Городской оазис 1921 г. Рядный дом с развлекательным внутренним пространством / дверным пространством / каретным двором

We have almost completed the renovation of our beautiful 1921 brownstone. We now need the experts to design us an amazing side and backyard. This project is to take the connected lot to our brownstone (our side/backyard) and transform it into a modern green space and Urban Oasis. We bought this property so we could have the best of both worlds city living and a zen green space to enjoy some nature. This design should include everything from backyard greenery, a deck solution a possible (optional) water feature and garden. We want to create a living fence line in front of our actual fences and walls out of living bamboo to obstruct the view to the neighbors. There is a carriage house to the back of the lot that is finished, it is approximately 700 sq feet and is the width of the back lot. A rendering could include opening that into a shared space which is now planned as an office. I like modern clean lines and my significant other does too but she loves to garden and loves beautiful flowing flowers and an area where she can plant and grow herbs.

Budget: Between $20K and $35K USD including water feature, without one, < $15-25K.
Backyard requires demolition and to have cement foundation torn up and removed.
Carriage house has hard wood floors and is finished, I don't have a picture but have plenty of pictures of the back yard.

Perhaps open the carriage house up and incorporate it into the exterior space such as take the wall down entirely and create a half indoor half our door entire entertainment space.

While I would like something modern, my significant other loves to garden and would love a whimsical garden area or beautiful flowing flowers over a pergola. Think Pergola, maple tree hanging lights, long plank table over wroguht iron. These are just influences, we want unique creative ideas. Good luck satisfying both of those themes :)

https://www.pinterest.com/elroacho3/backyard/
https://www.pinterest.com/joybell112/backyard/