Plans to convert two office blocks into more than 35 new flats have been submitted to the council.
The owners of College House, in College Road in Harrow town centre have handed in proposals to Harrow Borough Council to covert the block into 30 flats.
In the same week the owners of Bridgen House in Byron Road, Harrow, submitted plans to convert the building into six self-contained homes.
The two submissions are the latest proposals to turn office space in the town centre into new homes, with 24 planned for First National House, next to Harrow-on-the-Hill station.
Measures to make converting offices into homes easier were brought in by the Government last year to provide more housing.
The changes to regulations mean developers only now need prior approval, rather than full planning permission, to get change of use from office to residential.
The policy has been attacked by London Assembly Member for Harrow and Brent Navin Shah, who called for the plans to be reversed as they ignore the concerns of the nearby communities.
There were also concerns from the Campaign for a Better Harrow Environment over the quality of the housing which will be provided as a result of the conversion.