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// WORKED EXAMPLETHE ARITHMETIC A DECISION RESTS ON

Partial Release of Security: a Worked Example

Sell the best unit, and the rest must still carry the loan.

BY MICHAEL SHANG · SIXTEEN YEARS IN COMMERCIAL BANKING · UPDATED

// THE SHORT ANSWER

A partial release is the bank agreeing to give up its hold on one asset, usually so the owner can sell it, without the loan being repaid in full. The bank prices that consent in sale proceeds: it asks for enough of the money that the assets it keeps still pass the value and income tests it lent on, and sometimes for all of it. The figure depends less on the asset being sold than on what stays behind, which is why selling the strongest property in a portfolio can cost the owner more of the proceeds than selling the weakest.

BASIS  Practitioner judgment from sixteen years in commercial banking, set out in How Bankers Think (Highbank Press, 2026). Every borrower on this site is a composite constructed for teaching, not a client. The market is mid-market commercial lending as practised in New Zealand and Australia; where a convention differs elsewhere, the page says so.

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// 01 — WHY A RELEASE IS A CREDIT DECISION

When a bank takes mortgages over several properties, or a mortgage and a general security agreement, the documents are usually written so that every asset secures the whole debt. Nothing in that structure assigns part of the loan to part of the security. A borrower who sells one asset is therefore asking the bank to give up some of its protection while the debt stays where it is, and the security documents generally give the borrower no right to that. The facility agreement may: some portfolio and development facilities set out in advance the terms on which an asset will be released.

Where no such terms exist, the bank treats the request as it would a new application. It asks two questions. Will the security left behind still cover the debt by enough? And will the income left behind still pay the interest? The sale proceeds are how both questions get answered, because the part that reduces the debt is the part that keeps the ratios where the bank needs them.

// 02 — HOW THE RELEASE AMOUNT IS WORKED OUT

Banks reach the figure in a few common ways. Some ask for all the net proceeds. Others ask for whatever repayment brings the remaining loan back within the facility's tests, and some facilities fix the figure in advance as a percentage of the value or loan amount allocated to each asset. Where more than one method applies, the agreement often takes the higher. The test-based method runs like this:

Remaining value = total security value − value of the asset sold
Debt supported on value = remaining value × LVR limit
Debt supported on income = remaining income ÷ cover required ÷ interest rate
Repayment required = current debt − the lower of the two supported debts

If the repayment required is more than the net proceeds, the sale cannot go ahead on those terms without other money or other security. If it is less, the bank may still ask for more, for instance to bring the loan back to where it was at the start, or to reduce exposure to a borrower it is less comfortable with than when it lent.

// 03 — THE EXAMPLE

A company that owns four industrial units, constructed for this page like every figure in it, has an interest-only loan of US$6.0m at 6.5% secured over all four. Its covenants require loan-to-value of no more than 65% and interest cover of at least 1.50 times. Both levels are the example's, not market norms. Unit A is worth US$3.0m and is let to a strong tenant at a net rent of US$0.24m a year; units B, C and D are worth US$7.0m together and earn US$0.405m net, because C is half empty. The company wants to sell A, which would bring in US$2.9m net of costs. Figures in US$m:

Before the sale: 6.0 ÷ 10.0 = 60.0% LVR 0.645 ÷ 0.390 = 1.65× cover
Sell A, repay nil: 6.0 ÷ 7.0 = 85.7% LVR 0.405 ÷ 0.390 = 1.04× cover
Debt the rest supports on value: 7.0 × 65% = 4.55
Debt the rest supports on income: 0.405 ÷ 1.50 ÷ 6.5% = 4.15
Repayment required: 6.0 − 4.15 = 1.85
After repaying 1.85: 4.15 ÷ 7.0 = 59.3% LVR 0.405 ÷ 0.270 = 1.50× cover

The value test alone would have let the company keep US$1.45m of its US$2.9m. The income test asks for US$1.85m, because unit A carries 30% of the portfolio's value but 37% of its rent. The owner keeps US$1.05m.

Now suppose it sells unit C instead, valued at US$2.0m, for US$1.9m net. The remaining value is US$8.0m and the remaining rent US$0.565m. On value the rest supports US$5.2m (8.0 × 65%); on income, US$5.79m (0.565 ÷ 1.50 ÷ 6.5%). The value test now binds and the repayment is US$0.8m, leaving the owner US$1.1m from a smaller sale. Selling the weak unit releases cash to the owner; selling the strong one mostly releases it to the bank.

