At some point every aging parking lot forces the same question: do you resurface it, or tear it out and start over? The two options rarely cost anything close to the same, and the cheaper one is only cheaper if the lot is actually a candidate for it. An overlay laid over pavement that has failed underneath buys a season or two of good looks and then cracks in the same places it always did. Here is how the decision usually gets made.
An overlay fixes the surface. It does not fix the base. Resurfacing — often a mill-and-overlay, where the top inch or two is ground off and new asphalt is laid back down — is a surface treatment. It restores ride, drainage at the surface, and appearance, and it resets the clock on oxidation and raveling. What it cannot do is repair the compacted stone and soil holding everything up. If the layer under the asphalt is saturated, undersized, or contaminated, new asphalt on top of it will move exactly the way the old asphalt moved.
Read the failure pattern, not the square footage. Cracking that runs in long straight lines, surface raveling, faded gray asphalt, and shallow potholes at joints generally point to a surface-and-age problem — good overlay territory. Alligator cracking, where the pavement breaks into interlocking blocks, is the one to take seriously: it means the section is flexing under load because the support beneath it is gone. So do areas that sink, rock underfoot, or hold water after every rain, and potholes that keep returning in the same spot no matter how many times they are patched. Those are base failures, and they need full-depth repair — removing the asphalt and rebuilding the stone below — whether or not the rest of the lot gets resurfaced.
Then it becomes a question of how much. A lot with isolated base failure across a modest share of its area is usually handled as full-depth repair in those sections plus an overlay across the whole surface, so the finished lot reads as one pavement. When base failure is widespread — spread through the drive lanes, the truck routes, and the parking bays alike — patching it section by section stops making financial sense, because you end up paying for a rebuild in pieces and still inherit the weakest parts. That is the point where full reconstruction is the honest answer.
Drainage decides more of this than most owners expect. If water ponds on the lot or runs the wrong way, it is working into the base every time it rains, and it will do the same thing under new asphalt. A reconstruction is the opportunity to correct grade; an overlay can improve minor surface ponding but cannot re-slope a lot that was built wrong. If standing water is a recurring complaint, get the grading question answered before you price anything else.
Consider the timeline you are buying. Resurfacing a sound lot typically buys years of service and keeps the property usable through a shorter closure. Reconstruction costs more and takes longer, but it restarts the pavement's life entirely. The wrong comparison is overlay price versus reconstruction price. The right one is cost divided by the years each option realistically delivers on your lot — and whether you will be re-mobilizing crews and closing the same drive lanes again in three years.
Either way, the new surface only lasts if it is maintained: crack sealing as gaps open, and sealcoating on a regular cycle to slow oxidation.
If you are not sure which category your lot falls into, a free assessment can walk the pavement, identify where the failure is surface-deep and where it is not, and give you a scope for the option that fits.