Boston has been a strong and high absorption market historically meaning that properties come on and off the market very quickly because the abundance of qualified consumers in this marketplace.

Record high occupancy, high absorption rate with balanced rate of supply.Steady job and population growth over the last few decades.  

Finally, I would evaluate the demand for retail space of the same square footage in that market: what is the vacancy rate, 12 mo net absorption, and SF under constructions.

Sold Price vs. last asking price - essentially, the % above/below asking price that the property sold for.If you want to look deeper into things, check out the area's active inventory & absorption rate.

"There's been more absorption and desire from tenants, particularly in the e-commerce sector, to take larger buildings as everyone reassesses their supply chains."

:/A few nuggets, and others......not so much :)Anyway, Here's my educated response to the OP's question.In general, the Appraiser should be taking into account recent neighborhood market trends (recent sales/comps, absorption, DOM, etc) and current trends (active listings, pendings, cancelleds, expireds, absorption, DOM, etc), and reconciling those trends with the specific Subject transaction.The conclusions may contribute to positive adjustments to the comps, resulting in an appraised value higher than recent comps.Simplified Example: Subject contract price = $102kRecent sales (same models-no adustments necessary)Comp 1 - $95k COE (close of escrow) 6 mthsComp 2 - $97,500k COE 3 mthsComp 3 - $100k COE 1 mthsComp 4 - $99k COE 3 mthsAppraiser determines recent market trends are appx 12%/yr or 1%/mthTime adjusted SP's are:Comp 1 - $102,820Comp 2 - $101,400Comp 3 - $101,000Comp 4 - $101,970The Appraiser may be justified in concluding a market value of $102kThat's one way.

Aside from timing your market properly, do you see how the Los Angeles markets are now inverted, with the absorption-line crossing below the value-line?

Compacted soils can reduce the soil absorption field’s ability to treat wastewater.

However, I hope you're also looking at new construction data (like permits issued and completions) and absorption rates if you're getting into development. 

@Jeff TumbarelloSome others to add:Exit strategyExit cap rateSensitivity analysisAnnual expense increasesAnnual rent increasesIf renovations - absorption rates