Proposal to Review Tree Valuation and Fines

Yerevan's current legal framework for tree damage faces two structural challenges: the administrative fines are significantly lower than the actual asset replacement cost, and liability is often deferred until total biological death (growth cessation). This proposal introduces a methodology for objective financial appraisal of urban trees as capital infrastructure.

Status: Proposal Published

Analysis of Current Regulatory Gaps

The current law on fines and its associated enforcement mechanisms present two primary obstacles to effective green infrastructure management.

The first issue is a significant valuation discrepancy. Fines are currently calculated using a linear formula that fails to account for the exponential ecosystem services and biological investment of mature trees. This creates a disparity where administrative penalties represent less than 6% of the actual asset value.

The second issue is the reliance on the "growth cessation" criterion. Under current practice, liability is often only established if a tree is proven to have reached a state of complete death. This ignores partial damage—such as the loss of significant root systems or canopy—which compromises structural stability and leads to slow decline over several years without immediate legal consequence.

Comparative Valuation: Current vs. CTLA Standards

Existing regulations rely on hard-coded tables with fixed values of unknown origin. Under these current laws, a mature tree with a trunk diameter of 89 cm is valued at only 395,000 AMD.

In contrast, the CTLA Trunk Formula—an industry standard—appraises the same asset at 10,437,000 AMD, which is over 26 times more. The methodology is straightforward and market-driven: it calculates a "unit cost" (the current market price per square centimeter of the trunk's cross-sectional area) based on the largest available nursery trees in Yerevan. This rate is then extrapolated to the total cross-section of the damaged tree and adjusted for its specific species, health, and location.

Transitioning to this asset-based valuation ensures that the city can recover the full cost of replacement and long-term maintenance required to restore the lost canopy using data that reflects current economic conditions.

Case Study: Grigor Lusavorich Street (Oct 2025)

During the 2025 utility works on Grigor Lusavorich Street, eight mature trees suffered critical root zone violations. The observed damage was severe, with excavation occurring as close as 0–50 cm from trunks, directly violating the 300 cm exclusion zone mandate. While the total administrative fines amounted to approximately 1.8M AMD (if the trees died immediately), the appraised asset value using CTLA standards reached 34.5M AMD, leaving an unrecovered infrastructure loss of 32.7M AMD. The Grigor Lusavorich case demonstrates that current penalties are insufficient to incentivize the adoption of tree protection standards by contractors.

For technical details, see the Full Arborist Incident & Valuation Report (PDF).

Regulatory Recommendations

The first priority is to reclassify trees as capital infrastructure assets. Amending legislation to treat street trees with the same legal protections and replacement requirements as other municipal infrastructure is essential for full cost recovery.

Secondly, the city should implement immediate citations for procedural violations. Penalties must be decoupled from biological death, allowing for fines based on the percentage of the critical root zone compromised, regardless of whether the tree dies immediately.

Furthermore, a system for ring-fenced recovery should be established through a dedicated green infrastructure fund. This ensures that all compensation collected through appraised valuations is deposited into a dedicated fund used exclusively for urban forestry and canopy restoration.

Finally, professional oversight must be mandated for all works within root protection zones. Requiring that such activities be supervised by certified arborists will minimize the risk of uncompensated asset damage and ensure adherence to modern biological practices.