What is the way to calculate the Floor Space Index?

If you are a real estate investor or are considering making an investment in the real estate market, you will frequently come across esoteric transactional lingo that appears to be rather complicated. Understanding these complicated words is critical when making property acquisition decisions. It’s critical to have a complete understanding of any legal jargon before making a property purchasing choice.

If you’re thinking about investing in real estate, you should be familiar with terms like Floor Space Index (FSI).

importance of FSI for real estate developers

What is the FSI (Floor Space Index)?

We need the coordinates of the usable area of the floor in the house, as well as the total area of that specific property, to define Floor Space Index. When we talk about the gross area of a property’s floor, we’re talking about the whole area of the floor as well as the outer side of the walls facing the outside of the building.

When the Floor Space Index is 100 percent, the entire property is available for use. When the FSI is less than 100 percent, it means that a portion of the property’s land is still undeveloped. When the FSI is greater than 100 percent, it means the property in question has many levels.


The Floor Space Index is calculated using a formula (FSI)

The following is the arithmetic formula for calculating FSI:

– FSI = Area on which the home is built / Plot Area

For example, if a property’s area is 6,000 sq. ft. and its FSI is 100 percent, the entire 6,000 sq. ft. building is constructed on a 6,000 sq. ft. site.

If only 3,000 square feet of the 6,000 square feet of available space were used to construct the structure, the FSI would be 50%.


FSI is influenced by a number of major elements.

The FSI is normally calculated according to the procedures established by a given zone’s municipal corporation, and the value might vary significantly from state to state and city to city. The value of FSI is mostly determined by local legislation and geographical limits.

The following are some of the primary criteria that have a significant impact on the allowed FSI:

– Property size

– Building type (residential flats, commercial buildings, etc.)

– Building location

– Availability of the basic amenities like water, power, sewer lines, and others

The FSI of older, established, and metropolitan cities differ to some extent from the value of FSI in developing or incoming areas. A city’s FSI value could change at any time, depending on the value of the land as well as development requirements.

FSI is frequently affected by extra constraints such as driveways, shafts, porches, service areas, lifts, and so on. For example, the basement parking area, as well as the stilt parking, are not considered to be part of the FSI. Certain cities, however, continue to classify covered parking as FSI.

calculate the Floor Space Index

FSI’s Importance for Homebuyers

Before purchasing a property, every homebuyer must evaluate a few legal requirements as well as the building limits. The FSI is an extremely important factor to consider. A higher FSI indicates that the housing complex will contain high-rise structures. As a result, more people will be able to enjoy community amenities such as gardens, pools, power, elevators, parking, and water supplies.

A lower FSI, on the other hand, would indicate that fewer people would use the community facilities of the housing complex. This would undoubtedly make the tenants’ living quarters more pleasant. In the case of individual residences, a higher FSI value indicates that the homebuyer in question will be allowed to build a house with more stories or usable areas.

The FSI is determined by taking into account factors such as the project’s geographic location, the total population in a given area, the availability of underused open areas or greenery, the construction and sustainability plan, the population density, and so on. When it comes to ensuring that there is enough open space in the event of a natural disaster, the value of FSI should not exceed 250 percent. As a result, a homebuyer should seek out a house or property with a lower FSI value.


What is the importance of FSI for real estate developers?

Real estate developers seek a higher FSI because it allows them to make more money. By focusing on vertical building growth, a greater FSI value can be reached. A higher FSI would almost certainly lead to the construction of a high-rise structure and the sale of more housing units to homeowners.

The overall urbanization of developing regions, as well as homes for each plan, would enable developers make more money and close the current real estate supply-demand mismatch.

As a homebuyer, being aware of FSI is essential since it determines the quality of life and the safety of a certain housing complex to some extent.



We are the Real Estate Web Portal to Buy Sell and Rent properties in Navi MumbaiMumbai, and Thane. We can help you Buy Properties at Affordable Prices at your desired location. For more information, Call Us On +91 8433959100


If you want daily property update details please follow us on Facebook Page / YouTube Channel / Twitter


Disclaimer: The views of this expressed above are for informational purposes only based on the industry reports & related news stories. Navimumbaihouses.com does not guarantee the accuracy of this article, completeness, or reliability of the information & shall not be held responsible for any action taken based on the published information.
Back to top

Related Posts


  • tisha 3 months ago

    I’m really impressed with your writing skills as well as with the layout on your blog.
    Is this a paid theme or did you modify it yourself?

