top of page

Our Portfolio

151 Cambridge Street
Boston, MA
 

Overview​

​

The City of Boston Mayor's Office of Housing has partnered with Caste Capital and Preservation of Affordable Housing (POAH) to spearhead an impactful redevelopment in the vibrant West End/Beacon Hill neighborhood. This project will deliver 119 units of 100% affordable housing, addressing the pressing housing needs of the community.

​

Project Features​​

​

Affordable Housing: The development will provide 119 units dedicated to affordable living, ensuring residents can thrive in one of Boston's most sought-after areas.

​

Community Resource: A new Boston Public Library branch will be constructed at the base of the development, enriching the neighborhood with valuable educational and cultural resources.​

​

Completion Timeline: The project is expected to be completed in 2027, marking a significant milestone in Boston's ongoing efforts to enhance housing accessibility and community services.

Community Benefits​​​

Asset Class
Multi-Family, Affordable Housing

 
Project Type
Redevelopment, Tax Credit

Location
Boston, MA


Partnership
Preservation of Affordable Housing (POAH)
City of Boston
Size
186,000 SF
119 Units


Status

In progress, 2027 anticipated delivery
 

This public-private partnership not only aims to meet the housing demands of Boston's residents but also seeks to foster a sense of community through the integration of essential public amenities. The addition of a library will serve as a hub for learning and engagement, further enhancing the quality of life for all who live and work in the area.By prioritizing affordable housing and community resources, this initiative underscores Boston's commitment to creating inclusive, vibrant neighborhoods that cater to diverse populations.

Rendering 1
Rendering 2
Rendering 4
Rendering 3
10 Malcolm X Blvd
20 Malcolm X Blvd

10 Malcolm X Boulevard
Roxbury, MA
 

Overview​

​

In partnership with SV+ Partners, and Trax Development 10 Malcolm X Boulevard is a vibrant mixed-use development in Nubian Square. This transformative project aims to revitalize the area while honoring its rich cultural heritage.​

​

Project Features​​

​

Housing: 123 total units, offering both rental and homeownership opportunities

​

Commercial Space: Approximately 37,000 square feet for retail and commercial use

​

Public Space: A significant new public plaza at the corner of Malcolm X Boulevard and Shawmut Avenue

​

Existing Building: Rehabilitation of the former Roxbury Boys Club, now converted into offices​

Community Benefits​​​

The development team has prioritized community engagement and impact throughout the project's evolution. The development team engaged local community groups through collaborative design workshops and integrated local artists' work throughout the site, while maintaining a deep commitment to preserving the area's historic and cultural legacy. Landscape design received meticulous attention, featuring thoughtfully designed open spaces, a network of connecting paths, and plans to plant 71 new trees to create a cohesive, green urban environment that fosters community connection and enhances the site's ecological footprint.​This project represents a significant step in the ongoing revitalization of Nubian Square, blending housing, commercial opportunities, and public spaces to create a vibrant, community-oriented development. Construction is expected to begin in 2025.​

Asset Class
Mixed Use Office, Multi-Family, Retail

Project Type
Redevelopment

Location
Roxbury,MA


Partnership
SV+Partners, Trax Development
Size
162,000 SF
123 Units of Housing

37,000 SF of Office & Retail

Status

In progress, 2027 anticipated delivery of Multi-Family & Retail
 

Hartwell Labs
25 Hartwell Ave
24 Hartwell Ave
Hartwell Labs
24 Hartwell Ave
40 Hartwell Ave
12 Hartwell Ave

Hartwell Labs
Lexington,MA

​
25 & 40 Hartwell Avenue
Lexington, MA  

12 & 24 Hartwell Avenue
Lexington, MA​ 

Overview​

 

In partnership with Greatland Realty Partners, The Hartwell Avenue Portfolio consists of Life Science, Flex, and Office buildings in the Hartwell Innovation District. ​

​

Project Features​

​

Lab Space: Approximately 33,000 square feet of Laboratory space occupied by RapidBio Systems. 

​

​Flex/Office Space: Approximately 162,000 square feet of Flex/Office currently occupied by innovative companies such as Diversified Technologies, and Thermofisher.  

​

​Proposed Development: A fully permitted 272,000 square foot Class A Life Science facility.  â€‹â€‹â€‹â€‹â€‹

Community Benefits​

The Hartwell Avenue Portfolio boasts intrinsic community benefits through its physical functionality. It is designed to accommodate leading innovation companies conducting groundbreaking research and development work that advances society.​​​

Asset Class
Life Science, Flex/R&D, Office

Project Type
Value Add, Redevelopment

Location
Lexington, MA


Partnership
Greatland Realty Partners
Size
467,000 SF


Status
Existing, Hartwell Labs permitted development
 
167 Sidney Street
99 Erie Street
167 Sidney Street
99 Erie Street
99 Erie Street

Cambridgeport Labs

99 Erie Street​
Cambridge, MA​

167 Sidney Street
Cambridge, MA​ 

Overview​

​

In partnership with Greatland Realty Partners, CambridgePort Labs consists of two (2) Life Science assets. These laboratories are located in Cambridge, MA, the world's leading life science and innovation market. ​

 

Project Features​

 

Lab Space: Approximately 57,000 square feet of Laboratory space occupied by Merck.

​

Community Benefits​

 

 

CambridgePort Labs boasts intrinsic community benefits through its physical functionality. It is designed to accommodate leading innovation companies conducting groundbreaking research and development work that advances society.​​​

Asset Class
Life Science

Project Type
Value Add

Location
Cambridge, MA


Partnership
Greatland Realty Partners
Size
57,000 SF

Status

Existing
© 2025 CASTE CAPITAL,LLC ALL RIGHTS RESERVED
bottom of page