Welcome to 100 Pennbrook Ln, nestled in the private and highly desirable Aderley neighborhood in Irmo! This charming 3-bedroom, 2-bathroom home is 1, 486 sqft and features an attached 2-car garage on a generous corner lot. Built in 2004, it boasts incredible curb appeal with mature landscaping and vibrant seasonal flowers (see owner's pictures). Recent updates include a new roof (2025), HVAC and ductwork (2020), washer, dryer, microwave, and dishwasher (2025), and a brand-new never swam-in before above-ground pool with new liner and pump (previous pool began leaking last year. New pool installed by Griffin Pools and is currently winter-covered and ready for summer fun!) The thoughtfully designed split floor plan offers two well-sized bedrooms and a full bath on one side of the home. The main living area features a vaulted ceiling, gas fireplace, and abundant natural light overlooking the backyard. This space flows seamlessly into an open kitchen with stained cabinets, ample counter space, stainless steel appliances, and a cozy eat-in area. The spacious master suite is your private retreat, complete with vaulted ceiling, and full bathroom with large vanity and walk-in closet. Above the garage is a finished, heated and cooled bonus room perfect for an office, gym, playroom, or additional living area. There's even an open alcove with that can function as a closet. And, if one desired, you could add a door converting the alcove to a closet and making this a true 4th bedroom. Step out the back door onto a spacious deck, ideal for relaxing or entertaining. The deck overlooks the pool and large fully fenced backyard. Perfectly tucked away for privacy yet conveniently close to I-20, Harbison shopping, and zoned for award-winning schools. Don’t miss your chance to make this beautiful home your own! Disclaimer: CMLS has not reviewed and, therefore, does not endorse vendors who may appear in listings.