'Family Feud Dream House' Unlock Code: No Such Game Element Exists

There is no "Family Feud Dream House" unlock code.

• The TV show Family Feud has no "Dream House" prize or game mechanic.
• Video game adaptations (Family Feud 2020, Family Feud Live!, mobile versions) don't feature a house-unlock system.
• You may be conflating with:

• Monopoly "Dream House" (a variant?)
• The $100,000 Question / Who Wants to Be a Millionaire "dream home" prizes.
• HGTV / Dream Home sweepstakes (unrelated to Family Feud).

If you're playing a specific Family Feud video game and see a locked house, share the platform and exact menu text—I can check that title's wiki.