infill
noun [ U ]
PROPERTY ukusdevelopment of new houses, business buildings, etc. on land between other buildings in already developed areas:
The mayor included $2 million in his current city budget to buy land for infill and redevelopment throughout the city.
Infill housing is expensive and not everybody who wants a house wants to live downtown.
Experts also suggest that the trend toward infill development can reduce the reliance on driving.