This is the 4714th most frequent Russian word.
жилищного
"Жилищного" means "housing" or "related to housing."
In this sentence, "жилищного" is used as an adjective form related to "жилище" (housing or living accommodation), specifically modifying the noun "фонд" (fund). Thus, it describes something pertaining to housing.
Городской совет обсуждает новые меры для улучшения жилищного фонда.
The city council is discussing new measures to improve the housing fund.
Here, "жилищного" again acts as an adjective describing "строительство" (construction), indicating that the construction is related to housing purposes.
В рамках жилищного строительства начнётся проект новых многоквартирных домов.
As part of housing construction, a project of new apartment buildings will commence.
In this use, "жилищного" modifies "кредитования" (lending or crediting), signifying a specific type of financial program centered around housing needs.