70 Washington Street, Boston, MA 02222 Mon–Fri 8:30 AM – 6:00 PM ET+1 (713) 434-4841info@concavodesarrolladora.com
Restored 1890s brick row house in Boston's South End

Restoration · South End, Boston

Washington Row Restoration

A six-unit brick row house from 1890 with failing masonry, original single-glazed windows and a heating system that had been patched four times. The owner wanted the building preserved rather than gutted, and wanted tenants to stay in place during the work.

We phased the project by stack: two units at a time, eight weeks each, with envelope work sequenced around occupancy. Repointing was matched to the original mortar profile, windows were replaced with historically appropriate profiles, and each unit received new mechanical, electrical and plumbing systems.

The building came in five weeks ahead of the phased programme with rental income maintained throughout.

ScopeFull envelope restoration and interior systems replacement
Units6 residential
DeliveryConstruction management, phased occupied work
Duration11 months
Completed2024
OutcomeDelivered ahead of schedule with no vacancy loss
Modern mixed-use building with ground floor retail in Dorchester

Mixed-use · Dorchester, Boston

Dorchester Avenue Mixed-Use

Ground-up construction on an underused corner parcel: 28 residential units over 6,400 square feet of ground-floor retail, with structured parking below. The site had utility conflicts on two frontages and required an Article 80 small project review.

Concavo led the project from acquisition due diligence through entitlement, design management and construction. The community process ran across four abutter meetings; the final massing lost one storey and gained an active retail frontage, which the neighbourhood association endorsed.

The building was fully electrified with air-source heat pumps and delivered under the Stretch Code with Mass Save incentives captured at design stage.

ScopeGround-up mixed-use development
Programme28 residential units, 6,400 sq ft retail
DeliveryFull development and construction management
Duration26 months including entitlement
Completed2025
OutcomeFully leased within four months of certificate of occupancy
Renovated bright apartment interior with oak flooring

Residential renovation · East Boston

Harborline Residences

Fourteen apartments across two adjoining buildings, both suffering from moisture intrusion, oil heat and layouts that had not been touched since the 1970s. The owner's brief was straightforward: lift the asset without pushing out the existing tenant base.

We rebuilt the envelope first — drainage, insulation, windows — then moved through the interiors on a rolling schedule. Oil boilers were replaced with individual heat pump systems, cutting operating cost per unit by roughly a third. All resident communication was handled in English and Spanish.

ScopeGut renovation and full electrification
Units14 residential across two buildings
DeliveryConstruction management
Duration9 months
Completed2023
OutcomeOperating cost per unit reduced approximately 30%
Aerial view of a townhouse community under construction

Ground-up · Quincy, Massachusetts

Mill Brook Townhomes

Thirty-six for-sale townhomes on a twelve-acre parcel, delivered in three phases so that early sales could fund later construction. The site required stormwater work, a conservation filing and a new internal road accepted by the town.

We ran the schedule so that each phase reached certificate of occupancy before the next phase broke ground, which kept carrying cost down and gave the sales team finished product to show from month ten. All three phases closed within the original 22-month programme.

ScopeGround-up for-sale residential, three phases
Units36 townhomes
DeliveryDevelopment and construction management
Duration22 months
Completed2022 – 2024
OutcomeAll phases delivered on the original programme

Also delivered

A wider sample of recent work

Chelsea Triple-Decker Conversion

2025 · Chelsea, MA

Three-family converted to four units with a code-compliant basement dwelling, new egress stair and full sprinkler installation.

Cambridge Laboratory Fit-Out

2024 · Cambridge, MA

9,200 sq ft tenant fit-out delivered as owner's representative, including MEP coordination and landlord work-letter negotiation.

Somerville Envelope Retrofit

2024 · Somerville, MA

Deep energy retrofit of a 1920s eight-unit building: exterior insulation, air sealing and heat pump conversion, HERS verified.

Everett Infill Duplex

2023 · Everett, MA

Ground-up two-family on a vacant lot, permitted through variance and completed in seven months from foundation.

Medford Feasibility Study

2023 · Medford, MA

Paid feasibility engagement on a 40-unit concept. Our recommendation was not to proceed at the asking price; the client renegotiated and later acquired at 14% less.

Revere Roof & Facade Program

2022 · Revere, MA

Portfolio-wide roof replacement and facade repair across five owner-held buildings, procured as a single competitive package.

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