Residential in Bulk or Unit by Unit
A residential building bought whole and the same building bought one apartment at a time are not two versions of a single transaction. They are two different assets, financed by different institutions on different terms, secured in different ways and repaid through different exits. The choice between them is made before any financing is arranged, not afterwards, because the financing follows the choice and cannot easily be reversed once it is signed.
The question belongs to investors, family offices, developers and companies acquiring residential property as an investment. A household financing the home it will live in sits in another market under another regime and is not the subject here. For the professional buyer, block or units is the structural decision that determines everything downstream: which lenders will read the file at all, what security they take, how long the money runs, and what event has to occur for it to be repaid.
One building, two assets
To a lender, a residential block is a single asset with a single income line. One registry entry, one borrower, one mortgage, one valuation, one rent roll. The building is underwritten much as a small operating business would be, because that is what a let block is: an operation that collects rent, pays costs, suffers vacancy and turnover, and produces a net figure from which debt is serviced. The credit question is whether that net figure is durable.
Bought unit by unit, the same walls become a series of separate assets. Each apartment has its own registry entry, its own valuation, its own occupant or buyer, and potentially its own loan, deed and registration cost. The lender is no longer looking at one income line but at a collection of small exposures, and the risk it worries about shifts from the durability of the rent to the pace and price at which individual units can be let or sold.
Whether the second version is even legally possible is the first thing to establish, and it is regularly assumed rather than checked. Selling apartments separately requires the building to have been divided into individually registrable units, through a deed of horizontal division in Spain or a deed of division into apartment rights in the Netherlands, registered, with the community and its rules constituted, and in some cases a municipal authorisation behind it. Until that exists, the building is one thing in law regardless of what the business plan says.
The failure this produces is common enough to be predictable. A buyer prices the block against the sum of what the apartments would fetch individually, while the division has not been obtained, costed, or tested against the physical reality of the building. Units without independent access, separate meters or the certificates required for individual occupation cannot be sold as units whatever the deed says. The discipline is to treat the division, where it does not already exist, as a project with a timetable, a cost and a genuine possibility of refusal, and to finance the purchase on the basis that it might not arrive on schedule.
What a lender reads in a block
The block file is a rent file. Lenders examine the rent roll and then test it: leases and their remaining terms, the arrears history rather than the arrears position on one convenient date, vacancy over time, tenant turnover and what each turnover costs in works and lost months, and who manages the building day to day. A rent roll that reconciles to bank receipts is evidence. A rent roll presented as a schedule with no receipts behind it is an assertion, and experienced lenders treat it as one.
Valuation is where the two strategies first collide on paper. A block is valued as a block, on its income and on what an investor would pay for the whole of it, and that figure sits below the sum of the individual apartments sold one at a time. The difference is not a mistake in the valuation. It is the market pricing the time, cost, execution risk and carry involved in converting one asset into many. Lenders advance against the block figure, and a borrower who has underwritten his equity against the retail figure discovers the gap at exactly the wrong moment.
Leverage on a let residential block runs up to 70 per cent depending on the transaction, and what moves a file within that range is mostly the quality of the income rather than the quality of the building. Tenancy regimes matter more than most buyers expect. Tenancies that survive a sale, run for long or indefinite periods, or sit materially below market rent restrain both the income and the exit, and a lender reads them as a constraint on value rather than as a detail of occupancy. Concentration matters too, since one building in one street is a single point of failure.
The preparation follows from that list. The file should carry the leases, the reconciled rent roll, the arrears and vacancy history over several years, the community accounts and the charges attaching to each unit, the outstanding capital expenditure with a plan and a budget behind it, and a clear statement of the tenancy regime unit by unit. Presenting a block on aggregate retail values with a thin income record is the fastest way to a decline, and it is a decline about the file rather than about the asset.
What changes when the units are financed one by one
Financing apartments individually is not the same work repeated. Each unit carries its own valuation, its own deed, its own registration and its own fixed costs, and the total of those small costs against small tickets is a real drag on the return. Time multiplies in the same way. Ten separate approvals, ten valuations and ten completions consume a calendar that a single block financing would not, and the calendar is usually the constraint that matters when a portfolio is being assembled.
