I can't help with this but I'm guessing you will need to specify your location since labor prices will be dependent on that.

$274,597.36. What do I win?

You would get your best estimate by having someone come out and look at your property and you give them the specifics of what you want. I know people who have put $50K into their back yard and some who have put $150K. It depends on too many factors for someone here to give that estimate. Now, once you get the project started and you have questions, you’ll be able to get more help here.

Only 7000 sq ft site that is already covered with a lot of non-permeable surface and you want to add more in the form of a pool and additional paving.

What will need to be done to handle rainwater run-off? Also, depending on where you are located--presumably somewhere with hot summers given the pool--you may be creating even more of an outdoor blast furnace/ heat sink by adding more hard surface.

From the other post from the OP this is to be in LA.

In LA, for a pool like the photos (around 20x10) it would be 60-70k. Add in all the concrete work and other elements you want, and 100k was a good ballpark guess.

In my area, the cost could be double the $100K or more. Hardscaping and the labor involved is the most expensive aspect of landscaping.

Thanks everyone for the comments. This project would be in LA. Based on most of the comments the price should be a range around 100k or so it seems. I was just trying to understand if this is going to cost me 50k or 500k basically. (Dont need an exact estimate)

The other issue is the yard/garden is not completely flat. It has like 10 degrees steep. Does that add a lot to the costs? Also, is there something in the city rules that may not allow me to make the garden flat in order to do the pool ? (I had heard there is some limitations on how much of soil you can dig out but I'm not sure if that is true) what else do you see blocking a project like this ?

millworkman please discount the 36 cents lol

gardengal48 (PNW Z8/9) where are you located ?

PNW = Pacific Northwest

There are so many variables involved - some of them unknown at this stage - that I doubt anyone could say with any accuracy. Somewhere north of $100K....and could be pretty far north :-) $50K would be a starting point for the pool alone. That could go a lot higher, depending on features and amenities. Then add in the cost of the paving, gazebo, fencing, firepit and planters/plantings, similar to your inspiration photos and you can easily triple that.

Actually millworkman's guestimate may not be far off!!

There are different options to deal with slope. Our yard had a bit of a slope as well, not as steep as yours. We ended up making it part of the design with two walls extending above ground and the other two level. A licensed pool company won't have a problem working with it and getting it permitted by the city. It may cost a bit more, it did not add to the cost for us.

I would guess well north of $100K. There is a pool with spa, plus shade covering. We never looked into a pool as I did not want the responsibility, but I had a friend build one a few years ago and I asked her ”is it really worth it”. However they built it and then a year ago she sold the house, lol. She has no kids, so the pool was really just for her and her husband. Overall, she had no regrets though. I think they plan to build one at their new house too. I forget the cost but I think it was between $70-$80K in a very flat backyard. It was beautiful at night when she would throw parties.

"Actually millworkman's guestimate may not be far off!!"

I play a commercial estimator (facades) in my real life...................

Easily $ 100,000 for the pool, spa and surround. More for the pergola. I have one. I find it worth it but it is expensive to construct and maintain. You will love it.

Los Angeles or Louisiana?

If Los Angeles, Millworkman is probably closest...

I would add that in an existing landscape with an existing house there will be expensive problems that you will not anticipate. In my case they had to move a gas meter and put in a larger capacity gas line. -$5,000. It required modifications to the electrical supply-panel box and lines -$5,000. A huge pecan tree had to come out and have the stump and roots removed -$5,000. The fence, which I would strongly insist upon as I am aware of drownings in my circle of life...I'm old enough to have known many people and drownings happen very fast. The fence , which is attractive, was $ 9,000 initially and then more later as I found I had to modify it for privacy when a hedge met with a disaster.

They will try to talk you into an in floor cleaning system. If you have no overhanging trees it might work fine for you. If you have trees and wind-I am in Oklahoma-there will be regular weather and seasonal events which will fill it with so much leaf litter, blossoms and racemes of oak pollen that the little jets are defeated. In that case save your money and either vacuum it yourself or get the crawler.