How can I determine the value of my property when selling with mortgage arrears?

A property’s value when mortgage arrears are involved should be assessed in two separate ways: its likely market value and the net amount that could remain after the mortgage is settled. The arrears do not normally change what comparable properties are worth, but the need for a faster or more certain sale may affect the price that is realistically achievable.

Establish the type of value you need

• Market value: an informed estimate of what the property could sell for on the open market, assuming normal marketing and negotiation.
• Achievable sale price: the amount a buyer is actually likely to offer, taking account of the property’s condition, presentation, demand and the required timescale.
• Net sale proceeds: the money left after repaying the mortgage and arrears, paying conveyancing and selling costs, and settling any other secured borrowing or charges.

An online estimate can provide a broad starting point, but it may not reflect extensions, poor condition, lease restrictions, local demand or unusual property features. An estate agent’s appraisal can be useful for understanding an open-market asking price, while a surveyor’s valuation may provide a more independent assessment. A cash buyer’s offer should be considered separately: it is an offer for a particular transaction, not automatically an impartial statement of market value.

Check the property details that influence value

Before relying on any valuation, verify the information being used. Important factors include the property’s floor area, number and size of rooms, parking, garden, tenure, lease length where applicable, service charges, restrictions on use, planning permissions and the condition of the roof, structure, heating, electrics and plumbing. Unfinished work, Japanese knotweed, subsidence, tenant arrangements or title issues can affect both the price and the number of interested buyers.

Valuations are more reliable when similar properties are genuinely comparable. Adjustments may be needed for differences in location, size, condition, specification and tenure. A recently refurbished house should not be valued in the same way as a property requiring substantial work, even if both have a similar layout.

Obtain an accurate mortgage settlement figure

The mortgage balance shown on a monthly statement may not be the amount required to redeem the loan. Ask the lender or solicitor for a settlement figure calculated for the intended completion date. Check whether it includes accumulated interest, arrears administration charges, early repayment charges, legal costs or other amounts secured against the property. If there is a second charge, secured loan or charging order, that must also be identified.

Settlement figures are date-sensitive, so a calculation made several weeks earlier may no longer be accurate. Keep written confirmation of what the lender says is outstanding and ask how any further payments or charges will affect the figure.

Calculate the likely net position

A practical calculation is:

Expected sale price − mortgage settlement figure − other secured debts − selling costs = estimated net proceeds.

This calculation shows whether the proposed sale is likely to clear the secured borrowing and leave equity. If the result is positive, the remaining amount may be available to the owner after completion, subject to the final figures. If it is negative, the sale may create a shortfall. A lender may require a separate agreement about how that shortfall will be dealt with, and a sale should not proceed on the assumption that the debt disappears when the property changes hands.

Include costs that are easy to overlook, such as conveyancing, leasehold information packs, mortgage administration, repairs agreed with the buyer, storage or removal expenses and any applicable tax advice. Obtain written estimates where possible rather than relying on a rough allowance.

Consider how arrears affect the selling strategy

Where mortgage payments are overdue, the most suitable valuation may depend on the available timescale. A normal open-market sale may support a higher price but involve viewings, negotiation and a longer transaction. A sale based on speed or a property being sold in its current condition may produce a different offer because the buyer is taking on more uncertainty or work. The relevant comparison is not simply the highest headline price; it is the net amount after costs and the likelihood that the transaction can complete before the lender takes further action.

Do not undervalue the property simply because arrears exist, but do not rely on an optimistic asking price that has not been tested against current evidence. If valuations vary substantially, ask each valuer to explain the comparable evidence, assumptions and condition adjustments behind the figure.

Keep evidence for the lender and solicitor

Retain valuation reports, written appraisals, photographs, details of known defects, the mortgage settlement statement and estimates of selling costs. This evidence can help demonstrate that the proposed price is reasonable, particularly if the lender is reviewing a sale involving a possible shortfall. The conveyancer will also need accurate information about the mortgage and any other charges so that they can establish what must be paid from the completion funds.

Review the figures again immediately before committing to a sale. The final result depends on the accepted price, the lender’s up-to-date redemption figure, completion date and any costs added during the transaction. If the calculation shows little or no equity, take regulated debt or legal advice before signing an agreement, especially where repossession action or a shortfall is possible.