    Anyway keep up the nice quality writing, it is rare to see a great blog like this one nowadays.

  • salamatikhabari 3 months ago

    I’m no longer certain the place you are getting your information,
    however good topic. I needs to spend a while studying much more or working out more.

    Thank you for magnificent info I was on the lookout for
    this information for my mission.

  • jahankhabari 2 months ago

    I was curious if you ever considered changing the structure of your website?
    Its very well written; I love what youve got to say.
    But maybe you could a little more in the way of content so people could connect with it better.

    Youve got an awful lot of text for only having 1 or 2 pictures.
    Maybe you could space it out better?

  • news 2 months ago

    For latest information you have to pay a quick visit world
    wide web and on internet I found this web site as a most excellent site for newest

  • News 2 months ago

    Thank you, I have recently been looking for info approximately this subject for a while and yours is the best I’ve found out so
    far. But, what about the conclusion? Are
    you certain in regards to the source?

  • ecokhabari 2 months ago

    This is my first time go to see at here and i am truly
    pleassant to read all at one place.

  • vernit 2 months ago

    Have you ever thought about including a little bit more than just your articles?
    I mean, what you say is important and all. But imagine if you
    added some great visuals or videos to give
    your posts more, “pop”! Your content is excellent but with pics and clips,
    this site could definitely be one of the best in its niche.

    Good blog!

  • autokhabari 2 months ago

    Pretty! This was an extremely wonderful post. Thanks for providing this information.

  • jestine ruatoka 2 months ago

    Heya! I just wanted to ask if you ever have any trouble
    with hackers? My last blog (wordpress) was hacked and
    I ended up losing several weeks of hard work due to no
    back up. Do you have any methods to protect against

  • sam 2 months ago

    I think the admin of this website is truly working hard in support of his web site, for the reason that here every data is quality based stuff.

  • salam 2 months ago

    Today, I went to the beachfront with my kids. I found a sea shell and gave it
    to my 4 year old daughter and said “You can hear the ocean if you put this to your ear.” She put the shell to her ear and screamed.
    There was a hermit crab inside and it pinched her ear.
    She never wants to go back! LoL I know this is completely
    off topic but I had to tell someone!

  • subham 2 months ago

    It’s genuinely very complicated in this busy life to listen news on TV, thus I simply use world wide web for that reason, and get the most up-to-date information.

  • rohit 2 months ago

    Good replies in return of this question with genuine arguments and explaining everything regarding that.

  • anket 2 months ago

    I all the time used to read post in news papers but now as I am a user of internet thus from now I am using net
    for articles, thanks to web.

  • rakesh 2 months ago

    This is very interesting, You’re a very skilled blogger.

    I’ve joined your rss feed and look forward to seeking more
    of your magnificent post. Also, I have shared your website in my social networks!

  • ravi 1 month ago

    Does your site have a contact page? I’m having
    trouble locating it but, I’d like to send you an e-mail.
    I’ve got some recommendations for your blog you might be interested in hearing.
    Either way, great blog and I look forward to seeing it develop over time.

  • Lena 1 month ago

    I know this website gives quality dependent articles or reviews and extra data, is there any other web site which provides these
    stuff in quality?

  • jamie 1 month ago

    wonderful put up, very informative. I’m wondering why the other specialists of this sector do not understand this.
    You must continue your writing. I am confident, you have a great readers’ base already!

  • jahan 1 month ago

    Excellent way of describing, and fastidious article to obtain facts about my
    presentation subject matter, which i am going to present in college.

  • samie 1 month ago

    Greetings from Idaho! I’m bored to death at work so I decided to browse your
    site on my iphone during lunch break. I really like the information you provide here and can’t
    wait to take a look when I get home. I’m amazed at how quick your blog loaded on my mobile
    .. I’m not even using WIFI, just 3G .. Anyhow, amazing site!