// 04 — WHAT A LENDER READS BESIDE IT

A release request often arrives with a clause already in play. Many facility agreements require disposal proceeds to be applied in mandatory prepayment, so the bank's ask may be set by the agreement before it is set by the arithmetic. A release is also different from a substitution, where the borrower offers a new asset in place of the one sold; the bank then values the replacement and checks its title and income before it lets the old one go.

In a development loan the calculation is done before the first sale, so the developer can settle each unit without a fresh request. Portfolio facilities sometimes copy the idea, allocating a share of the loan to each property and fixing in advance what must be repaid when one is sold. Where that has been agreed, the negotiation happened at signing; where it has not, it happens now, with the bank holding the stronger hand.

DEFINED IN ONE PARAGRAPH → · THE ALL-MONIES CLAUSE → · RELEASE PRICE →

// 05 — WHERE IT DECIDES A FILE

The credit officer's paper on a release reads like a small application: current valuations of what remains, the income it produces, the borrower's use of any proceeds it keeps, and whether the business still services its debt once the sold asset's earnings have gone. A buyer's deposit and a settlement date add pressure, which is why a borrower that asks before signing the sale contract usually gets a better hearing than one that asks a week before settlement.

The documents follow the decision. Over land, the bank signs a partial discharge: in New Zealand a partial discharge of mortgage lodged through Landonline, in Australia a discharge of part lodged with the state or territory titles office, and in England and Wales form DS3, the form the land registration rules prescribe for releasing part of a registered title from a charge, or its electronic equivalent. For a UK company, the company or the bank may also file form MR05 so that the Companies House register shows the property released. Over personal property in New Zealand and Australia, the bank releases the asset to the buyer and, where its registration describes that asset specifically, such as a serial-numbered vehicle, amends the PPSR registration. At settlement the bank's figure arrives as a payout figure for the part being released, and settlement proceeds against it.

LVR, SECURITY AND COLLATERAL → · WHAT YOUR BANK HOLDS AS SECURITY →

// SOURCES

The documents the statements on this page rest on. Each was opened and checked when cited.

  1. The Land Registration Rules 2003 (SI 2003/1417), rule 114 — England and Wales — Prescribes Form DS1 for a discharge of a registered charge and Form DS3 for a release of part of a registered title from a registered charge, subject to the electronic discharge alternatives in rule 115 — section 05.
  2. Land Information New Zealand, Prepare a partial discharge/withdrawal in Complex mode (Landonline guidance) — Sets out how a partial discharge of a mortgage over part of the land is prepared and lodged in Landonline — section 05.
  3. Companies House, How to complete form MR05 — checklist — MR05 is a statement, which the company or the chargee may deliver, that part or all of the charged property has been released; the charge stays on the register as outstanding — section 05.

// QUESTIONS PEOPLE ASK

Can I sell one property if the bank has a mortgage over several?
Yes, with the bank's agreement. It will usually release the property being sold if the ones you keep still support the loan, in return for part or all of the sale proceeds. Ask before you sign the sale contract, give the bank the price and settlement date, and expect it to want current valuations of the properties you keep and evidence of the income they earn.
How much of the sale proceeds will the bank take?
It depends on what is left. A bank commonly asks for enough to bring the remaining loan back within its loan-to-value and income cover tests, and some ask for all the net proceeds. If the facility agreement sets a release amount for each property, that figure applies. Selling a property that earns a large share of the rent can cost more of the proceeds than its value alone suggests.
What is a partial discharge of mortgage?
It is the registered document that removes a mortgage from part of the land it covers, or from one of several titles, while leaving it in place over the rest. The lender signs it, usually at settlement of the sale, and it is lodged with the land registry in the same way as a full discharge. The debt is not reduced by the document itself; only the repayment agreed with the bank does that.
Can the bank refuse a partial release?
Usually it can, unless the facility agreement gives the borrower a right to a release on stated terms. Security documents are written so that each asset secures the whole debt, and the bank is not generally obliged to give any of it up before the debt is repaid. In practice a bank asked for a release that leaves its position sound will agree, and the discussion is about the repayment and the conditions.

THE IN-TRAY · ONE MINUTE

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THE NUMBER · THE LOAN · PROTECTION

A company fails. One lender is secured over the plant; the other is unsecured. The receiver's realisations, after costs, are below. There are no preferential claims.

Secured lender owed
US$10m
Unsecured lender owed
US$5m
Realised from the plant
US$9m
Realised from everything else
US$2m

What does the unsecured lender recover?

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7 MORE ON THE LOAN · PROTECTION →WHERE DO YOU READ FROM? THE PLACEMENT →