Comparative market analysis: how to justify the price to the seller
A comparative market analysis positions the property against comparable properties that actually sold, not against asking prices. You take three to five comparables, adjust for the differences — area, floor, condition, location — and arrive at a range, not a single number. The range is what convinces the owner.
Why asking prices mislead
The first thing every owner does is open a portal and see what the neighbouring apartments are being offered for. That is where the expectation you walk into comes from.
The problem is that an asking price is a wish, not a fact. It does not show what the seller received, how many months the property sat, or how many times the price was cut along the way. The same building may hold an eighteen-month-old listing at a price nobody will pay — and that may be exactly the reference point your seller is using.
The analysis starts somewhere else: from the deals that actually happened.
Which properties are genuinely comparable
Comparable does not mean "in the same neighbourhood". It means a property the same buyer would consider instead of yours.
- Location — the same neighbourhood, and in larger ones the same part of it. Two streets can mean a different price.
- Type and area — within about 15% on floor area. Beyond that the comparison starts to lie.
- Recency — sales from the last six months. Older ones only if there is nothing else, and with that stated openly.
- Condition — new, maintained or needing work. This is the most frequently underestimated difference.
- Floor and aspect — ground and top floors move differently from the middle ones.
Three comparables is the minimum, five is comfortable. Below three it is not an analysis, it is an opinion with a table.
Adjustments: where the arithmetic happens
No comparable is identical to yours. The differences become a plus or minus on its price, to work out what it would have been worth if it were your property.
An example: the comparable sold for €180,000 but is 8 m² larger and has been fully renovated, while yours needs refreshing. You deduct the area difference at the local price per m² and deduct an estimate for the renovation. The result is an adjusted value, and that is what enters the range.
Adjustments always run in one direction — you adjust the comparable towards your property, never the other way. Mix the directions and the numbers stop meaning anything.
How to present it to the owner
This is where you win or lose the instruction at a realistic price. Three things work.
A range, not a number. "Between 168 and 176 thousand" lands far more easily than "172 thousand", because it leaves the owner a sense of choice and leaves you room to negotiate.
Show the comparables. Not the conclusion, but the properties behind it — address, area, condition, when it sold, for how much. An owner looking at three real sales argues with the market, not with you.
Say what each price means. At the top of the range the property sits longer; at the bottom it moves faster. That is the owner's choice to make, as long as it is an informed one.
How often it is refreshed
An analysis has a shelf life. In an active market, about three months. If the property is still on the books after that, the analysis is redone and the price conversation happens with the new numbers rather than the original ones.
That is why the analysis is built from your own completed deals rather than asking prices — the comparative analysis pulls the comparables from there, along with the average price per m² for the location.
Listings that sit for a long time without a single viewing almost always have a pricing problem, not a marketing one. A fresh analysis after three months is more useful than more photos.
Frequently asked questions
How many comparables are enough?
Three is the minimum, five is the comfortable number. More rarely adds accuracy but always adds time. If you cannot find three, that is information in itself — the property is atypical and the range should be wider.
Where does the data on actual sales come from?
From the agency’s own archive — your closed deals are the most reliable source, because you know the exact price and the condition of the property. Portals show asking prices, not sale prices, so they are useful for reading supply, not for valuation.
What do I do when there are no comparables?
For an atypical property you move to a cost or income approach, widen the range, and say so openly to the owner. "Between 240 and 280 thousand, because I have nothing to compare it with" is more honest than a precise number resting on nothing.
The OptiEstate teamWe build the software Bulgarian agencies use every day. We write about what we see there.
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