The Land Committee of the Waltham Land Trust has conducted an inventory of all open space parcels of 4 acres or more in the city. For each parcel, the committee has investigated three characteristics:

• Size - The size in acres.

• Value - A number that combines several factors to determine a value for each parcel.

• Risk - A subjective assessment of the risk that a parcel might be developed.

For more information, see Open Space Evaluation Criteria.

Open Space Inventory Parcels by Risk Assessment

At Risk Parcels

The At Risk Parcels page shows the parcels that are most in danger of being developed.

Threatened Parcels

The Potentially Threatened Parcels page shows the parcels that have some threat of being developed.

Protected Parcels

The Protected Parcels page shows the parcels that have some degree of protection from development. Note that even for these parcels, there is some degree of risk that their protection could be removed.

Parcels lost to development

The Parcels Lost to development page shows parcels that have been developed since the year 2000, when this inventory was created.