How much does a commercial greenhouse cost? What actually drives the price

There is no list price. As SeedMatch Group's internal planning estimates for hardware and erection on a prepared site — not quotes or sourced market prices — a single-span polytunnel runs about USD 25–50 per m², a multi-span polyhouse USD 50–120, Venlo glass USD 150–350 and a semi-closed high-tech house USD 300–600 per m². Land, permits, site works, foundations, utilities, taxes, packhouse and financing are extra, and a real price exists only when a supplier quotes against one written specification for your site.

Because the same area can be a passively ventilated film house or a heated, cooled, computer-controlled glasshouse, built to very different wind and snow loads. Fixed costs such as design, shipping, mobilisation and commissioning are also spread over the area, so small sites cost more per unit. Use the indicative ranges for a first budget, then list the drivers below and ask suppliers to quote them.

The structure and the loads it is designed for, the covering material, and the climate-control level. FAO describes two production models: active climate control, with high yields, regular production and high costs, and passive climate control, with limited, irregular production and low costs. Energy, water treatment, site works and the scope boundary then decide the rest.

Climate decides which equipment is needed. FAO gives thermal limits for Mediterranean protected cultivation without active climate control of 12–22 °C in coastal areas and 12–17 °C inland; outside these, heating, mechanical ventilation and cooling are required. Wind and snow loads, which EN 13031-1 requires the structure and its foundations to resist, also set the steel and foundation design.

Yes. Energy, water, labour, crop inputs, maintenance, packaging, depreciation and financing all follow the build. Energy can be a large share: a Wageningen University & Research study notes that energy costs make up about 15–30% of a greenhouse's total annual costs in the Netherlands, where most houses are heated. Use your own tariffs and climate; that Dutch figure is context, not a forecast for your site.

Write one specification covering crop, area, structure type, design loads, climate scope, water and energy, site works and the supply boundary. Request proposals against it, normalise them line by line, then add land, permits, utility connections, owner costs, financing and working capital that sit outside supplier scope. The calculators on this site are planning tools; their outputs are estimates, not prices.

Usually not. Land, permits, site preparation, foundations, utility connections, taxes, packhouse, financing and working capital are often outside a supplier's boundary. Record each supplier's exact boundary to avoid omissions or counting a cost twice.

A turnkey scope normally covers design and engineering, structure and foundations, covering, ventilation and screens, climate control, irrigation and fertigation, electrical works, installation and commissioning, often with operator training. Land, permits, packhouse and working capital are usually outside it. Confirm the exact boundary in each quote.

A complete quote states: structure and foundations, glazing or film, ventilation and screens, heating and cooling, irrigation and fertigation, electrical distribution and controls, internal transport, erection and supervision, commissioning with FAT/SAT, spare parts, training and the design wind and snow loads. Anything absent from that list is a cost that will appear later — check it line by line before comparing two totals.

Almost always scope, not unit price. Check whether the quote includes foundations and civils, the climate computer and sensors, screens, the fertigation skid, internal transport, electrical distribution, commissioning and FAT/SAT, spare parts and training — and which wind and snow loads and covering were designed for. Normalise every quote against one written specification before comparing totals.

Hot, dry sites usually favour tall multi-span or high-tech structures with high roof ventilation, insect screens, shade or diffuse covering, and pad-and-fan or fogging cooling. In very hot or humid markets, semi-closed designs with active cooling are used for premium crops. Water quality and grid capacity often decide which option is feasible.

It depends on crop, climate, cooling method and whether drainage is recirculated. Demand peaks in the hottest weeks, so size the source, storage and treatment for the peak day. Share your water source, volume and a recent water analysis so suppliers can size the system; no single figure applies to every project.

Send every supplier the same specification, then compare like-for-like scope: structure and load class, covering, climate and automation scope, irrigation, installation, commissioning, warranty, delivery time and payment terms. Differences in price usually come from differences in scope. SeedMatch structures the RFQ and reviews responses neutrally.

Site and area, crop and target market, preferred structure, climate data, water source and analysis, grid capacity, growing system, automation scope, scope boundary (supply, install or turnkey), timeline and budget band. The checklist on this page lists each item.

A turnkey contract places more interface and programme responsibility with one contracted party, while multi-package procurement leaves more coordination with the buyer. Neither route is automatically cheaper. Compare both against the same written specification, responsibility matrix, commissioning tests and scope boundary.

Possible routes include equipment finance or leasing, project or agricultural credit and working-capital facilities. Availability, pricing and approval depend on the buyer, jurisdiction, security package and provider. SeedMatchGroup is not a lender, and financing is never guaranteed.

Once you have specified structure, area, crop and climate target, open a vendor-neutral RFQ for manual review and private outreach to relevant qualified manufacturers, integrators and EPCs. Any compliant responses can then be normalised against the same written scope before a budget is committed. SeedMatchGroup reviews qualified commercial project briefs from USD 250,000.

There is no single average. First commercial units and trials are often well under a hectare, established regional growers commonly run a few hectares, and export and retail-programme projects can be much larger. Unit cost per m² usually falls as area rises because fixed design, mobilisation and commissioning costs are spread over more area.