Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Teachers ( address_id VARCHAR, first_name VARCHAR )
TABLE: CREATE TABLE Addresses ( zip_postcode VARCHAR, address_id VARCHAR )

### Question ###
What is the zip code of the address where the teacher with first name 'Lyla' lives?

### Accurate SQL ###

SELECT T1.zip_postcode FROM Addresses AS T1 JOIN Teachers AS T2 ON T1.address_id = T2.address_id WHERE T2.first_name = "Lyla"