Montrouge is a city in the Hauts-de-Seine department, in the Île-de-France region. It covers an area of 2.06 km². In 2018, 48,734 people lived there. Thus, it is one of the most densely populated municipalities in France.
The Hauts-de-Seine prefecture is located in Nanterre. It manages the public services of Montrouge. For any administrative procedures, the residents of Montrouge must turn to the prefecture in Nanterre.
In Montrouge, the Hauts-de-Seine prefecture does a lot. It assists with security, urban planning, and much more. This place is very important for the Montroguiens.
The Hauts-de-Seine prefecture manages public services in Montrouge
The prefecture in Nanterre takes care of the public services in Montrouge. It helps the city in several ways:
– It maintains order and protects people with the police.
– It oversees the city plan and ensures that the rules are followed.
– It manages the environment to keep it clean and handles waste management.
– It assists people in need through social actions.
This is very important for the residents of Montrouge. The prefecture helps them with the public services of the city.

Which prefecture for Montrouge? Key public services
In Montrouge, for important paperwork, one goes to Nanterre. That is where the Hauts-de-Seine prefecture is located. There, one can find many important public services:
| Public Service | Contact |
|---|---|
| Partial activity | The application must be submitted only by tele-declaration Contact by email: idf-ut92.activite-partielle@drieets.gouv.fr Phone: 01 47 86 41 80 |
| Professional training | The submission of requests for activity declaration numbers is done by mail to the address: Drieets Ile-de-France, Regional Control Service, 19 rue Madeleine Vionnet, 93300 Aubervilliers |
| Labor Honor Medals | Applications must be submitted only in a dematerialized manner on the "Démarches-simplifiées" website starting from May 2, 2022 |
| Employment Safeguard Plans (PSE) and mutual agreements | Contact by email: idf-ut92.homologation-pse@drieets.gouv.fr Phone: 01 47 86 41 89 |
For partial activity, professional training, labor medals, or PSE, the location is the same. At the Hauts-de-Seine prefecture in Nanterre, one takes care of their paperwork.

Getting to the Nanterre prefecture from Montrouge
People from Montrouge can go to the prefecture in Nanterre for their affairs. In the Raincy district, one can easily go there by car or bus.
Driving is easy from Montrouge. It takes about 15 minutes from the center of Montrouge. Directions from Paris are available online. There is parking near the prefecture, on rue des Trois Fontanot.
Taking the bus or train is another option. The Transilien line L, the RER A, and buses connect Montrouge and Nanterre. It takes between 20 and 30 minutes by public transport.
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