Spanish to English Law/Patents Law (general) Colombian legal document/property description

Dear colleagues:

I would appreciate some help with "cierre en".

US English please.
Del punto E al punto A: **Cierre en **línea quebrada y dimensiones sucesivas de dos metros treinta centímetros (2.30 m), diez centímetros (0.10 m) y cuatro metros setenta y cinco centímetros (4.75 m), muros comunes que lo separan parte del Apartamento mil doscientos uno (1201) del mismo interior y parte de zona común del edificio. POR EL CENIT: Con placa común que lo separa del piso del edificio.

My attempt (I have another question which I will post separately dealing with "placa común" which I have tentatively translated as "shared connector plate":

I found this: http://www.proz.com/kudoz/spanish_to_english/construction_ci... (commmon/shared connector plate/bracket OR half plate shared with by two structures). I am not sure of any of these.

xxxx a broken line and successive dimensions of two meters thirty centimeters (2.30 m), ten centimeters (0.10 m) and four meters seventy-five centimeters (4.75 m), shared walls separating it from Apartment one thousand two hundred and one (1201) on the same landing and part of the common area of the building. THE HIGHEST LEVEL: with a shared connector plate separating it from the floor of the building.

Thank you so much. *This is a Colombian document*.
Taña