Hi Ben and others - Thanks for digging into the details of how the state compliance model works. I'm a Data Scientist by profession so the video seemed clear to me after a few viewings, but I'm still drinking my coffee and not firing on cylinders yet so I wanted to sanity check my understanding.
As I understand you, the crux of the problem is that the state model for calculating compliant units can not be used to accurately estimate the number of units that could by right be built on parcels that include wetlands. This stems from two factors: 1) The state model underestimates buildable area because it removes 20% of the area for "free space" before subtracting off the wetlands, rather than after subtracting wetlands (as seems more reasonable). This lowers the number of compliant units we get per parcel, which means we need more parcels to comply. 2) The actual number of units a developer can legally build on a parcel has nothing to do with the number of compliant units, but instead is simply the total parcel area (including wetlands) multiplied by the zoned density which under the HCA must be 15 units per acre. The upshot then is that if we include parcels with wetlands, the number of units that can be built by right may be many more than the number of compliant units. The number of compliant units is therefore extremely misleading for estimating how many units might be built by right. Do I correctly understand your points or have I missed something? Thanks again for the effort you put into digging in and explaining the details to us all. Cheers Rob Haslinger South Great Road On Tue, Nov 7, 2023 at 9:27 AM Benjamin Shiller <[email protected]> wrote: > I spent substantial efforts to understand the Housing Choice Act > Compliance model, and then create a video explaining the model and why it’s > flaws along with the parcels in option C may very well lead to 1326 housing > units in the rezoned area if parcels are combined, or over 1100 is parcels > are not combined. Either number is well more than the 640 units the > proposal is aiming for, and more than the 520 units we would seemingly have > to rezone for according to the law. Keep in mind, there are only about > 2080 housing units in Lincoln excluding Hanscom. Please consider watching > the video to learn about the flaws in the state’s model and why this may be > problematic. > > > > https://youtu.be/mqXo4TPw3MI?si=uJeutuF1eSa9VpRu > > > > -- > The LincolnTalk mailing list. > To post, send mail to [email protected]. > Browse the archives at https://pairlist9.pair.net/mailman/private/lincoln/ > . > Change your subscription settings at > https://pairlist9.pair.net/mailman/listinfo/lincoln. > >
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