What Weller Development Partners does

Weller Development Partners is a privately-held, full-service real estate development firm headquartered in Bethesda, Maryland, founded by Marc Weller in 2012 (originally as Weller Development Company, rebranded in June 2022). The firm specializes in large-scale mixed-use, luxury hospitality, and waterfront developments, employing a proprietary "triple-bottom-line" methodology that integrates financial returns, community benefits, and environmental sustainability into project structuring. Its portfolio includes the 235-acre Baltimore Peninsula (formerly Port Covington), the award-winning Sagamore Pendry Baltimore hotel, Six Senses Grand Bahama ($250M+, opening 2026), Six Senses Napa Valley (2,900 acres, opening 2026), multifamily residential at 250/255 Mission Street, The Crossvines winery, Roost extended-stay hotel, and Reston National Golf Course. The team numbers approximately 60 employees, and the firm has delivered over $1 billion in cumulative development across more than 2 million square feet.

Revenue derives from three primary streams: (1) development fees for project management, entitlement, master planning, and construction oversight on lead-developed projects; (2) co-investment returns through equity participation alongside institutional partners including Goldman Sachs Urban Investment Group ($233M invested), Sagamore Ventures, Mohari Hospitality (up to $2.5B programmatic platform), and Pegasus Capital Advisors; and (3) hospitality operations from owned assets including Sagamore Pendry Baltimore, Sagamore Spirit Distillery, Nick's Fish House, Rye Street Tavern, Roost Apartment Hotel, and branded residences at Six Senses developments. The firm serves institutional investors and capital partners, global luxury hospitality brands (Six Senses/IHG, Pendry/Montage, Method Co.), municipal governments requiring public-private partnership expertise, and high-end commercial tenants.

The firm's go-to-market relies on direct enterprise development partnerships rather than traditional sales channels, with technical differentiation rooted in placemaking expertise, public-private partnership structuring (including a $660M TIF for Port Covington), and established brand relationships. The company maintains in-house horizontal development, master planning, and hospitality activation capabilities, supplemented by architecture partnerships with Olson Kundig, 3XN, Hord Coplan Macht, and Torti Gallas Partners. Operationally, Weller was replaced as head developer of the Baltimore Peninsula project by MAG Partners and MacFarlane Partners in 2022 at investor direction, while expanding its branded residential and luxury resort footprint internationally through Grand Bahama and Napa Valley developments.

Name

Weller Development Partners

Legal name

Weller Development Partners

Website

https://wellerdevelopment.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

Weller Development Partners is a Bethesda, Maryland-based full-service real estate development firm specializing in large-scale mixed-use, luxury hospitality, and waterfront projects, serving institutional investors, luxury hospitality brands, and municipal governments through a triple-bottom-line approach.

Ownership category

akta.pro rank

Product category

Real Estate Development

NAICS

Land Subdivision (23721), Residential Building Construction (23611), Nonresidential Building Construction (2362)

SIC

Operative Builders (1531), Land Subdividers & Developers (No Cemeteries) (6552), Real Estate Dealers (For Their Own Account) (6532), General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Real Estate Development Asset Management (Project/Construction-to-Stabilization) (BPAJAMAL)

akta.pro secondary industry

Residential Land Development & Subdivision Homebuilding (Build-to-Sell Communities) (IMAFABAL)

Keywords

• Mixed-use real estate development
• Luxury hospitality development
• Waterfront redevelopment projects
• Public-private partnerships
• Multifamily residential development

Headquarters

HQ city

Bethesda

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Others, Supply Chain

Revenue model

1. Real Estate Development Fees: Weller Development Partners generates revenue through development fees as the lead developer on large-scale mixed-use projects, collecting fees for project management, master planning, entitlement, and construction oversight.
2. Co-Investment Returns: The firm co-invests alongside institutional partners like Goldman Sachs Urban Investment Group and Sagamore Ventures in projects such as Port Covington ($5.5B development) and Mohari Hospitality partnership (up to $2.5B), generating returns through equity participation and profit sharing.
3. Hospitality Operations: Revenue from ownership interests in hospitality properties including Sagamore Pendry Baltimore hotel, Sagamore Spirit Distillery, and Rye Street Tavern, as well as branded residences at Six Senses developments.

