Uncovering the transformation of one of San Francisco's most talked-about listings into a modern multi-level residence.
The evolution of San Francisco’s housing landscape often happens one lot at a time. This week, the spotlight is on Bernal Heights, where plans have finally surfaced for the redevelopment of a property that became an internet sensation for all the wrong reasons. The small, weathered structure at 167 Coleridge Street, once dubbed the "2-bed shed" by local media, is slated for a total transformation.
According to new filings, F2 Design is moving forward with a proposal to replace the existing single-family residence with a contemporary duplex. This project represents more than just a new building. It is a signal of the ongoing densification of one of the city’s most resilient neighborhoods. For property owners and developers, it serves as a case study in maximizing underutilized parcels through thoughtful architectural infill.
In this post, we will explore the details of the 167 Coleridge proposal, the historical context of Bernal Heights’ "earthquake shacks," and how this project fits into a broader trend of duplex conversions across the Bay Area.
What you will learn
- The specific architectural details of the proposed 3,700-square-foot duplex at 167 Coleridge Street.
- The historical significance of Bernal Heights’ small-lot development and its roots in post-1906 earthquake recovery.
- How current infill trends are reshaping neighborhood density and what property owners can learn from similar local projects.
The End of the 'Granny Shack' Era
For many San Franciscans, the address 167 Coleridge Street sounds familiar. In 2025, the property went viral after being featured in the San Francisco Standard. The listing showcased a tiny, 875-square-foot house with "puke-green appliances" and a cramped layout, hit the market for a staggering $800,000. It became a lightning rod for discussions about the city’s housing crisis and the premium placed on even the most distressed land.
The "granny shack," as it was affectionately (or derisively) called, was a relic of a different era. Built in 1900, it occupied a sloped 1,751-square-foot lot on the western slope of Bernal Heights. While the house itself was disparaged, the potential of the lot was undeniable. Now, that potential is being realized.
The new proposal from F2 Design, acting as both architect and developer through ELE Development LLC, seeks to demolish the existing structure. In its place, they envision a four-level complex totaling approximately 3,700 square feet. This move represents a quadrupling of the livable space on the site, moving from a single, substandard unit to two high-quality residences.
Architectural Vision: 3-Bed Luxury over Studio
The plans for 167 Coleridge Street reflect a sophisticated approach to San Francisco’s RH-2 (Residential House, Two-Family) zoning. Rather than simply building another single-family home, F2 Design has opted for a duplex configuration that caters to multiple demographics.
The primary residence is designed as a three-bedroom unit occupying the upper levels, likely offering the expansive views of the Mission District and the city skyline that Bernal Heights is known for. Below this main unit, the plans call for a studio apartment. This layout is increasingly popular in San Francisco development, as it allows for multi-generational living or the opportunity for a homeowner to generate rental income to offset the high costs of construction.
The building's massing is designed to work with the natural slope of the lot between Virginia Avenue and Fair Avenue. By utilizing four levels, the project maximizes the vertical space without exceeding the typical neighborhood envelope. While aesthetic details are still being refined, the initial renderings suggest a contemporary finish that blends wood textures with modern cladding, a far cry from the weathered green siding of its predecessor.
History as a Foundation: The Refugee Shacks of Bernal Heights
To understand why Bernal Heights is seeing this surge in small-lot redevelopment, one must look back to 1906. After the Great Earthquake and subsequent fires, the city constructed thousands of "refugee shacks" to house displaced residents. Bernal Heights became a primary location for these small, sturdy structures.
Many of these shacks were eventually moved to permanent lots and expanded over time. They gave the neighborhood its unique, eclectic character and contributed to the prevalence of smaller-than-average parcels. Today, these shacks are reaching the end of their functional lifespans.
The redevelopment at 167 Coleridge is a modern chapter in this long history. It respects the neighborhood’s tradition of "making do" with small spaces while upgrading the infrastructure to meet 21st-century building codes and density needs. The transition from a 1900s cottage to a 2026 duplex is a natural progression for a neighborhood built on rapid recovery and incremental growth.
A Growing Trend: The Bernal Heights Infill Movement
The project at 167 Coleridge is not an isolated event. It mirrors several other notable developments in the area that signal a broader shift in how Bernal Heights is being built out.
Take, for example, the recent work at 107 Franconia Street. There, Winder Gibson Architects and R Group Inc. pursued a similar strategy: tearing down a legacy single-family home to create a high-end duplex. These projects show that developers are increasingly looking at Bernal Heights as a prime location for "missing middle" housing.
Furthermore, 167 Coleridge sits directly across from the proposed affordable senior housing project at 3333 Mission Street. The proximity to this larger-scale development underscores the changing nature of the corridor. As larger lots are developed for high-density public housing, the surrounding residential streets are seeing a complementary increase in private, small-scale density through duplexes and ADUs.