Then there is the limit few buyers anticipate. A lender that finances one apartment happily may decline the eighth in the same building, because internal exposure limits apply per borrower, per building and per postcode, and those limits exist precisely to prevent the concentration the buyer is deliberately creating. Institutional and cross-border lenders also work above a minimum transaction size that a single apartment rarely reaches, which is why unit-by-unit acquisition tends to drift towards local lending, in local language, on local terms, with all the friction that implies for a foreign owner.
The workable structure is usually a single facility secured over several units with a partial release mechanism built into it. Units are then sold or refinanced individually and released from the security against a defined release price. The mechanism matters in its detail: the release price per unit is set above that unit’s proportionate share of the debt, so that the loan amortises faster than the collateral disappears and the lender’s position improves rather than deteriorates as the best units leave the pool.
What goes wrong is the absence of that mechanism. A buyer acquires a block intending to break it up, signs a facility written for a hold, and then discovers that every individual sale requires a consent that has to be negotiated one apartment at a time with a lender who has no obligation to give it and every incentive to charge for it. The release schedule, its prices and its ordering are negotiated at the outset, when the borrower still has alternatives, or they are not really negotiated at all.
Two exits, and the gap between them
There are only two ways out, and they behave differently. The first is to hold and let, stabilise the income, and refinance the block as a standing investment. The second is to break the building up and sell apartment by apartment, capturing the difference between what a block costs and what individual homes fetch. That difference is the entire business case for the break-up strategy, and it is also the reason the block was available at the price it was.
Capturing it costs more than most plans admit. Division and registration, refurbishment to a standard a retail buyer will accept, individual certificates and meters, marketing over a period rather than a moment, selling costs on every unit, and the debt service running across the whole sales programme. The sale rate is the variable on which the entire plan depends, and it is the variable the owner controls least. A break-up that only works at an optimistic pace is not a strategy with a margin, it is a bet with a maturity date attached.
Occupancy sets the sequence. Units held under tenancies that survive a transfer cannot be delivered to a retail buyer until those tenancies end, which means the order and the timing of the break-up are dictated by lease expiries rather than by the business plan. Lenders model this, and the question they ask is the one the buyer should have answered first: how many units can realistically be brought to vacant possession, by when, and what is the plan for the ones that cannot.
A lender financing a break-up therefore writes a different instrument. The term is matched to the sales programme rather than to a standard investment horizon, release prices and their ordering are fixed, surplus proceeds are swept against the debt, and the facility usually carries a fallback to the rental case if sales run slow. That fallback is the part worth insisting on. A break-up facility with no rental fallback is a structure with exactly one acceptable outcome, and a residential sales market that pauses for a year is not an exotic scenario.
Choosing before the money is arranged
The decision has to precede the financing because the financing encodes it. A facility written for a hold does not become a break-up facility through the borrower’s intention, and a short break-up facility is a poor way to own a stabilised rental asset. Restructuring mid-term is possible, but it is negotiated from the weaker side of the table, usually at a moment when the plan is already under pressure and the lender knows it.
The honest way to choose is to run both strategies against the same unforgiving scenarios. Slow sales, tenancies that run longer than expected, a division that takes a further year, refurbishment costs above budget, and debt service across all of it. A block held and let produces a modest, durable outcome that survives a bad year. A break-up produces a better outcome if the pace holds and a difficult one if it does not. Comparing them on their good cases tells the buyer nothing at all.
Frequently the answer is neither in its pure form. The vacant units are refurbished and sold, the occupied ones are held and let until their tenancies run out, and the building converts gradually rather than at once. That mixed approach is perfectly financeable, but only under a structure designed for it from the beginning, with release mechanics for the units that leave and rental underwriting for the ones that stay. Retrofitting that flexibility later is expensive when it is possible and impossible when it is not.
None of this is a judgment about which strategy is better. Blocks and break-ups both work, and the same building can be a good investment either way. What does not work is choosing the asset first and the strategy afterwards, because the lender is not really financing the property. It is financing a plan for the property, and the plan has to exist, with its timetable, its costs and its fallback, before anyone can be asked to fund it.
Montclare does not act as a lender. It structures transactions, prepares the file and coordinates financing with authorised institutions.