Capsule House Total Cost of Ownership: 10 Years

A capsule house does not stop costing money when it is delivered. Over a ten-year operating life the purchase price is typically a minority of what the asset absorbs, and the rest is paid in small instalments that never appear in a quote: energy, cleaning, seal and coating renewal, appliance replacement, finance cost, and the occasional repair nobody budgeted for. This page sets out how to build that ten-year number for yourself. It deliberately contains no price figures, because they depend on your configuration, site and market — it provides the structure, the drivers and the questions that make your own numbers defensible. The front-end side of this topic is covered in the capsule house price guide.

The Ten-Year Model, in Five Blocks

Total cost of ownership is simply the acquisition cost plus everything the asset consumes or requires to stay earnable, less whatever it returns at the end. The five blocks below are the ones worth modelling separately, because they behave differently and are controlled by different people.

1. Acquisition — the unit as configured, freight, clearance, inland haulage and crane.
2. Site capital — foundation, services, drainage, access and any structures external to the unit.
3. Operating — energy, water, consumables, housekeeping labour, servicing and insurance.
4. Renewal — planned mid-life work: coating, seals, appliance replacement, interior refresh, glazing units.
5. End of life — disposal cost, or a residual value if the unit is relocated or resold.

Note that the first two blocks are paid once and the rest are paid forever. Buyers optimise block one because it is visible at purchase, and that is exactly why lifetime numbers surprise them later.

Which Costs Actually Move the Ten-Year Total

Across most configurations and markets, four variables dominate. They are worth more attention in specification than the tenth-of-a-percent differences in unit price that absorb most negotiation time.

Driver	How it enters the ten-year number	Specification lever that moves it
Energy	Recurs every occupied night, for ten years	Envelope U-values, glazing solar performance, external shading, correctly sized plant
Renewal cycle	Discrete spend, typically once or twice in ten years	Coating system, seal quality, hardware specification, corrosion protection for the site
Utilisation	Determines whether cost sits against revenue at all	Format choice, all-year capability, cooling performance at peak ambient
Cost of capital	Applies to the acquisition cost for the whole period	Payment structure, deposit size, whether a staged programme matches cash flow

The corollary is useful: the two specification levers with the longest reach into this model are the envelope and the coating system, both of which are decided at the order stage and both of which are cheap to specify relative to what they protect.

Building Your Own Model: The Rows to Fill

A spreadsheet with one row per line item, a unit, a quantity, a unit rate from your own market and a year, will beat any published benchmark. Below is the row structure.

Block	Row	Where the number comes from
Acquisition	Unit price as configured; options; freight; clearance and taxes; inland haulage; crane	Supplier quote, forwarder quote, broker written advice
Site capital	Survey; foundation; power and water connection; drainage; access road; external works	Local contractors with measured quantities
Operating	Energy per occupied night; water; consumables; housekeeping hours; servicing; insurance; monitoring	Load calculation, housekeeping plan, insurer quotation
Renewal	External coating; seal and gasket replacement; appliance replacement cycle; interior refresh; glazing units	Supplier maintenance manual plus local labour rates
End of life	Relocation cost, or residual value, or disposal	Secondhand market evidence, or your own redeployment plan

Get Your unit rates locally, from your own market, rather than from an online benchmark. Supplier quotes give you the acquisition block; local contractors and utilities give you the site block; your insurer and your housekeeping plan give you the operating block. Where a figure is genuinely unknown, enter your best estimate and mark it, because a flagged estimate is more useful than an omitted line.

Two further methodological points. First, express the annual costs per occupied night as well as per year — it makes the utilisation sensitivity obvious, and it is the figure operators actually use. The method for estimating the energy component is in energy cost per night. Second, do not net revenue off inside this model. Keep cost and revenue separate until the end; mixing them hides which cost lines are driving the result, and it is precisely those lines that specification can influence.

What Distinguishes This From a Maintenance Checklist

Two adjacent pages in this library are worth reading for different purposes, and neither duplicates this one.

• The seasonal maintenance checklist tells you what to inspect and when. Use it to populate the operating and renewal rows of your model; it is deliberately not a money model.
• Lifecycle, reuse and repair covers the durability and end-of-life argument. Use it for the end-of-life row and for the reuse case that underpins residual value.
• This page is the arithmetic: what those activities cost, in which year, and which specification decisions change them.

Where a unit is being financed rather than bought outright, the payment structure belongs in the model too — see financing and payment terms, which covers the stage structure and the contract clauses that govern it.

Three Sensitivity Tests Worth Running

Once the model exists, three tests tell you more than any single total.

1. Utilisation. Run the model at your realistic occupancy and at a pessimistic one. If the ten-year cost per occupied night moves sharply, your risk is demand risk, not cost risk, and that changes what you should buy.
2. Energy price. Run it at today's tariff and at a higher one. Energy is the recurring line most exposed to external change, and it is the one the envelope specification controls.
3. Renewal timing. Bring the coating and seal renewal forward by two years. If the model is sensitive to that, spend more on the coating system at the order stage — it is the least costly place to buy the difference.

The third test is the one most buyers skip and it usually produces the clearest answer, because renewal timing is the item in the model that specification genuinely controls.

Specification Lines That Lower the Ten-Year Number

1. Envelope U-values for wall, roof and floor, with layer build-ups, stated as values.
2. Glazing solar heat gain coefficient and coating specification, stated as values.
3. External shading provision on the sun-exposed elevations.
4. Coating system with the corrosivity category targeted, the standard referenced, surface preparation and dry film thickness.
5. Seal and gasket specification with a stated replacement interval in the maintenance manual.
6. Hardware and fastener material specification appropriate to the site exposure.
7. Appliance specification and expected service life, so the replacement year can be scheduled rather than discovered.
8. Spare parts shipped with the order — cheap in the container, expensive as a later consignment.
9. Maintenance manual with intervals, which is what turns guesswork into a budget row.
10. Warranty terms in writing, including who pays to ship a replacement part.

Two further items belong outside the list but inside the order. First, an operations and maintenance manual with intervals, which is what allows renewal to be scheduled rather than discovered. Second, a spare parts holding decision made at the first order: seals, gaskets, glazing units and the electrical items most likely to fail, stocked on site and replenished from the original supplier rather than sourced locally at a premium.

Each of these is a question a competent supplier answers in a day, and each one converts a future unknown into a scheduled line. Put them in your RFQ as mandatory value fields — the method is in the capsule house RFQ template. Configurations and options are on the product pages; if you are building a ten-year case, send your site, configuration and intended occupancy and we will supply the specification inputs the model needs.