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

Weller Development Partners is a full-service real estate development firm that acquires, entitles, finances, builds, and operates large-scale mixed-use, luxury hospitality, and residential developments. The firm leads projects end-to-end from master planning and horizontal infrastructure through hospitality brand partnerships and asset operations, co-investing alongside institutional capital partners under a triple-bottom-line approach.

Product overview

Weller Development Partners is a full-service real estate development firm specializing in experiential placemaking across large-scale mixed-use, luxury hospitality, and residential development projects. The company's portfolio includes diverse product categories: (1) Luxury Hospitality - Sagamore Pendry Baltimore hotel, Six Senses Grand Bahama resort (opening 2026), Six Senses Napa Valley resort (opening 2026), Roost Extended Stay Hotel, The Crossvines winery/events venue, Sagamore Spirit Distillery, Nick's Fish House, and Rye Street Tavern; (2) Mixed-Use Development - Baltimore Peninsula (235-acre waterfront project with 1.5M+ SF across five buildings) and Port Covington; (3) Multifamily Residential - 255 Mission Street (254 units), 250 Mission Street (162 units); (4) Recreation - Reston National Golf Course. The company operates with a triple-bottom-line approach focusing on financial viability, community benefit, and environmental sustainability.

Differentiator

Problem solved

Functional benefit

Products and services

• Six Senses Grand Bahama Luxury resort and branded residences development on Grand Bahama Island featuring 70 waterfront villas, approximately 20 branded residences, a marina, Six Senses Spa, multiple restaurants, and marine research facilities. Targeted at luxury travelers, branded residence buyers, and sustainability-focused hospitality clientele.
• Six Senses Napa Valley Luxury resort and branded residences development at historic Aetna Springs in Napa County, California, featuring 95 rooms/suites including tent-style accommodations, 16 branded residences, wellness facilities, mineral springs, vineyards, and multiple dining venues. Targeted at luxury wine country travelers and affluent residence buyers.
• Sagamore Pendry Baltimore Award-winning luxury hotel located in a historic 1914 building on Baltimore's Recreation Pier in Fells Point, featuring 128 rooms, Rec Pier Chop House restaurant by Andrew Carmellini, The Cannon Room whiskey bar, infinity pool, and harbor views. Targeted at luxury travelers visiting Baltimore's waterfront.
• Baltimore Peninsula 235-acre waterfront mixed-use development in South Baltimore featuring over 1.5 million square feet of residential, office, retail, and hospitality space across five buildings, with 10 acres of parks and public space. Targeted at institutional investors, commercial tenants, residential buyers, and the broader Baltimore community.
• Roost Extended Stay Hotel 81-unit extended-stay apartment hotel at Baltimore Peninsula designed by Hord Coplan Macht, featuring units designed explicitly for long-term stays with sophisticated industrial styling. Targeted at business travelers, healthcare and visiting professionals requiring extended accommodations in Baltimore.
• The Crossvines Multi-purpose winery, events venue, casual bistro, and custom grape-crushing facility in Poolesville, Maryland, featuring a research vineyard in partnership with educational institutions for viniculture training and education. Targeted at wine growers, craft beverage industry stakeholders, and event clients.
• Nick's Fish House Baltimore seafood restaurant and marina facility overlooking the Middle Branch waterfront in Port Covington, a 13,800 SF venue with outdoor deck, renovated facilities, and Baltimore Yacht Basin amenities. Targeted at diners, boaters, and waterfront visitors in Baltimore.
• Rye Street Tavern Chef Andrew Carmellini's American cuisine restaurant featuring a full bar, private dining spaces, waterfront courtyard, and 25-foot copper column still. Currently operated as a luxury event space by Sagamore Spirit Distillery. Targeted at diners, private event clients, and Baltimore visitors.
• Sagamore Spirit Distillery 22,000-square-foot whiskey distillery and event space in Port Covington, Baltimore, featuring the Rye Street Tavern restaurant and hosting luxury events at the waterfront property. Targeted at whiskey enthusiasts, distillery visitors, and event clients.
• 255 Mission Street 254-unit mixed-income apartment building with 293,000 SF of multifamily and retail space, featuring studios to three-bedroom units with waterfront views, rooftop space, fitness center, yoga loft, billiards room, and lounge with outdoor terrace. Targeted at multifamily renters seeking waterfront living in Baltimore.
• 250 Mission Street 162-unit residential community with 223,000 SF including 35 affordable dwelling units, offering studios to two-bedroom apartments with lounges, co-working spaces, fitness center, outdoor kitchen, and concierge services. Targeted at multifamily renters including affordable housing residents in Baltimore.
• 2455 Banner Street Mixed-use building in Baltimore Peninsula serving as headquarters for Capital Funding Group (CFG Bank) and the Jack and Nancy Dwyer Workforce Development Center. Targeted at commercial tenants and workforce development programs.
• Rye Street Market Mixed-use development in Baltimore Peninsula featuring the first commercial office lease at the development, home to H. Chambers Company architecture firm. Targeted at commercial office tenants and creative professional firms.
• Reston National Golf Course Golf course in Reston, Virginia, acquired in partnership with War Horse Cities, featuring environmental restoration initiatives and Audubon International sanctuary certification. Targeted at golfers, environmental program participants, and Reston community members.
• Port Covington 235-acre mixed-use waterfront development led by Weller Development Partners through Phase 1B completion, including up to 18 million square feet of development with residences, offices, retail, hotels, restaurants, piers, and 40 acres of green space. Targeted at institutional investors, mixed-use tenants, residential buyers, and the Baltimore community.

