Why Estate Agents Give Different Valuations (and Who to Believe)

You invite three estate agents round, and they give you three completely different numbers. One says £320,000, one says £345,000, and one says £360,000. It's tempting to assume the highest must be right. After all, it's your home. But the gap between those figures usually tells you more about the agents than it does about your property.

Why do estate agents give different valuations in the first place?

Estate agents give different valuations because property pricing is not an exact science. It blends hard data on comparable sales with professional judgement, and different agents weight those ingredients differently. Add in varying levels of local expertise and the occasional incentive to win your instruction at any cost, and a £30,000–£50,000 gap between valuations is entirely normal.

Unlike a surveyor's formal mortgage valuation, a free estate agent valuation (sometimes called a market appraisal) carries no regulated liability. The agent is giving you their best estimate, but they are also pitching for your business.

The main reasons valuations diverge

1. They're using different comparable sales

Valuation evidence comes from properties that have actually sold, not ones currently listed. Agents pull this from HM Land Registry records, Rightmove's sold prices section, or their own transaction history. The problem is that comparable sales require judgement: which properties are genuinely similar in size, condition, and location? Two agents looking at the same street can reasonably disagree.

If an agent is relying on asking prices rather than completed sale prices, their figure will almost always be inflated. Always ask: "What sold properties are you basing this on?"

2. Their local knowledge varies enormously

An agent who has sold twelve homes on your road in the last three years will read the micro-market very differently from a branch that covers the whole town from a single office. They'll know which end of the street commands a premium, how much buyers pay over guide in a bidding situation, and how long realistically priced homes are sitting before going under offer.

This is one area where a personal estate agent (someone who works a defined patch and handles a smaller portfolio of homes) tends to have a genuine edge over a high-volume corporate branch.

3. One agent may be 'buying the instruction'

This is the most commercially uncomfortable truth in estate agency. Some agents deliberately quote a high figure to win your business, knowing that once you're signed up and the property isn't selling, they'll suggest a price reduction. It's known in the industry as "overvaluing to win the instruction" and it's more common than agents publicly admit.

Research by property platform Homeowners Alliance has highlighted this as one of the most consistent complaints from sellers: a high initial quote followed by pressure to drop the price weeks later. You can read more about this risk in our article on whether you should trust the highest estate agent valuation.

4. Different fee models create different incentives

A self-employed or hybrid estate agent typically earns a percentage of the final sale price with no base salary safety net. That creates a direct incentive to price accurately: if your home sits unsold, they earn nothing. A salaried branch negotiator, by contrast, is paid regardless of whether your specific sale completes, so their incentive is often weighted towards listing volume, not sale price.

5. The market has moved, and not everyone has kept up

In a fast-moving market, sold data on HM Land Registry can lag by six to twelve weeks. An agent actively transacting in your area right now will feel the current pulse; one who hasn't listed on your street recently may be working from stale data. According to HM Land Registry, the average time between sale agreed and registration is typically around two to three months, which means official sold prices are always slightly behind reality.

How big a gap between valuations is normal?

A difference of 5–10% between the highest and lowest valuation is common and not necessarily a red flag on either end. A gap wider than that warrants closer scrutiny, particularly if one figure stands significantly above the others. Ask the outlier agent to walk you through their exact comparables. If they can't point to specific sold properties that justify the number, treat it with caution.

For a fuller picture of how to establish your home's value using multiple methods, see our guide on how much your house is worth in 2026.

What to look for in a trustworthy valuation

A credible valuation should include:

• Specific sold comparables: addresses and sale prices from HM Land Registry, not estimates or asking prices
• An honest assessment of your property's condition. An agent who says nothing negative about your home isn't being helpful
• A clear pricing strategy. Are they recommending a guide price, offers over, or offers in excess, and why?
• A realistic timeframe. How long should you expect to wait for an offer at this price?
• Local market context: what's actually selling right now, and what's sitting?

If you're not sure what to expect from the appointment itself, our article on what happens at an estate agent valuation walks you through it step by step.

Should you always go for the middle valuation?

Averaging three valuations is a reasonable starting point, but it's not a reliable method on its own. The right price is the one supported by the best evidence and delivered by the agent with the sharpest knowledge of your specific market. If the middle figure happens to be the one with the strongest comparable evidence, great. If not, follow the evidence.

What you should almost never do is choose an agent primarily because they gave you the highest number. That's a reliable route to an overpriced listing, dwindling viewings, and an eventual reduction that signals to buyers that something is wrong.

How a personal estate agent approaches valuation differently

A personal estate agent, meaning a self-employed agent backed by a network such as eXp UK, typically carries a smaller portfolio of active listings than a high-street branch. That means more time spent understanding each property, more current knowledge of what buyers are actually paying locally, and a direct financial stake in getting the price right from day one.

Because they earn on completion, not on signing-up, there's no commercial logic in flattering your expectations. The conversation tends to be more honest: here's what the data shows, here's what I've seen buyers pay recently, here's where I'd price it and why.

If you'd like to find someone like that in your area, you can match with a personal estate agent using our free tool, or browse personal estate agents by location.

A practical checklist before you decide

1. Get at least three valuations, ideally from agents with recent sales on or near your street
2. Ask each agent for their sold comparables in writing or shown on a tablet during the visit
3. Check those comparables yourself on Rightmove's sold prices or HM Land Registry
4. Discount any agent who can't back up their figure with evidence
5. Choose based on trust, evidence and local track record, not the biggest number

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This article is general information about how estate agent valuations work in England and Wales. It is not financial or legal advice. Property values and market conditions vary, so always take professional guidance specific to your situation before making selling decisions.