Nairobi villas: is energy performance widening the negotiation gap?

I’m comparing Nairobi villas listed from KES 90,300,000 to KES 135,400,000. The snapshot shows 3.1% movement and roughly 86 days on market, but negotiation discounts vary sharply with condition. My working theory is that energy performance explains more of that spread than headline demand does. Does the evidence support that, or am I mistaking general renovation risk for energy costs? Neighbourhood, villa type and recent completed-sale evidence would be especially useful.
 
Condition is the likely confounder. A villa needing broad repairs may also perform poorly on energy, so buyers discount the whole package rather than calculate energy costs separately. I would compare similar-condition villas first, then see whether the energy difference still affects the final price.
 
What exactly does the 3.1% represent: asking-price movement, completed prices, or a change in the active-listing mix? Also, are the 86 days measured from first advertisement or the latest relisting? Those definitions could materially change the conclusion.
 
Completed sales would carry more weight than current advertisements here. Asking prices reveal seller expectations, while the hypothesis concerns what buyers eventually negotiate. Even a small table with original ask, final ask, completed price, days advertised and condition would make the comparison clearer.
 
I’m not convinced energy performance is the main driver. At this price level, uncertainty about the total work required could dominate any estimate of future running costs. Energy may simply be the most visible part of a wider condition problem.
 
Neighbourhood boundaries matter too. If the sample combines distinct pockets under broad listing labels, the apparent energy premium may actually be a location premium. Ana, are you using the advertiser’s neighbourhood name or assigning each villa to a consistent map area?
 
Don’t ignore withdrawn stock. An overpriced villa can disappear without a recorded sale, making the remaining listings look more liquid than the full market. The 86-day figure is hard to interpret unless withdrawn and relisted homes are tracked separately.
 
Price-cut timing could help distinguish weak demand from property-specific objections. A quick reduction may indicate seller motivation; a cut after a long quiet period says something different. I’d record both the number of reductions and the day of the first one.
 
That still leaves the reason for the cut unknown. Two apparently similar villas can have very different sellers behind them. Before attributing the negotiated gap to energy, separate properties that need a prompt sale from those whose owners can wait.
 
Buyer financing may also stretch the timeline independently of condition. I wouldn’t treat every long completion as evidence that the villa was difficult to sell. Are the 86 days listing exposure only, or do they include the period after an offer was accepted?
 
A workable layout would be one row per villa: tightly defined area, villa subtype, first-list date, relist date if any, original and latest ask, completed price where known, condition, energy-related attributes, and seller-motivation clues. Missing values should stay missing rather than being inferred.
 
Agreed on separating exposure from the post-offer period. I’d also reset neither the clock nor the original asking price when an unchanged property is relisted. Otherwise stale stock can appear new and the discount is understated.
 
Yes, but there should be a rule for substantial changes. If a villa is renovated and then returns to market, treating it as the identical listing could also mislead. Keep the history linked, while marking the point at which its condition changed.
 
The energy variable needs the same discipline. Unless performance is described consistently across listings, an apparent premium may reflect better marketing rather than a better-performing building. Separate directly stated attributes from assumptions based on photographs or general condition.
 
One simple test: compare matched villas within the same narrow area and condition band. Calculate the gap between final price and original ask, then compare that with the energy information available when each was marketed. It won’t prove causation, but it should expose whether the pattern survives basic controls.
 
I’d report the full spread rather than only an average. If a few heavily discounted renovation cases create the relationship, the hypothesis is much weaker. Showing each matched pair would also let readers challenge questionable condition classifications.
 
Condition categories should remain practical: ready to occupy, limited work, or broad renovation, with notes explaining the assignment. Too many categories will create a precise-looking result from subjective judgments. Keep energy-related work separate so the test doesn’t define its own conclusion.
 
Villa type may need another split. Detached, semi-detached and homes within managed compounds are not automatically comparable, even at similar asking prices. Ana’s price band is already wide enough that differences in the underlying product could overwhelm a modest 3.1% movement.
 
So far the strongest answer seems to be: plausible, but not demonstrated by 86 days and the headline movement alone. The minimum useful comparison is completed sales matched by narrow location, villa type and general condition, with relistings and withdrawals retained.
 
There is also a directional issue. If the 3.1% comes from active asking prices, it might rise because cheaper stock sold or was withdrawn, not because individual villas appreciated. Ana should identify which population changed before connecting that figure to buyer demand.
 
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