you may want to take a look at this add-on:

https://www.concrete5.org/marketplace/addons/page-list-maps-and-geoc...

You don't really need to create a block or a package - you could achieve this through the use of page attributes and page lists and it would require quite little in the way of coding.

In general I mean - create some page attributes like house_image, house_price, house_description etc and use these in a custom page list block template.

You could then reuse these attributes when rendering the page for each individual house.

But If I use this approach then I have to create dynamically more than hundred pages for houses. so can I create a package with only two page one for listing of houses and other for detail of house?

So you want a house list block, and a single page "detail" page to pass all the house through?

If so, then fine. But either way you have to create some type of object for the houses. A page is just a fancy object with attributes already built it.

There are a few real estate packages in the marketplace that provide bulk entry.

Or you could use a shop / eCommerce addon where each property is a product.