Quantifiable outcome

• $110+ million in MBE/WBE contracts committed, exceeding initial goals
• +5 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

20 partnerships are on record, tiered major, core and minor.

• HG ChristiemajorChannel Partner/ Reseller/ Distributor · 2 January 2024Leading real estate brokerage leading sales of Six Senses Residences Grand Bahama branded residences.
• Bespoke Real EstatemajorChannel Partner/ Reseller/ Distributor · 2 January 2024Luxury real estate brokerage leading sales of Six Senses Residences Grand Bahama branded residences.
• Method Co.majorStrategic or Co-development Partner · 22 February 2023Nationally-acclaimed development and design company rooted in hospitality, developing Roost Apartment Hotel at Baltimore Peninsula.
• Six Senses / IHG Hotels & ResortscoreStrategic or Co-development Partner · 24 January 2023Luxury hospitality brand partnership for Six Senses Grand Bahama and Six Senses Napa developments. Six Senses operates resorts in 17 countries with 34 properties in development pipeline.
• Olson KundigmajorImplementation/ SI/ Consulting Partner · 7 November 2022World-renowned architecture firm designing Six Senses Grand Bahama branded residences and Six Senses Napa. Led by Tom Kundig, known for historic preservation and adaptive reuse.
• 3XNmajorImplementation/ SI/ Consulting Partner · 7 November 2022Architecture firm designing the Six Senses Grand Bahama resort village, with focus on sustainable design and coastal resilience.
• Cal Ripken, Sr. FoundationminorStrategic or Co-development Partner · 27 October 2022Nonprofit foundation hosting annual Oysters & Crabs with Cal event at Nick's Fish House to benefit youth programs.
• KemperSportsminorStrategic or Co-development Partner · 21 July 2022Golf course management partner for Reston National Golf Course environmental restoration internship program.
• CornerstonesminorStrategic or Co-development Partner · 21 July 2022Fairfax County community organization partner for environmental restoration internship program at Reston National.
• Reston Community CenterminorStrategic or Co-development Partner · 21 July 2022Community partner for Reston National environmental restoration internship program serving local high school students.
• War Horse CitiesmajorStrategic or Co-development Partner · 1 January 2018Partnership with War Horse Cities (Scott Plank) to acquire and redevelop Reston National Golf Course in Northern Virginia.
• Montage Hotels & Resorts / PendrycoreStrategic or Co-development PartnerPartnership with Pendry Hotels (Montage offshoot) for Sagamore Pendry Baltimore, the first East Coast hotel for the boutique Pendry chain.
• MAG PartnersmajorStrategic or Co-development PartnerWoman-owned real estate firm taking over as development partner at Port Covington/Baltimore Peninsula alongside MacFarlane Partners.
• MacFarlane PartnersmajorStrategic or Co-development PartnerBlack-owned real estate firm taking over as development partner at Port Covington/Baltimore Peninsula alongside MAG Partners.
• Hord Coplan MachtminorImplementation/ SI/ Consulting PartnerArchitecture firm designing Roost Apartment Hotel and 255 Mission Street building at Baltimore Peninsula.
• Montgomery County Revenue AuthoritymajorStrategic or Co-development PartnerPartnership to develop The Crossvines winery and event venue on property hosting Poolesville Golf Course.
• Blue Action LabmajorStrategic or Co-development PartnerLocal partner in Grand Bahama collaborating on job training and skills enhancement programs for Six Senses Grand Bahama construction and operations.
• Plank IndustriesmajorStrategic or Co-development PartnerSagamore/Under Armour affiliate and partner on various Port Covington projects including Nick's Fish House.
• Patrick SuttonminorImplementation/ SI/ Consulting PartnerInterior designer for Sagamore Pendry Baltimore and Nick's Fish House, creating modern designs that honor historic buildings.
• Torti Gallas PartnersminorImplementation/ SI/ Consulting PartnerArchitecture firm for 250 Mission Street residential building at Baltimore Peninsula.

