Short answer — typical cost range

• Small/basic "smart" greenhouse packages (sensor + basic automation, small footprint): roughly Rp 25–75 million (~US$1,500–5,000). (Agrokompleknesia.id)
• Medium commercial greenhouses with durable frame, polycarbonate cover and moderate automation: roughly Rp 250–400 million (total, not per m²). (Tekniksipil.id)
• Fully‑equipped, high‑end smart greenhouses (advanced climate control, fertigation, LED, monitoring, larger scale): from about Rp 500 million up to Rp 800 million or more. (Tekniksipil.id)

Typical per‑square‑metre guidance (useful for quick budgeting)

• Low‑cost plastic film shelters: ~Rp 50k–200k / m².
• Policarbonate + metal frame greenhouses (mid range): ~Rp 150k–500k / m².
• High‑spec controlled environment (glass or high‑grade polycarbonate + full automation): ~Rp 800k–1.5M+ / m². (Tekniksipil.id)

What drives the cost

• Structure & cover (galvanized steel/aluminium vs simple pipes; glass vs polycarbonate vs polyethylene). (Tekniksipil.id)
• Automation level (sensors, climate controller, actuators for vents, fans, evaporative cooling, shading). (Agrokompleknesia.id)
• Irrigation/fertigation and hydroponic systems. (Tekniksipil.id)
• Lighting (LED supplemental lighting increases capex and OPEX). (Tekniksipil.id)
• Site works, foundations, labour, permits, transport and installation. (Tekniksipil.id)

Operating costs and returns

• Monthly operational costs vary by size and tech (electricity for fans/LED/pumps, nutrients, labour) — small setups can be a few million IDR/month; large controlled houses can be several million to tens of millions per month. (Tekniksipil.id)
• Case studies in Indonesia show smart greenhouse tomato operations can be profitable with payback under a year for some implementations (depends on crop, scale and market). Example: a 1,600 m² K‑smart greenhouse reported positive ROI and payback in ≈7 months in a published Indonesian study. (epublikasi.pertanian.go.id)

How to get a precise quote (recommended steps)

1. Decide target crop(s) and annual production goals (this affects need for lighting, climate control, fertigation).
2. Choose cover material (cheap film vs polycarbonate vs glass) and frame (light gauge steel vs galvanised truss).
3. Specify level of automation (basic sensors + app, or full PLC control with actuators and remote monitoring).
4. Get 2–3 local vendor quotes (prices vary widely by region and included services/warranty). Vendors in Indonesia offer packaged smart greenhouse services from small starter packages to full commercial builds. (Agrokompleknesia.id)

If you want, I can:

• Estimate a budget for a specific size (e.g., 100 m², 500 m², 1,600 m²) and spec (basic/medium/high), or
• Find specific Indonesian suppliers and up‑to‑date quotes for your chosen region and crop.