  • Priyanka Sharma 1 month ago

    Touche. Great arguments. Keep up the good spirit.

  • kajal awasti 1 month ago

    I do not even know how I ended up here, but I thought this post was great.
    I do not know who you are but certainly you’re going to a
    famous blogger if you aren’t already 😉 Cheers!

  • dinesh 1 month ago

    I do consider all the ideas you have presented for
    your post. They’re really convincing and can certainly work.
    Still, the posts are very brief for newbies.

    May you please lengthen them a bit from subsequent time?

    Thank you for the post.

  • sudhir 1 month ago

    Hi, everything is going fine here and ofcourse every one is sharing information, that’s truly excellent,
    keep up writing.

  • rishab 1 month ago

    Appreciating the dedication you put into your website and in depth information you provide.
    It’s awesome to come across a blog every once in a while that isn’t the same out of date
    rehashed information. Great read! I’ve saved your site and I’m
    adding your RSS feeds to my Google account.

  • ruturaz 1 month ago

    Hi, my friend! I want to say this post is awesome, nicely written, and includes approximately all significant Infos. I would like to peer extra posts like this.

  • Matt 1 month ago

    Howdy! Would you mind if I share your blog with my facebook group?
    There’s a lot of people that I think would really enjoy your content.
    Please let me know. Thanks

  • monika 1 month ago

    Pretty! This has been an extremely wonderful article. Thank you for supplying this

  • samad khan 1 month ago

    I must thank you for the efforts you’ve put in penning this site.
    I really hope to view the same high-grade blog
    posts from you later on as well. In truth, your creative writing abilities has encouraged me to get my own, personal blog now 😉

  • tushar bhatiya 1 month ago

    Does your website have a contact page? I’m having a tough time locating it
    but, I’d like to send you an email. I’ve got some recommendations for your blog
    you might be interested in hearing. Either way,
    great site and I look forward to seeing it grow over time.

  • Adela 1 month ago

    Useful information. Lucky me I discovered your website unintentionally,
    and I am stunned why this accident didn’t came about in advance!
    I bookmarked it.

  • surbhi 1 month ago

    I needed to thank you for this very good read!! I absolutely
    loved every bit of it. I have got you bookmarked to check out new stuff you post…

  • Selena 4 weeks ago

    Howdy! This is kind of off topic but I need some advice from an established blog.
    Is it hard to set up your own blog? I’m not very techincal but I can figure things out pretty quick.
    I’m thinking about making my own but I’m not sure where to start.
    Do you have any points or suggestions? Thank you

  • rashmika 4 weeks ago

    Hello there I am so excited I found your web site, I
    really found you by error, while I was searching on Google
    for something else, Regardless I am here now and would
    just like to say cheers for a remarkable post and a all round thrilling blog (I also love the theme/design),
    I don’t have time to read through it all at
    the minute but I have book-marked it and also added
    your RSS feeds, so when I have time I will be
    back to read a lot more, Please do keep up the great jo.

  • kuldeep 4 weeks ago

    Hi there would you mind letting me know which webhost you’re utilizing?

    I’ve loaded your blog in 3 completely different internet browsers and
    I must say this blog loads a lot quicker then most.
    Can you suggest a good internet hosting provider at a reasonable price?
    Many thanks, I appreciate it!

  • ravi yadav 4 weeks ago

    Wow, that’s what I was looking for, what a material!
    existing here at this web site, thanks admin of this website.

  • shakshi 4 weeks ago

    When someone writes an post he/she keeps the plan of
    a user in his/her mind that how a user can understand it.
    So that’s why this piece of writing is great. Thanks!

  • lakshmi 4 weeks ago

    I have been surfing online more than 2 hours today, yet I
    never found any interesting article like yours. It’s pretty worth enough for me.
    In my view, if all web owners and bloggers made good
    content as you did, the net will be much more useful than ever before.

  • ruturaz 4 weeks ago

    Thanks in favor of sharing such a nice thought, piece
    of writing is fastidious, thats why i have read
    it completely

Leave a Reply