DLL - Dr. Dieter Langen Liegenschaften is a regional, medium-sized real estate portfolio manager specializing in residential and commercial properties in the greater Mönchengladbach area and the left bank of the Lower Rhine. Originating in the textile industry, the family business shifted its focus to the real estate sector in the early 1960s. With a powerful team of commercial and industrial employees, a qualified core of tradespeople and service providers, and in cooperation with institutions, associations, and clubs in the city and surrounding area, DLL today ensures that its properties are maintained in good to optimal condition, that the needs of its tenants are expertly and reliably identified, and that any problems that arise are resolved professionally, sustainably, and quickly. DLL is also continuing to expand and invests in the acquisition of new properties (Profil) and the modernization of existing properties.