3920 Know the Facts seal3920 Mystic River Park Condominiums

3920 Mystic Valley Parkway, Medford, MA 02155 · Independent owner site

Not affiliated with the Mystic River Park Condominium Trust, its board, or its managing agent. Independent owner site — not speaking for the board.

Stacks of masonry bricks left along the building exterior wall beside a visitors parking stall
These are bricks that were abandoned when the prior contractor abandoned the project in 2022 and have sat in this position for nearly five years.

Failing Brick & Mortar

The building's 'envelope': the brick and mortar skin that is supposed to keep water out.

11 stories

of high brick facade

$1M+

spent on a first repair attempt that was abandoned

Years

the project has sat stalled

$2–3M

new assessment expected

What 'envelope' means

The brick and mortar exterior is what engineers call the building envelope. When it fails, water gets into the walls and the units.

Warned years ago

3920 is an eleven-story building with a high brick exterior. Years ago, owners were told the exterior should be modified because leaks were anticipated. The leaks came.

A $1 million-plus false start

The board hired someone without specialized knowledge of this kind of work. A few years ago, that person abandoned the project after a little over $1 million had been spent. It has been stalled ever since.

Stacks of masonry bricks left along the building exterior wall beside a visitors parking stall
These are bricks that were abandoned when the prior contractor abandoned the project in 2022 and have sat in this position for nearly five years.

The board's own expert

The board then hired an independent expert, SOCOTEC, to assess the exterior. The expert identified major deficiencies and made specific recommendations.

In December 2024 the association's own consultant, SOCOTEC AE Consulting, LLC, investigated the building envelope, including exploratory masonry cuts at areas that had been repaired in 2022 and areas that had not. Its memorandum to the association is dated January 31, 2025.

Conclusion

“The investigation revealed that throughwall and knee-wall balcony conditions remain problematic, even in areas where prior repairs were reportedly completed. Flashing deficiencies, missing waterproofing elements, rusted rebar, and deteriorated mortar joints are contributing to ongoing water infiltration and structural concerns. Corrective action is strongly recommended to prevent further deterioration and preserve the integrity of the building envelope.”

SOCOTEC AE Consulting, LLC, memorandum to the Mystic River Condominium Association, January 31, 2025 (Project No. AE240035.2)

Among the findings

  • “Flashing was either missing or severely deteriorated.”
  • At areas repaired in 2022: “Conditions were similar to areas without prior work—flashing remained defective.”
  • “No visible ties or connections between inner and outer wythes of the masonry was observed”
  • “Significant rusting was observed on angles that support the outer wythe of the balcony knee wall”
  • “Severe rusting of vertical rebar was documented”

Read the full SOCOTEC memorandum (PDF)

Rejecting the expert and doing it cheap again

The board is expected to reject its own expert's recommendations and once again fix the exterior on the cheap.

The board is expected to reject its own expert and fix it on the cheap again.

What this means for owners and buyers

More than $1 million has already been spent, and another $2 million to $3 million is expected (see Debt levels). Leaks continue. Without a real fix, current owners and future buyers inherit a defective building that, after millions of dollars and constant leaks, will only get worse.

Prospective buyers should ask for the building’s balcony, railing, and other elevated-element safety and repair history.

Caveat emptor.

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