In his fourth NBA season, House appeared in 60 regular season games for the Rockets. He started 52 of those contests and posted averages of 10.5 points, 4.2 rebounds, 1.3 assists and 1.1 steals in 30.4 minutes per game. House Hit 36.3 percent of his career-high 5.6 three-point attempts per game. In a Nov. 27 win over Miami, House poured in a season-high 23 points, adding four rebounds, two assists and two steals. He hit a season-high six three-pointers in a win over Charlotte on Feb. 4, finishing with 22 points, nine rebounds and three steals in 42 minutes. House again drained six three-pointers on his way to 20 points in a seeding-game win over the Mavericks on Jul. 31. He posted his first of two double-doubles against the Jazz on Jan. 27, finishing with 21 points, 11 boards, and a season-high five steals. On Feb. 2 against New Orleans, House finished with 12 points and a season-high 12 rebounds in 28 minutes. In the postseason, House set a new career-playoff-high with 21 points in Game 4 of the Rockets' first-round series against Oklahoma City.

Danuel House Jr. saw his role grow substantially in his third NBA season, as the 25-year-old saw 25 minutes per game in 39 appearances with the Rockets. He also played in 18 games with the G League Rio Grande Valley Vipers. The forward started the 2018-19 season with Rio Grande Valley, appearing in seven G League games. Then, beginning Nov. 26, House played 25 straight NBA games for Houston. That stretch included an 18-point, five-rebound effort in a Nov. 28 a loss to the Mavericks. On Jan. 15, House and the Rockets were unable to agree on a contract adjustment, which led to House returning to the Vipers. House played 11 more G League games before returning to the Rockets on March 15. Four days later, House drained a career-high six three-pointers during a win over the Hawks. The 39 total NBA games were a career high for House, who had logged 24 NBA games total with Phoenix and Washington over the two prior seasons. House averaged 9.4 points, 3.6 rebounds and 1.9 threes over the course of the season, boosting those numbers to 11.2 points, 4.2 rebounds and 2.2 triples in 13 starts. He came off the bench for the Rockets during their first seven playoff games, but a foot injury forced House to miss Houston's remaining four post-season contests.

House spent most of the 2017-18 season in the G-League with both the Northern Arizona Suns and the Rio Grande Vipers. When House did receive playing time with Phoenix, he generally played well. His per-36-minute numbers -- 13.6 points, 6.8 rebounds and 2.2 assists -- were strong. House finished the season particularly well. He saw action in each of Phoenix's final seven games, averaging 29.9 minutes over that span, and scored 10 or more points in four of his last five appearances during the regular season. On April 8, he tallied a career-high 22 points in a loss to Golden State. House drained a pair of three-pointers in that game and contributed eight rebounds and three assists for good measure. House was solid from the free-throw line (80.6 percent) during the season and shot a very respectable 43.4 percent from the field. He also made 25.9 percent of his three-point attempts.

Daniel House went unselected in the 2016 NBA Draft. He then joined the Washington Wizards to play in the Las Vegas Summer League. There, he averaged 11.2 points, 3.2 rebounds and 1.2 steals in five games. Subsequently, Washington signed him to a contract. On Nov. 11, he made his NBA debut. He played less than a minute against Cleveland and grabbed one rebound. House was then assigned to the D-League to play for the Delaware 87ers. In his second game with Delaware, he scored 24 points, grabbed seven rebounds and tallied three steals. However, House was diagnosed with a fracture in his right wrist on Nov. 30 and did not play again until mid-February. When he returned, he was again assigned to play for Delaware in the D-League. House scored 22 points in his return to action, drilling 5-of-6 three pointers. In seven total games for the 87ers, House generated 13.3 points, 5.7 rebounds, 1.9 three-pointers and 1.1 steals per D-League contest.