This is a great space to work with. Since you have a good length, you can break the terrace into rooms.. with yew to divide the areas, or tall plants with shallow roots. Grow grass in curves and a pathway to lead visitors through the various rooms. Couple of ideas for garden 'rooms': Bamboo with golden stem or black stem as background, with charpai and 'moda' seating with cushions. A light under the foot of the bamboo, looking up will be alluring. Put up a trellis with fragrant climbers like jasmine and seating underneath on a part of the terrace which gets shade in the evening so you and your friends and family can relax. A dry garden with hardy plants like tall grass and Palm tree, pebbles on the ground to create the look. Plant a small flowering tree in one 'room' Add evocative lighting to create the mood in the evenings. As you can see there are many possibilities. Please ensure the ground is well protected from water seepage etc before you start planting. Also ensure the height of the periphery wall is taller for it to be safe for children and adults. Bear in mind the size of the plant, roots, sun and water needs before you choose your plants. Enjoy the creation..!

Hello Sachin, Depending on your area, where you live, look out for plants and herbs that best suits your requirement, you can also grow vegetables that take up less space. As for bamboo fencing, it will look good, if the proper workmanship is there. Alternative for it can be done as you can have M.S. fence and over it, creepers can be planted, or a vertical garden would also be good. Hope that was helpful -Thanks, -Lines and Profile

Your idea of breaking the wall directly to terrace is the first step. The opening need a wpc french window type opening with sliding or swing gate.

Harsha, You may want to go for proper terrace gardening and barbeque setup . Nice colour on the exterior !