What a Property Enquiry Is Actually Worth

Most agents decide advertising budgets by feel: a number that seems affordable, adjusted by how the last month went. Then they judge the result by whether it "felt worth it".

There is a two-minute calculation that replaces all of that.

The arithmetic

Three numbers:

Your average fee. What you actually receive on a completed transaction, after any split.

Your enquiry-to-deal rate. Of every hundred enquiries, how many become a completed transaction? For sales agents this is often between one and five. Count it from last year rather than guessing — the guess is always optimistic.

Your target margin. What fraction of the fee you are willing to spend to acquire the deal.

Then:

Value of one enquiry = average fee × conversion rate Most you should pay = that value × your target margin

If your average fee is 3,000 and two enquiries in a hundred close, each enquiry is worth 60. If you are willing to spend a quarter of the fee on acquisition, you can pay up to 15 for an enquiry and still be ahead.

That single number resolves arguments that otherwise run for months. A channel producing enquiries at 8 is worth expanding. One producing them at 40 is a loss you are describing as brand-building.

Why the conversion rate matters more than the price

Agents obsess over cost per enquiry and ignore the multiplier sitting next to it.

Doubling your conversion rate does exactly what halving your cost per enquiry does — and it is usually far easier, because it depends on things entirely within your control: how fast you reply, what the first message says, whether the page they landed on answered their question.

An agent converting one in a hundred at a cost of 10 per enquiry is paying 1,000 per deal. The same agent converting three in a hundred is paying 333, with no change in advertising at all.

This is why "our leads are poor quality" deserves examination before it is accepted. Sometimes it is true. Often the enquiries are fine and the first reply arrived the next morning.

The three numbers nobody has

Cost per enquiry, by source. Not overall — by source. The average conceals the fact that one channel is carrying the others.

Conversion rate, by source. Also separate, and this is where shared portal leads reveal themselves. An enquiry that reached three agents converts at a fraction of an exclusive one. If you average them together, you will keep buying the wrong one.

Time to first reply, by source. The variable most strongly associated with conversion, and the one nobody logs. If you measure only one new thing this quarter, measure this.

What changes once you know

Cheap channels stop looking free. A board outside a property costs almost nothing and produces a handful of enquiries a year, but those enquiries are local, exclusive and warm. Divide the cost properly and boards often outperform the channel you spend most on.

Expensive channels stop looking expensive. If an enquiry is worth 60 and a channel delivers at 25, "expensive" is the wrong word. The right response is to buy more of it until the price rises to the point where it stops working.

Brand spending gets honest. Some spending genuinely does not produce measurable enquiries — sponsoring a local event, a board on a busy road. That is fine. Just call it what it is and cap it, rather than letting it hide inside a performance budget where it makes the arithmetic look worse than it is.

Why a monthly average hides the answer

Property demand is not evenly distributed through the year, and neither is cost.

In most markets there are two or three periods of high activity and one or two dead stretches. In the busy periods enquiries cost more, because everyone is advertising, and they convert better, because the people enquiring are motivated. In the quiet stretches enquiries are cheap and frequently poor.

An annual average conceals both facts, and the practical consequence is that agents spend evenly across a year in which the returns are anything but even.

Track cost per enquiry and conversion by month for one year. Most agents discover that a large share of their deals came from a small number of weeks, and that they were spending the same amount in the weeks that produced nothing. Shifting budget towards the periods that work is usually the single largest available improvement, and it costs nothing to make.

The value you are not counting

The arithmetic above treats an enquiry as worth one transaction's fee times a probability. That understates it, and understating it makes you spend too little.

A buyer who purchases through you is also:

• a seller, at some point, of the property they just bought;
• the source of referrals to people in the same situation, which cluster;
• a review, which improves the conversion of every future enquiry;
• and, if they are an investor, a repeat transaction rather than a single one.

None of that is speculative — it is simply delayed, which is why it never appears in a cost-per-lead calculation.

You do not need to model it precisely. It is enough to know the direction: the true value of an enquiry is meaningfully higher than the immediate fee times the conversion rate, which means the price you can afford to pay is higher than the simple calculation suggests. Agents who only count the immediate transaction consistently under-invest, then wonder why a competitor who appears to be overpaying keeps growing.

The starting point

You do not need attribution software. You need one question added to every enquiry conversation — how did you come across the property? — and one line in a spreadsheet.

Do that for eight weeks and you will know more about where your business comes from than most agents learn in a decade. The number that surprises people is almost never the one they expected to be surprised by.