Local mosques play an important role in the identity of neighborhoods. These mosques actually define the functional, social, and cultural center of neighborhoods. So that these mosques are used during the week for holding prayer ceremonies and on special days for needs and functions such as I’tikaf, funeral ceremonies, helping the needy, holding mourning ceremonies, and reviving the Nights of Power. The architecture of local mosques in Tehran has various designs, some of which have an architectural identity and some of which have weaknesses and problems in this regard. The aim of this article is to present a design pattern of local mosques for the city of Tehran using the architecture of Sajjad and Lorzadeh Mosques. This article is of a qualitative and interdisciplinary type that has been conducted with analytical and field research methods. The analytical research method is in the form of text content analysis and the field method is in the form of extracting the architectural pattern of Sajjad and Lorzadeh Mosque and extracting the architectural and functional plan of the mosque. The architecture of Sajjad and Lorzadeh Mosque has micro-spaces that are hierarchically arranged in accordance with the location of the land and neighboring uses: This mosque has two separate entrances for men and women, with men entering and exiting from the entrance on Jomhouri Street and women entering and exiting from the entrance on the Fakhrazi side street. The entrance to the mosque is done through a hierarchical spatial system in the following order: 1- Entrance 2- Entrance threshold and corridor 3- Covered and multipurpose space of the mosque for men 4- Covered and multipurpose space of the mosque for women 5- Wall and door to the main space 6- The main space for holding daily prayers with decorations and a ceiling of muqarnas and bowls, part of which is reserved for women with a curtain 7- Prayer altar 8- Security and the office of donations and public donations of the mosque. 8- Side rooms 9- Bathroom in the basement (level 1-). 10- Second floor.