Terrace Garden

Every terrace begins with a conversation with the building — its structure, its waterproofing, its drainage. We coordinate with your engineers so the garden's weight, saturated, is always within safe limits.

On that base we build a lightweight, free-draining soil profile and a planting scheme chosen for exposure: plants that shrug off wind, glare and the reflected heat of a rooftop. Irrigation is designed in, not added on.

Finally we resolve the terrace as a usable space — the paths, edges, seating thresholds and lighting that make it somewhere people actually go, morning and evening.

Almost every failed rooftop garden fails for one of four reasons, and all four are settled before a single plant arrives.

The slab. Your structural engineer will give you a permissible imposed load in kilograms per square metre. The number that matters is not the weight of dry soil but the weight of the profile fully saturated, after monsoon rain, with the planting mature. A deep intensive profile can run into several hundred kilograms per square metre once wet. A shallow extensive one is a fraction of that. The depth you can afford decides what you can plant — not the other way round.

The waterproofing. A terrace garden sits on top of a roof whose only job is to stay watertight. We work over a root-resistant membrane with a protection layer above it, because roots will find any weakness given five years to look. Where an existing terrace is being converted, the membrane is tested and flooded before anything is laid on it. Discovering a leak under 300mm of wet media is an expensive way to learn.

The drainage. Water has to leave. A drainage layer, a filter fabric to stop media washing into it, and outlets that stay accessible after the garden is planted. Blocked outlets are the most common maintenance failure on Indian rooftops, and they are entirely preventable at the design stage.

The exposure. A roof in Rajasthan is a harsher place than the ground ten metres below it — more wind, more glare, reflected heat off paving and parapet, and a soil profile that dries far faster than open ground. Planting chosen for a garden bed will not survive it.

The working palette for a terrace garden in this climate is narrower than most planting lists suggest, and it is chosen for one quality above all: tolerance of heat, wind and a drying root zone.

Structure and height. Plumeria, Bismarckia and dwarf date palms where the load allows, Ficus in containers, and Nerium as a wind screen. These hold the composition when everything else is cut back.

Flower through the hot months. Bougainvillea, which asks for heat and neglect and gives colour for it. Tecoma, Lantana, Vinca, Portulaca and Adenium. Mogra and Murraya for scent near seating, where an evening breeze carries it.

Succulent and architectural. Aloe, Agave, Sansevieria and Euphorbia milii for the exposed edges, where the profile is shallowest and the wind is worst.

Useful. Curry leaf, lemon in a container and hardy herbs, which on a hotel terrace make the garden part of the kitchen rather than only part of the view.

Species are grouped by water demand — hydrozoning — so the thirsty planting near seating and the drought-tolerant edge planting are never on the same irrigation schedule. It is the single decision that does most to keep a rooftop alive through May and June.

We do not publish a rate per square foot, because the figure would be meaningless without knowing the roof. What we can be clear about is what moves the number.

Profile depth is the largest single driver. Lawn and shrubs need depth; depth is weight; weight can mean structural strengthening. A terrace designed around containers and raised beds on a lighter profile costs a fraction of one built as a continuous deep garden.

The condition of the existing waterproofing is the largest unknown. A sound, recently laid membrane can often be built over. A roof that has been patched for years needs stripping and relaying first, and that work is properly part of the building, not the garden.

Access matters more than people expect. Every kilogram of media, every tree and every paving slab has to reach the roof. A service lift changes the arithmetic; a staircase and a working hotel change it again.

Then irrigation, lighting, paving and the planting itself — the visible part, and rarely the expensive part.

We survey first and quote against a drawing. Nothing is priced before we have seen the roof and read the structural drawings.

A small terrace is not a large one scaled down. With limited floor area the constraint moves from load to circulation: how much of the terrace can be planted before it stops being a place you can walk, sit and serve from.

What works is planting at the edges and in the corners, raised to different heights so the green reads as volume rather than a fringe; climbers taken vertically on a screen or pergola, which buys canopy without taking floor; and one specimen given enough room to be the reason you go up there. Restraint reads as design. A small terrace planted evenly all round reads as a nursery.

On a small roof terrace garden in a Udaipur home this is usually the brief — a terrace that has to be a garden in the evening and a usable floor the rest of the time.