Valuing a grain silo or cereal storage facility in Morocco: DRC and the collection basin

A silo is not a shed. Its value sits in the engineering and in the catchment for grain, not in the covered square metres.

1. An asset without a market: why DRC leads

A silo rarely changes hands, and when it does, it is unlike any other: capacity, type of cells — vertical concrete, steel, flat stores — condition of the handling chain, siting. For want of usable comparables, the reference method is depreciated replacement cost (DRC), which the Red Book frames under VPGA 5 for specialist assets:

• Replacement cost new — not rebuilding a period installation identically, but costing a modern equivalent unit delivering the same service: capacity, intake rate, conservation.
• Depreciation — physical (wear on cells, handling and ancillary buildings), functional (outdated intake rates, cells ill-suited to today's lorries, no drying capability), and economic (local overcapacity, shifts in collection flows).
• Land value — added for its current use, with a highest and best use test: on the urban fringe the land may be worth more for another use than the silo it carries.

Where the unit invoices storage services to third parties, an income approach comes in to cross-check the DRC — never to replace it blindly. The kinship with the other specialist industrial assets we handle is direct, and the underlying mechanics are set out in our guide to the DRC and DCF methodology for industrial assets.

2. Location: the grain basin governs

For a silo, location is not judged in price per square metre but in grain logistics:

• Position within the collection basin — a silo is worth the grain that can converge on it at harvest: proximity to the growing areas of the Gharb, the Chaouia, the Saiss, the Doukkala or the Haouz, the agricultural density of the collection radius, and competition from neighbouring units.
• Road access — at the peak of harvest the unit receives queues of lorries and farm trailers: heavy goods access, a waiting area, internal circulation and intake rate (pit, weighbridge) make the operational difference.
• Proximity to outlets — flour mills, animal feed manufacturers and, for imported cereals, the ports. A port silo, or one close to a port, works on import flows; an inland silo works on local collection. Two different economic logics.
• Structural seasonality — collection is concentrated into a few weeks while conservation runs across the year: the plant must be sized for the peak, which weighs on its apparent profitability.

3. The engineering: cells, handling, conservation

Inspecting a silo is as much an engineering visit as a property one. The components to inventory and assess:

• Storage capacity — vertical concrete or steel cells, flat stores: total capacity, compartmentalisation (indispensable for separating species and grades), condition of walls and floors.
• The handling chain — intake pit, elevators, conveyors, reclaim and despatch equipment: the intake and loading rate is the central functional indicator.
• Conservation — cell ventilation, temperature monitoring, cleaning, drying where fitted: this is what allows long storage without loss of quality, and therefore what delivers the service the sector pays for.
• Safety — storing grain carries a risk of dust explosion and requires specific provisions (dust extraction, prevention of hot spots, explosive-atmosphere procedures); their condition and compliance weigh directly on the depreciation.
• Ancillaries — scales and weighbridge, intake analysis laboratory, offices, caretaker accommodation, fencing.

4. The tool and the trade: two perimeters to separate

As with any operating asset, the valuer must separate what belongs to the tool from what belongs to the trade:

• The property and technical tool — land, cells, handling, ancillaries: this is what is valued on DRC.
• The collection and storage business — licences and authorisations to operate within the cereals sector, contracts with storage bodies, cooperatives and mills, the customer base of delivering farmers: a going-concern logic, whose value follows the profitability and the renewability of the contracts.
• The stock — the grain held in the cells obviously never enters the property value: it belongs to its depositors or to the operator, and is dealt with separately.

A sale may bear on the tool alone (an operator taking the site over for its own collection), on the tool and the trade together, or on premises let to an operator: the perimeter must be settled before any figure is put on it, and the report must state explicitly what it includes.

5. Typical instructions

• Sale or acquisition — between operators in the sector, or the takeover of a site by a cooperative or a merchant.
• Funding — security taken over an asset that a funding party cannot appraise on its own: a documented DRC is the basis of the file.
• Accounts and restructuring — carrying value, contribution to a company, reorganisation of an agri-industrial group.
• Insurance — the reconstruction cost of a silo has nothing to do with its market value; our guide to reinstatement cost assessment sets out that logic.
• Redevelopment — an urban silo overtaken by the city: the highest and best use test may tip value towards the land.

6. The inputs to the instruction

• Legal — land title, operating authorisations, sector licences, environmental and safety compliance.
• Technical — drawings, capacity by cell, year of construction and of modernisation, condition of handling and ventilation, maintenance history.
• Operations — tonnages collected and stored over several campaigns, service contracts, tariffs applied, detailed costs — data supplied by the client and cross-checked on inspection.
• Market — competing units in the basin, local storage capacity, the dynamics of regional collection.

7. Common traps

• Valuing at the price of ordinary industrial land — a silo is not a shed: its value lies in the engineering and the collection position, not in the covered square metres.
• Costing a faithful reconstruction — the DRC refers to a modern equivalent unit, not to rebuilding a period installation.
• Understating functional obsolescence — outdated intake rates, unsuitable cells, no drying: these are deductions to be priced, not mentioned in passing.
• Confusing tool, trade and stock — three perimeters, three logics, three values.
• Ignoring highest and best use — in a peri-urban location the alternative land value may dominate; failing to test it risks being wrong by an order of magnitude. The reading grid is set out in our guide to land valuation, zoning and buildable potential.

8. What the report is for

Sale, funding, accounts, insurance, a redevelopment decision: the report establishes a documented value with its scenarios set out. It rests on named assumptions, cited sources and a stated methodology, which makes it contestable point by point rather than defensible in a block. This is a private valuation — it informs a decision and an arm's-length negotiation. Our reports are prepared by RICS-certified experts and comply with Red Book standards, VPGA 5 for specialist assets.

A silo is a highly specialised instruction, quoted case by case according to the size of the unit, the perimeter (tool alone, or tool and trade) and the documentation available. For reference, our valuations start at 3,500 MAD excl. tax for standard assets, with a firm quote within 24 hours and delivery in 5 to 8 days, 48-72 hours on the express service. ReaConsult has been operating since 2019, with more than 5,000 valuations completed, offices in 6 cities and a rating of 4.9/5 across 47 reviews.

Note:this article sets out a valuation methodology compliant with RICS standards (Red Book, VPGA 5 depreciated replacement cost for specialist assets). Operating authorisations, sector licences, environmental compliance and the safety provisions applicable to grain storage are governed by the regulations in force — confirm your own position with the competent authorities and your advisers. A private valuation informs a decision and an arm's-length negotiation. To instruct us, see our contact page or the property blog.