Wellen currently has 2 apartments for rent. Monthly rents run from €850 to €1,000, with an average of €925. Apartment buildings and flat blocks represent 11.8% of the municipality’s building stock, while houses make up 87.9% and apartment buildings overall account for 12.1%. The wider building breakdown is 52.9% open-type houses, farms and castles, 29.1% semi-closed houses, 11.8% buildings and flat blocks, 3.6% closed houses, 1.9% commercial houses and 0.7% other types. Buildings date on average from around 1963; the average number of rooms is about 6.2.
The municipality has 7,372 residents within 26.8 km². Average age is 44, and men make up 50.1% of the population. Some 84% of residents own their homes, while average net income per person is €19,346 per year. Nationalities are 97.8% Belgian, 0.7% Dutch, 0.3% Polish, 0.1% Italian, 0.1% Spanish, 0.1% German, 0.1% Filipino and 0.7% other. There is an average of 1.4 cars per household, compared with 1.3 nationally. Local roads include the N754, N767 and N777. The A13 / E313 towards Antwerpen, Hasselt and Liège is 11 minutes by car from central Wellen, and the A3 / E25–E40–E42 towards Brussels, Leuven, Liège, Eupen and Aachen is 21 minutes away.
Five bus lines serve Wellen. De Lijn line 23a runs between Sint-Truiden and Tongeren, line 3 links Hasselt, Wellen, Borgloon and Heers, and line 38 connects Hasselt, Kortessem, Borgloon and Heers. Belbus 700 serves Alken–Wellen and belbus 709 Borgloon–Wellen. No metro or tram services are listed. Stations available are Alken, Diepenbeek, Hasselt, Tongeren and Sint-Truiden. There are 2 nurseries, including Kinderdagverblijf De Hartediefjes and Het Appeltje, plus 3 nursery schools and 3 primary schools. Go! Next Basisschool De Eik and Vrije Basisschool - De Bron are among the named schools. Wellen has no secondary school.
Among the local businesses are 44 firms growing pome and stone fruits, 43 hairdressing and beauty-treatment businesses, 26 management and business consultancies, 24 restaurants and mobile food services, 22 residential and non-residential building firms, and 20 head offices. No supermarkets or shops are specified in the information available. Shared bicycles and shared cars are not offered in Wellen, and there is no known EV charging station. Liège Airport is 30 minutes away by car, or 116 minutes using public transport. These local figures and connections provide the setting for the 2 apartments currently available to rent.