Retrofit Atlas

Malls · Massachusetts

Bayside Mall

Imported, unreviewedRedevelopedRetrofit approvedDorchester, MA

Bayside Mall, opened 1960s, failed, demolished 2016, now approved for mixed-use biotech park by Accordia Partners under UMass Boston lease. · summary, model-written

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Site profile4 elements · what this retrofit is built with · tap a chip for the evidence

Finance and pipeline
Retrofit in the pipelineThis site: …approved extraction · all sites with this
Ownership
University, hospital or churchThis site: University of Massachusetts Boston county-parcels · all sites with this
Strategy
RedevelopedThis site: extraction · all sites with this
New use
Mixed useThis site: …new_use field extraction · all sites with this

All elements and lists · Trends

Now

StatusRetrofit approvedextracted, unreviewed
documented
In 2023, the Boston Planning & Development Agency approved the Accordia Partners proposal.

en.wikipedia.org

StrategyRedevelopment, approvedextracted, unreviewed
documented
In 2020, Accordia Partners proposed redeveloping the property into a 21-building mixed-used biotechnology science park called 'Dorchester Bay City'.

en.wikipedia.org

New usesmixedextracted, unreviewed reported
Retrofit year2020extracted, unreviewed reported
RedeveloperAccordia Partnersextracted, unreviewed reported

Planning

Entitlement year2023extracted, unreviewed reported

Deals and debt

DateEventPricePartiesSource
2010Sold—University of Massachusetts BostonWikipedia

Site context

Attention: Wikipedia page views38,596 since 2015; 2,864 in the last 12 months (+3% vs the prior 12); peak 2023-04 with 1,026Wikimedia

Summary, model-written

Bayside Mall opened as a shopping mall in the 1960s, later transitioned to a convention center before declining. In 2010 the University of Massachusetts Boston purchased the foreclosed property, and after a roof collapse from heavy snowfall the facility was demolished in 2016. The site was leased to Accordia Partners in 2019, approved for a mixed-use biotech science park in 2023, and is currently under redevelopment.

Why. The record shows the mall's decline led to foreclosure, and the subsequent demolition was caused by a roof collapse from heavy snowfall. No explicit anchor loss, competition, or debt factors are stated in the record.

Where it stands. The site is approved for redevelopment and is under the control of Accordia Partners, which leases the property from the University of Massachusetts Boston.

For a planner

  • Entitlement granted in 2023 by the Boston Planning & Development Agency, reflecting a formal redevelopment approval.
  • Strategy listed as redevelopment with a planned mixed‑use outcome, indicating policy support for adaptive reuse.
  • Open questions not detailed in the record include construction timeline, phasing, and any community benefit or affordable housing provisions.

For a developer

  • Control: leased by Accordia Partners from the University of Massachusetts Boston (owner since 2010).
  • Entitlement stage: approved (2023); no further permitting details are provided.
  • Site size, flood risk, transit access, environmental constraints, and local market signals are not specified in the record.

What we do not know yet

  • Verification status is 'draft', indicating the record has not been fully reviewed.
  • Key physical details such as site acreage, building footprint, and parcel boundaries are missing.
  • Environmental and hazard context (flood zones, soil conditions, transit proximity) is not provided.
  • Market‑level data (tract demographics, rent comps, demand for biotech space) are absent, limiting opportunity assessment.
  • The opportunity score is 0.0 with reasons noting the project is already in play, but underlying drivers are not elaborated.

Generated by nvidia/nemotron-3-super-120b-a12b on NVIDIA API via Hermes CT from the fields, parcels, deals and context layers on this page, with no outside knowledge. It is regenerated when the record changes and has not been checked by a person. How it is made.

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Multifamily screen

  • already in play: under construction, approved, or sold to a developer with housing plans
  • housing in the record

Inputs: record fields (size, status) and county Census ACS 2018–2023 figures (growth, rent). How the points work. Not a recommendation.

History and original facts

Census division1 · New England
NotesWikipedia categories: Demolished shopping malls in the United States

Not yet recorded: acres, GLA, year opened, original developer, what is there now. Know it? Tell us.

Background

Bayside Expo Center was a convention center located in Dorchester, Massachusetts. Originally opened as a shopping mall called Bayside Mall in the 1960s, the mall later failed and the convention center opened in its place. In 2010, it was purchased by the University of Massachusetts Boston after the building went into foreclosure. After the building's roof collapsed from the weight of accumulated snowfall during the 2014–15 North American winter, the university demolished the facility in 2016. In 2019, the University of Massachusetts board of trustees leased the property to Accordia Partners. In 2020, Accordia Partners proposed redeveloping the property into a 21-building mixed-used biotechnology science park called "Dorchester Bay City". In 2023, the Boston Planning & Development Agency approved the Accordia Partners proposal.

Excerpt from Wikipedia (authors and history), CC BY-SA 4.0. May be older than the record above.

Timeline

  1. 2010 Purchased by University of Massachusetts Boston after foreclosure.
  2. 2016 Demolished by UMass Boston after roof collapse from heavy snowfall.
  3. 2019 Leased to Accordia Partners by UMass Board of Trustees.
  4. 2020 Proposed redevelopment into Dorchester Bay City biotech science park.
  5. 2023 Approved by Boston Planning & Development Agency.

Sources

  • Wikipedia: Bayside Mall · supports: status, strategy
    7 quoted sentences
    In 2023, the Boston Planning & Development Agency approved the Accordia Partners proposal.
    In 2020, Accordia Partners proposed redeveloping the property into a 21-building mixed-used biotechnology science park called 'Dorchester Bay City'.
    In 2010, it was purchased by the University of Massachusetts Boston after the building went into foreclosure.
    After the building's roof collapsed from the weight of accumulated snowfall during the 2014–15 North American winter, the university demolished the facility in 2016.

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