Welcome to 1 Heuters Lane, a delightful Mt Tam view home in prime Mill Valley, just above downtown via Heuters Steps. Spacious ~3,230 sqft residence w/ 6BR & 3.5BA, incl lower-level ADU/au pair. Charming entrance thru meandering walkway and verdant gardens. Formal LR w/ vaulted ceilings, skylights, gas FP, & sliding doors to expansive view deck. Formal dining room connects to gourmet kit featuring Thermador & KitchenAid appliances, 5-burner gas cooktop, & integrated wine fridge. Kitchen flows to breakfast room w/ built-in desk. Fam room, powder room, laundry, & 2-car garage. Upper level features primary suite w/ vaulted ceilings, exposed beams, private balcony, adjacent sitting rm/office, WIC, & ensuite BA w/ dual vanities & jetted shower-over-tub. 4 addl BRs & full BA on this level. Lower-level ADU features sep entrance, BR, full BA, kit, & LR. Multiple outdoor spaces incl sprawling view decks, level artificial lawn, & side yard hangout area. Solar system on roof. Enjoy privacy, great sun exposure, & proximity to top-rated schools, hiking/biking trails, & vibrant MV community. Quick access to SF & nearby Marin towns. This fairytale-like property offers perfect blend of natural beauty, modern amenities, & convenient living in one of Marin's most desirable communities!