Hi there, thanks for writing to us on AskGuru.
Our listings here show that there are no available units at the moment. You may check our listing here from time to time: https://www.propertyguru.com.sg/singapore-property-listing/hdb/tampines/tampines-street-43_110041/435
Alternatively, you may wish to engage an agent who will be able to source for a unit at Block 435 Tampines Street 43.
Hope this answers your question.