An ADU That Belongs in a 1912 Residence Park
St. Francis Wood is not an ordinary place to build, and an accessory dwelling unit here cannot be treated as a stock plan dropped behind the house. This is one of San Francisco's original residence parks, opened in 1912 and laid out by the Olmsted Brothers along curvilinear streets, landscaped medians, and the fountains and entry pillars of St. Francis Boulevard. The homes are a deliberate mix of Spanish Colonial, French, Italian Renaissance, and storybook styles, set on generous lots shaded by mature eucalyptus. New Key Construction builds ADUs that read as a natural extension of that architecture, not a contradiction of it. We are a Bay Area design-build firm, which means one team handles both the design and the construction, with priced options up front and photoreal 3D renderings produced before any permit is pulled. When the people drawing the addition are the same people pouring the foundation, there is no gap between a beautiful rendering and a buildable reality.
Working Within St. Francis Wood's Historic and Permit Realities
St. Francis Wood now carries a layer of review that most San Francisco neighborhoods do not. The district was listed on the National Register of Historic Places, and the homeowners association has long enforced its own architectural standards through recorded covenants and a review process. An ADU here typically passes through both city and neighborhood expectations, so design choices around massing, rooflines, materials, and street-facing visibility are not afterthoughts. We design with those constraints in mind from the first sketch rather than discovering them at the counter.
On the city side, every ADU runs through San Francisco Planning and then the Department of Building Inspection, with additional review possible from Public Works, the Public Utilities Commission, and the Fire Department. Applications submitted on or after May 1, 2025 fall under the State Accessory Dwelling Unit Program, which standardizes much of the approval path, though San Francisco still reviews the plan set, the Notice of Addition, and code compliance. We prepare the full packet, coordinate the multi-agency review, and keep the historic-district considerations visible throughout.
Where an ADU Fits on a St. Francis Wood Lot
The deep, well-planted lots of St. Francis Wood and the surrounding residence parks near the West Portal and Forest Hill edges often hold real opportunity. We commonly design three forms here. A detached cottage at the rear of the lot, sited to preserve mature plantings and privacy. A garage or lower-level conversion that captures square footage already under roof, which often moves faster through review. And an attached unit that extends the main house while matching its stucco, tile, ironwork, and proportions. Because these homes were built with craftsmanship that is hard to fake, material matching is central to the work, and our renderings let you judge it before construction against the actual light and grade of your property.
One Team, Priced Up Front, Managed End to End
Most ADU frustration comes from the handoffs: an architect who never sees the site again, a contractor bidding from someone else's drawings, change orders that arrive once the walls are open. We remove those seams. New Key Construction designs, prices, and builds under one roof, with white-glove project management at every milestone. You approve priced options before the budget is set, you see photoreal 3D renderings before a single permit is filed, and you work with the same team from the first measurement to the final walkthrough.
Frequently Asked Questions
Do I need historic district or HOA approval for an ADU in St. Francis Wood?
St. Francis Wood is a recognized historic district and is governed by a homeowners association with recorded architectural standards, so most exterior work is reviewed for compatibility with the neighborhood's character. We design to those standards from the start and help you prepare for both the association's process and the city's. Garage and interior conversions with limited exterior change are often the smoothest path.
How long does the San Francisco ADU permit process take?
Timelines vary with scope and review load, but an ADU here generally moves through San Francisco Planning and then the Department of Building Inspection, with possible input from Public Works, the PUC, and the Fire Department. Conversions of existing space typically clear faster than new detached structures. We manage the full submittal and the multi-agency coordination so the schedule stays predictable.
What does an ADU in St. Francis Wood cost?
Cost depends on whether you are converting existing space or building new, the level of finish, and site conditions like grade and access on these sloped, planted lots. Rather than quote a number that cannot hold, we give you priced options up front after seeing your property, so you choose a scope against a real budget before committing. There are no surprise change orders driving the figure later.
Will the new unit match my home's architecture?
Yes. Matching the Spanish, French, Italian Renaissance, or storybook character of your home is the core of the work, from stucco texture and clay tile to window proportions and ironwork. You review photoreal 3D renderings of the proposed ADU against your actual house before any permit is pulled, so the match is confirmed before construction begins.
Can I convert my existing garage into an ADU?
In many St. Francis Wood homes a garage or lower-level conversion is the most efficient way to add a unit, since the square footage already exists under roof. It usually involves less exterior change, which helps with both city review and neighborhood compatibility. We assess your structure, drainage, and access first, then show you a priced, rendered design before work starts.
If you are considering an ADU in St. Francis Wood, start with a conversation and a site visit. We will show you priced options and photoreal renderings of what your unit can be, designed and built by one team that handles it all. Reach out to New Key Construction to begin.
