It's a ten minute walk.

Today, we will talk about how far your house is from the nearest subway/train station. In North America, this is not so useful because people use their cars to go everywhere but in Europe, trains and subways are common. They are also common on the East coast of the U.S. and in Central Canada(Ontario and Quebec). You can also use these structures to talk about how long it takes to walk somewhere.

The first structure we use when talking about how long it takes to walk somewhere is:

on foot or sometimes by foot

I think on foot is much more natural but both are grammatically correct. These days, on foot is used more often...

A: Where do you live?

B: I live in Kyoto.

A: How long does it take you to get to the nearest station?

B: It takes about 10 minuteS on foot (by foot).

The second structure you can use to answer this questions is a noun phrase. This is like in Japanese when you use の to nominalize verbs.

私は読むのが好きです。
Watashi wa yomu no ga suki desu.
I like reading.

So if you want to use a noun phrase, you say:

It's a ten minute walk.

You can see here there is no S, this is because it is a noun phrase "A ten minute walk" so it is treated as a noun, for example like "a banana".

Have a good week~!

Phil