Discover a rare investment opportunity in Denver's highly sought-after Sunnyside neighborhood! This up/down duplex offers versatility for both owner-occupants and investors alike. Each unit features 3 spacious bedrooms and 1 full bath, with the lower unit currently leased through August 31, 2026 at $2,050 per month, providing immediate rental income and long-term stability. Thoughtfully maintained and tastefully updated, the property has received numerous recent improvements for peace of mind and curb appeal. Major exterior upgrades completed in 2021 include a new 3-car driveway, brand new fence, garage doors, carport siding, soffit, fascia, gutters, and downspouts, a new front entry awning, and fresh exterior paint. Additional updates include new egress windows (3) for added safety and natural light, a new roof (2021), and new windows throughout (2019). Inside, the upper-unit bathroom was fully renovated in July 2025, giving it a modern, refreshed feel. New evaporative cooler and HVAC system. Perfectly situated near Denver's vibrant dining and entertainment corridors, parks, and light rail, this property combines the charm of a classic Denver duplex with the reliability of thoughtful upgrades and strong rental potential. Whether you're looking to live in one unit and rent the other, or add a turn-key income property to your portfolio, 1100 W 43rd Ave offers flexibility, location, and lasting value in one smart investment.