Scale indicators23 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Howard Hughes Holdings: Large-scale master-planned community developer (The Woodlands, Summerlin, Ward Village) that builds mixed-use, hospitality, and residential at scale. Directly comparable to Weller in master-planning expertise and waterfront/mixed-use execution, but operates at significantly larger scale across multiple geographies.
• The Related Companies: Nationally prominent mixed-use and affordable housing developer behind Hudson Yards and CityPlace. Comparable to Weller in luxury mixed-use, public-private partnership sophistication, and branded residential components, though at vastly larger scale and broader geographic reach.
• Tishman Speyer: Global real estate developer and investor in office, mixed-use, and life sciences (Rockefeller Center, The Spiral). Comparable to Weller in scale of mixed-use execution and institutional capital partnerships, but with broader global portfolio and longer track record.
• Trammell Crow Company: Major commercial real estate developer (subsidiary of CBRE) executing large-scale office, industrial, multifamily, and mixed-use projects nationally. Comparable to Weller in large-project execution and institutional capital partnerships, though at much larger scale and broader product mix.

Direct peers

• Cordish Companies: Baltimore-headquartered real estate developer and operator of mixed-use, entertainment, hospitality, and residential projects (Power Plant Live, Four Seasons Baltimore). Closest geographic peer to Weller with overlapping Baltimore luxury hospitality and waterfront development focus.
• MAG Partners: Woman-owned New York-based real estate development firm that replaced Weller as lead developer on Port Covington/Baltimore Peninsula. Directly comparable in mixed-use, multifamily, and public-private development execution; now operating in the same projects Weller previously led.
• MacFarlane Partners: Black-owned real estate investment and development firm that, alongside MAG Partners, replaced Weller as lead developer on Port Covington/Baltimore Peninsula. Directly comparable in mixed-use urban development focus and institutional capital sourcing.

Regional players

• Douglas Development Corporation: DC-based real estate developer specializing in urban infill, mixed-use, and historic redevelopment. Comparable to Weller in mid-Atlantic urban revitalization focus, public-private partnership expertise, and adaptive reuse/historic preservation capabilities.
• Beatty Development Group: Baltimore/DC-area mixed-use waterfront developer behind Harbor Point and other Fells Point/South Baltimore projects. Closely comparable to Weller in Baltimore waterfront redevelopment, multifamily/mixed-use product, and luxury hospitality integration.

Emerging players

• LCOR: Integrated real estate investment and development firm focused on large-scale mixed-use, multifamily, and transit-oriented projects. Comparable to Weller in mixed-use execution and institutional capital partnerships, with overlapping waterfront/large-project capabilities though operating primarily in the Northeast.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Weller Development Partners