Product design question
Design a washer/dryer for urban living.
- Product design
- Medium
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What this question tests
Whether you can design a physical product against a real constraint, limited space, rather than a generic feature list.
How to approach it
- Clarify the primary constraint: small apartment space, meaning the design must solve for footprint before anything else.
- Identify the target user: urban renters, often without in-unit laundry today, needing a compact, stackable, or combined solution.
- Prioritize a combined washer-dryer unit or a stackable pair, since floor space is the dominant pain point, not wash quality.
- Address secondary pain points: noise for shared-wall apartments and venting for dryers in units without outdoor access.
- Propose a concrete concept: a compact ventless combo unit that vents into a water reservoir instead of requiring external ducting.
- Define success metrics: install rate in units without existing hookups, with a guardrail on cycle time and noise complaints.
What a strong answer includes
- Anchors the entire design around the space constraint first, rather than starting with wash features.
- Addresses the ventless requirement specifically, since many urban units have no dryer venting access at all.
- Names a real competing constraint, noise in shared-wall buildings, and designs around it.
- Gives a guardrail metric, cycle time, since ventless designs often run slower and that tradeoff needs to be managed.
Common mistakes
- Designing a full-size unit with more features instead of solving the actual space and venting constraints.
- Ignoring venting and noise, which are the real blockers to laundry in dense urban housing.
Likely follow-up questions
- How would you validate the noise level is acceptable for shared-wall buildings?
- What would you cut first if the ventless design made cycle times too long?
More product design questions
- Design a TV for a car.Google · Product design · Hard
- Design a refrigerator for the blind.Google · Product design · Hard
- How do you design a camera for the elderly?Google · Product design · Medium
- Redesign Twitter for eCommerce.Shopify · Product design · Hard
- How would you go about designing a new location sharing app for Google?Google · Product design · Medium
- How would you improve Google Home?Google · Product design · Easy
More questions from Google
Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop