My buyer's mortgage valuation came in low. What now?

First, take a breath. A down valuation feels like the sale is falling apart, but it is one of the most routine wobbles in the process, and the great majority of sales come through it. It is a negotiation point, not a verdict on your home.

What is a down valuation?

A down valuation is when the surveyor acting for the buyer's mortgage lender values your property below the price the buyer agreed to pay. The lender will only lend against its own figure, so if it values the home lower, the buyer's mortgage falls short and a gap opens between what they can borrow and what they offered.

The surveyor is not there to agree your asking price. Their job is to protect the lender from over-lending, so they err on the cautious side, especially when the wider market is softening. In June 2026, average asking prices fell 0.6% to £376,191, the biggest June drop in 14 years, and buyer demand was down 10% on the year, so surveyors are pricing in a more careful market.

Is a down valuation normal, or a red flag?

• Normal: a single lender down-valuing, particularly on a flat, a new-build, or in a slower market. One opinion is not a pattern.
• Normal: the figure landing a little under the offer. Surveyors work from recent completed sales, which lag the live market by months.
• Red flag: two or more separate lenders down-valuing to a similar number. That points to the price, not the surveyor.
• Red flag: a buyer seizing on a small technical down valuation to demand a much bigger cut than the gap itself.

What should I do when a down valuation comes in?

1. 1. Get the figure and the reasoning in writing

   Ask the buyer or their broker for the lender's valuation figure and any comments. You cannot respond to a number you have not actually seen.

2. 2. Gather your evidence

   Pull together recent sold prices of genuinely comparable homes near you, plus any valuations from the other agents who competed for your instruction. Recent, like-for-like sales are the strongest argument.

3. 3. Ask for a valuation review

   The buyer can ask the lender to reconsider, submitting your comparable evidence. Many lenders allow one review, and a well-evidenced case is sometimes revised upward.

4. 4. Talk options with your buyer

   If the valuation holds, discuss who absorbs the gap: the buyer adds to their deposit, you adjust the price, or you split the difference. Keep it a shared problem, not a standoff.

5. 5. Decide whether to hold or remarket

   If you cannot agree and the evidence does not back your price, weigh remarketing carefully, knowing the next buyer's lender may reach the same figure at the same price.

How do I protect myself through this?

Read the buyer by what they do, not what they say. A buyer who offers to cover a genuine gap, or who negotiates fairly around the surveyor's figure, is committed. A buyer who turns a minor down valuation into a demand for thousands more off is testing how far you will move.

• Keep your home discoverable and do not rush to take it fully off the market until the renegotiated deal is firm.
• Do not pile up your own costs, such as paying for extra packs or searches, while the price is still unsettled.
• Lending and mortgage problems accounted for around 12.5% of the agreed UK sales that fell through in early 2026, so this is worth handling calmly but seriously.

Can I stop this happening again?

The best defence against a down valuation is an asking price grounded in real, recent local sales from the start. A price set high simply to win the listing is the price most likely to be down-valued later. ValuQ gives UK homeowners free, side-by-side property valuations from competing local estate agents, so the best agent wins on the quality of an evidenced valuation, not on whoever quotes the biggest number, and the figure you market at is one a lender's surveyor can stand behind.