Answer:
Lower price for new houses.
Explanation:
The decrease in the income of people will decrease the demand for houses and the demand curve will shift leftwards. Meanwhile, the decrease in the wages for carpenters, plumbers, etc will decrease the cost of production so the producer will supply more when the cost of production decreases. So supply curve will shift rightwards. Resulting there will be lower prices due to shifts in the leftward demand curve and rightward supply curve.