Landmark Apartments, Indianapolis, IN, 46260. Bedrooms: 0-3. Welcome to Landmark Apartments, a gated community. You will enjoy living lakeside or enveloped by dense natural woods, guarded from the hustle-bustle of the workday. Unique in design, spacious in area and complete in detail, describes this charming community tucked away in one of the city's most convenient locations. The caring staff and top-notch maintenance are at your service. Keep that promise you made yourself...only the best, choose Landmark Apartments.