From what I've seen, Oodle probably has the most streamlined process for posting a property for sale. You don't have to navigate through page-after-page of details to post a property. Property sellers can fill out one simple submission form to get their entire listing compiled and posted in a matter of seconds (and it's especially fast if you already have the listing information prepared and you're just copying it from another source).
If either of these things are inhibited, it wouldn’t be highly unlikely that the land can be secured in the way you describe. In a free market, the seller can (and usually will) sell to whoever is offering the best deal at the right time – so if the developer can’t be competitive in this way, it boils down to the old saying, “Beggars can’t be choosers”.
Here are reasons why I believe an Exclusive Listing Agreement is better for the seller when it comes to selling land. (Let me preface all of these reasons with the assumption that you have researched prospective listing agents with experience in selling land and you are only going to deal with ones that appear to be qualified and have good reviews. For more explanation read, “Not All Agents are Competent About Land.”
Very good question, Trevor. We plan to do a blog article on this subject soon. You are pretty much on the mark with your example of 25% of the final to-be-built home’s value as a rough guide to a lot’s value. You’ll see that some markets use different valuations (even within the same city or region), but in many markets an estimation of the value of the lot generally can range from around 20% of the home value (for more rural or lower price point homes) up to around 30% or more (often for higher end communities or for urban/infill areas with less lot supply and higher home prices). Of course for some lots/properties these rules simply don’t apply, like oceanfront lots or land with other unique characteristics.
Pricing land can be trickier when compared to pricing a home. Developed lots in communities may have a clear “market” price based on the recent sale of similar lots. Raw land, however, may have fewer “comparable” sales to use in determining your price. In addition, the price you ultimately can attract for a singular lot or undeveloped land can vary greatly depending on the buyer’s intended use of the property. For example, if a buyer feels that your acreage is appropriate for a high-end home development it likely will bring a higher price per acre than if a buyer only intends to build a single home on it.