewhere on the property. WSSC's Water Quality Protection Charge is based on impervious surface area, and adding significant impervious or semi-impervious surface could increase the annual charge. Homeowners should consult with Gaithersburg Permitting and Inspections (301-258-6330) before large installations to determine whether any stormwater review is triggered. HOA communities represent a significant practical consideration in Gaithersburg, where many neighborhoods have active architectural review committees with detailed guidelines on landscaping appearance. Some HOAs welcome artificial turf as a low-maintenance alternative, while others restrict it to back yards only or require specific quality standards for visible installations. Review your community covenants and submit an architectural review application before proceeding with installation. Montgomery County does not offer water conservation rebates or incentives for artificial turf installation. The RainScapes program specifically promotes living plant solutions (native plants, rain gardens, conservation landscaping) rather than synthetic alternatives, reflecting the county's emphasis on ecological function alongside stormwater management. The county's position is that native plant landscaping provides superior environmental benefits including pollinator habitat, carbon sequestration, and soil health improvement that artificial turf cannot replicate.