Single-family home sales across the Houston area were up 7.4 percent in November, the third straight month of year-over-year increases since Hurricane Harvey.

Homes priced between $100,000 and $250,000 saw the strongest sales gains while demand for luxury homes declined compared with last year, according to the latest report from the Houston Association of Realtors.

Inventory inched up last month though supply remains constrained.

RELATED: Harvey-flooded homeowners struggle as mortgage bills pile up

Now Playing:

Anchor Isiah Carey with Houston organizer Mary Moreno and Christina Quintero, who has been devastated by Hurricane Harvey

Media: Fox 26 Houston

"The key to boosting supply will be restoring salvageable homes to sellable condition and ramping up new construction, both of which we want to see sooner than later," HAR chairwoman Cindy Hamann said in a statement.

The median price last month for a single-family home was flat at $225,725.

On a year-to-date basis, home sales are 3.3 percent ahead of the 2016 volume.

RELATED: Harvey damage could force hundreds in Houston area to raise their homes

Townhome and condominium sales, however, fell 3 percent in November to 483 units. The median price fell about the same amount to $158,100 as inventory grew to a 3.8-month supply, based on HAR's data of sales handled through the Multiple Listing Service primarily throughout Harris, Fort Bend and Montgomery counties.