Uccle sits in the Brussels-Capital Region, about 100 m above sea level, in the Europe/Brussels timezone. Its temperate oceanic climate brings mild summers that can reach around 31°C, cold winters with lows near -6°C, and high humidity year-round at 79%, with frequent cloud cover and rain typical of the Brussels suburbs. Expats tend to settle in Prince d'Orange and Fort-Jaco, two neighborhoods that anchor a large and active expat community. The population is 84 thousand, and English is widely spoken, which eases the transition for newcomers arriving from elsewhere.
Monthly costs depend heavily on where you rent and how you live. A one-bedroom apartment in the city centre runs $1,350/mo, while outside the centre it drops to $1,050/mo. Three-bedroom units are $2,400/mo in the centre and $1,850/mo outside it. For a single adult, the budget tier totals $2,450/mo including rent, the mid-range tier reaches $3,200/mo, and the comfortable tier comes to $4,500/mo. Excluding rent, a single person spends about $1,100/mo, and a family of four about $3,600/mo. The cost of living index is 70/100 against New York City at 100, and average internet speed is 85 Mbps.
Safety is a strong point, with a safety index of 85/100 and a crime index of 15/100, where lower is safer. Air quality sits at 45 on the index, where lower is better. Healthcare quality is rated excellent, giving residents confidence in the medical system. These factors help explain the overall expat score of 78/100, along with a digital nomad score of 80/100, a retiree score of 69/100, and a FIRE score of 67/100.
For longer stays, Belgium offers the Long Stay National Visa (D-visa) for retirees and the Belgium Digital Nomad Visa, which requires a minimum monthly income of $765/mo. The nearest airport is BRU, just 9 km away, making arrivals and departures straightforward. Uccle suits remote workers, retirees, and families who want a calm, green Brussels suburb with strong safety, excellent healthcare, and a well-established expat network, while keeping city centre rents and daily costs within reach for those who plan around the mid-range or comfortable tiers.