Navigating the Development Process
Currently, the 167 Coleridge project is in the project review meeting phase. No formal planning permits have been filed yet, and a total construction cost or timeline has not been publicly shared. This "pre-permit" phase is critical for developers in San Francisco. It involves vetting the design against the city's complex Planning Code and engaging with neighbors to address concerns about views, parking, and massing.
For property owners considering a similar move, this phase is where the value of a dedicated construction management partner becomes clear. Navigating the San Francisco Planning Department requires a balance of architectural vision and regulatory pragmatism.
| Milestone | Estimated Timeline | Status |
|---|---|---|
| Initial Site Assessment | Q4 2025 | Completed |
| Concept Design (F2 Design) | Q1 2026 | Completed |
| Project Review Meeting | July 2026 | Current Phase |
| Planning Permit Filing | Late 2026 | Upcoming |
| Building Permit Issuance | Mid 2027 | Projected |
| Groundbreaking | Late 2027 | Projected |
| Construction Completion | Late 2028 | Projected |
What Smart Critics Argue
While many welcome the added density, there are always dissenting voices in neighborhood development. Some critics argue that the replacement of "entry-level" (if $800,000 can be called that) cottages with high-end duplexes accelerates gentrification. They worry that the unique "village feel" of Bernal Heights is being eroded by modern, boxy architecture.
However, the counter-argument is based on housing math. A single, dilapidated shack does not serve the housing needs of a growing city. By creating two units where there was once one, the project at 167 Coleridge effectively doubles the housing capacity of the lot. Furthermore, new construction must adhere to modern seismic and energy efficiency standards, making the neighborhood safer and more sustainable in the long run.
Key Takeaways for Property Owners
- Density is the Priority: Moving from a single-family home to a duplex (or a duplex with an ADU) is the most effective way to add value to a San Francisco lot.
- Design-Build Synergy: Having the architect and developer work as a single unit, as seen with F2 Design, can often streamline the decision-making process.
- Lot Potential Over Structure: The value in many Bernal Heights listings is in the land and the zoning, not the existing physical building.
- Historical Context Matters: Understanding the history of earthquake shacks helps in navigating the neighborhood's sentiment and architectural heritage.
- Phase One is Discovery: Don't skip the project review phase. Early feedback from the Planning Department can save months of rework later.
- Watch the Neighborhood Pulse: Projects like 167 Coleridge and 107 Franconia are setting the benchmark for what is possible and expected in Bernal Heights.
Reader Actions
- At Work: Review your portfolio for single-family residences on multi-unit zoned lots (RH-2 or RH-3). These are prime candidates for infill development.
- At Home: If you live in an older Bernal Heights cottage, consider a feasibility study to see if an ADU or a full duplex conversion is viable.
- In the Community: Attend local Planning Department meetings for projects like 167 Coleridge to understand how your neighborhood is evolving.
- In Civic Life: Support policies that streamline the conversion of single-family lots into duplexes, which directly addresses the regional housing shortage.
- The Extra Step: Research the San Francisco "Housing Element" to see how your specific neighborhood is slated for growth over the next decade.
FAQ
Is 167 Coleridge Street open for sale?
No, the property is currently under development by ELE Development LLC and is not on the open market as a finished product.
What happened to the "puke-green" appliances?
While their exact fate is unknown, they will certainly be removed as part of the demolition of the existing 1900s structure.
Can I build a duplex on any Bernal Heights lot?
Not necessarily. It depends on the specific zoning (like RH-2) and the lot size. Always consult with a general contractor or planning expert before making plans.
Will the new building block views?
View impact is a common part of the San Francisco project review process. The four-level design will be vetted to ensure it meets neighborhood height requirements.
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Sources:
- SFYIMBY, "Plans Revealed For 167 Coleridge Street In Bernal Heights, San Francisco," July 11, 2026.
- The San Francisco Standard, "Viral Listing: The $800K Granny Shack in Bernal Heights," 2025.
- San Francisco Planning Department, Property Information Map (PIM), 167 Coleridge St.
- F2 Design, Project Portfolio, Residential Infill Concepts.
- Bernal Heights Neighborhood Center, Historical Archives on Earthquake Shacks.
- SFYIMBY, "Townhome-Style Infill Proposed At 400 Franconia Street, Bernal Heights," June 2024.
Disclaimer: This content is for general informational purposes only and does not constitute legal, financial, engineering, construction, regulatory, or other professional advice. Reading this content does not create a client or contractual relationship with Atlas Premier Services & Consultants. Because every project and property is different, consult qualified professionals regarding your specific circumstances. Atlas Premier Services & Consultants makes no warranties regarding the accuracy or completeness of this information and is not responsible for third-party content or references. Testimonials, examples, and case studies are illustrative only and do not guarantee similar results.