@Anthony DooleyReturn on investment is a function of how much you have to invest.

If the age of your equipment is older, or it stops functioning, those repairs can also add up.

Just curious... what’s your ultimate goal for that office space..are you looking to boost resale value, or is it more about having a functional retreat above the garage?

You might be shocked by the amount of toilet paper some people use for their "functions" and some of the fancier stuff does not disintegrate as easily.Personally, I cannot remember a single place I've ever stayed in my life - STR, hotel, whatever - that I can remember liking or disliking the toilet paper.

It is currently a glorified finished attic with little room- Use addition and raise it up and extend it to the side of the home for more finished space and room for deck, washer/dryer room etc- Make the living space as functional as possible with the added sqft- Add outside living structures like deckThis is a fairly wealthily area and I want to maximize my ROIWhat are some things you recommend for a large scale project like this and what are some hurdles ?

Quote from @Bruce Woodruff: Quote from @Jonathan Greene: Quote from @Bruce Woodruff: I think that this BP forum takes on that deal-killer function very well......at least it can if/when investors take the time to post their questions and concerns.It should, but because some (not all) investors are fragile about criticism or prefer an echo chamber, it often falls into a back-and-forth where we are trying to help on our own time, and they are rejecting it and calling us naysayers.

And I like the project management function also.  

@Michael BertschAs a general rule, we only leave a fireplace functional unless it has a sealed, externally vented, gas insert ... and, even then we may disconnect it.Check with your insurance provider and see how unhappy a functional fireplace in a rental makes them.

These softwares have a lot of functionality, but honestly there is a steep learning curve and the functionality is probably overkill for most rehabbers.FlipperForce - Web-based House Flipping Software built specifically for flipping & rehabbing houses w/ Estimating, Gantt Scheduling, Task Management & Budget ManagementGeneric Project Management SoftwaresThere are nearly an infinite amount of potential generic Project Management softwares available that provide powerful functionality for managing project schedules, tasks & documents. 

We focus on CapEX before beauty. as a realtor we understand selling or renting homes you have to make the home function, Roofing, windows, electrical and plumbing. after we address these we focused on beautify making sure the upgrades match the area and is forward thinking with color scheme, flooring, and flow.