Learn Hardcore Japanese: watasi no ie ha sizuka desu.

In Japanese, の is the possessive (genitive) particle. It links two nouns, showing that the first noun belongs to or modifies the second.
• 私 (I) + の + 家 (house) → 私の家 (my house)

What role does the particle は play in this sentence?

は is the topic marker. It tells us what the sentence is about. Here, 私の家は means “As for my house…” and what follows (the predicate) gives information about that topic.

Why not use が instead of は here?

• は marks the topic—information you assume the listener already knows or that you want to contrast.
• が marks the subject—often new information or something you want to emphasize.
Since you’re simply describing a known topic (“my house”), は is the appropriate choice.

Why is 静か followed by です? Can’t we just say 私の家は静か?

静か is a な-adjective (adjectival noun). To predicate it politely, you attach the copula です.
• Plain form: 静かだ
• Polite form: 静かです
Without だ/です the sentence isn’t grammatically complete.

What’s the difference between 静かだ and 静かです?

• 静かだ = plain (informal) copula with a な-adjective.
• 静かです = polite copula.
Use 静かだ among close friends or in writing; use 静かです in formal or polite contexts.

Why is the verb/cell “copula” (です) at the end of the sentence?

Japanese has a Subject/Topic–Object–Verb (SOV) word order. Even when there’s no direct object (because 静か is a predicate adjective), the copula です still comes at the end, just like verbs do in Japanese.

How do you pronounce 家, and are there other common words for “home”?

• 家 is pronounced いえ (ie) when you mean “house.”
• Another common word is うち (uchi), which often means “home” or “one’s place” in a more personal sense.