@Chris Parker I'm not an agent - I'm a private investor. But, I scout development land hard in this South Everett area. I just locked down a business park-zoned site a few miles away, near Paine Field.
The Snohomish county Transfer of Development Rights program might do you some good near Everett Mall Way. These TDR credits are my REI stock in trade and my main current focus is acquisition, just starting to venture into the liquidation end that will result in receiving fat payments.
For the foreseeable future, the only place where you can "cash in" TDR credits is in the SW Urban Growth Area, which is the area of unincorporated county west of I-5, between the cities of Everett and Lynnwood. Everett Mall Way is inside this UGA.
But, to take advantage of TDR the land has to be zoned either MR (High Density Multiple Housing) or one of several business zonings. If it is, that opens the door to the near-term building of mixed use developments with ground floor retail in 75' buildings and an eye-popping permitted residential density of 58 units per acre.
The first 22 units/acre come the upcoming base permitting and you can boost this by another 36 units/acre by transferring in these new TDR credits, at the rate of one Receiving credit per extra unit. As a developer, this is essentially a streamlining of rezoning for higher density, which may or may not be approved. By using TDR credits, the rezoning is both immediate and guaranteed.
(PS I'm still open to JV partners with this TDR investing. There are far more opportunities than I have the funding for, or desire to chase. I'm drowning in deals.)
The market value of development land in this area ranges from about $20,000 to $40,000 per unit for the land cost part of the development. The prices will vary depending upon the location. 42% of 22 units is about 9 units that would be base-permitted on .42 acres. I'll let you do the math.
But, none of this does you any good if your land isn't zoned for commercial or MR. What's the zoning?
If it starts out with an "R," such as R-9600, you've got residential neighborhood land. This just might qualify for two lots. If there are no major flaws to the location, a ready-to-build residential lot in the Everett Mall area is probably worth just over $100,000. Certainly, there are lots of small builders who are looking for close-in lots. But, there are also some pretty "gritty" neighborhoods in the area, which hasn't seen a big gentrification push, yet. So, a lot of the market value is going to depend upon immediate locale.
If it's residential zoning and will accommodate two SFR lots, I'd put it on CraigsList at $250k and see if anyone nibbles.
If you want to do deeper market research, sign up for a free account with Redfin.com. It's easy to search for comparables in this neighborhood and they'll even send you emails when something new comes on the market. This is how I do my shopping for rural TDR source land acquisitions.
Another thing to consider is coming new change in Snohomish county land that will directly impact SFR zoning and that's nearing the end of the regulatory pipeline: This new regulation will lower the required land square footage to build duplexes in residential neighborhoods down to the same as for a single family home, instead of 150%. Land that will permit out for a duplex is worth more than SFR land, so you might be sitting on a future site for a pair of duplexes.
This change isn't a done deal, yet. It's been through the Planning phase and the county council has been briefed on it. But, the last time I checked about a month ago, the council had not yet scheduled public input and a hearing. Since I'm not planning to build duplexes in the near future, I haven't followed this closely.
My educated guess is that this duplex upzoning will complete in the Council before the end of 2016. For exact timing, you'd have to ask the lobbyist for the SnoKing Master Builders Association whether he approves or not, since the MBA calls most of the land use shots around here. If you want to buy elected officials in a larger market cheaply, Snohomish county is the place to spend your money.
You can find the latest duplex zoning info on the county website, probably in the Planning section under "Projects" or something similar. There's a section that lists all the Planning projects (including one to allow farm breweries on ag-zoned land), with links to the latest progress info. Each of these will have a designated program manager and if you email them, they'll (probably) put you on a mailing list to be notified about future hearings etc.
Hope that this helps. Please keep us posted on what you learn.