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Westborough Real Estate | South San Francisco, CAListings

Westborough Real Estate | South San Francisco, CA

Westborough is South San Francisco’s largest and most comprehensively suburban residential neighborhood — a post-war development that covers a substantial portion of the city’s western section with the single-family homes, tree-lined streets, and community park infrastructure that define the aspirational mid-century American suburb. With a March 2026 median home price of approximately $1.3 million (up 12.4% year-over-year), Westborough sits at the premium end of South San Francisco’s residential market, offering buyers the city’s most established large-neighborhood character alongside the commute positioning and employment proximity that make South San Francisco a compelling value market.

Westborough Real Estate | South San Francisco, CA

Westborough is a park-adjacent western residential neighborhood in South San Francisco, in the western Westborough neighborhood adjacent to Westborough Park. Westborough is one of South San Francisco’s most desirable family neighborhoods, with the Westborough Park access, the hillside character, and the established community identity. The community provides direct access to South San Francisco’s amenities, schools, and employment corridors while maintaining its own residential identity.

Neighborhood Character

Westborough reflects the residential pattern of South San Francisco’s park-adjacent western residential areas, with the property mix, lot sizes, and streetscape that the neighborhood’s position within the city defines. Buyers drawn to this area prioritize the specific combination of location, school access, and price point that Westborough delivers within the South San Francisco market.

Market Position

$1M–$1.6M: Entry Westborough. Properties at the more accessible end of this neighborhood’s range.

$1.6M–$2.8M: The primary Westborough range. Well-positioned properties delivering the neighborhood’s full residential value.

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Westborough Real Estate | South San Francisco, CA in South San Francisco

South San Francisco Real Estate: The Industrial City Transformed by Biotech

South San Francisco carries the sign on Sign Hill that made it famous throughout the Bay Area: the giant white letters spelling "SOUTH SAN FRANCISCO THE INDUSTRIAL CITY" that the South San Francisco Chamber of Commerce placed on the hillside in 1923 still stand, but the city they represent has been transformed. The founding of Genentech in 1976 on a former warehouse site in South San Francisco — where the company made the first recombinant DNA drug approved by the FDA, ushering in the modern biotechnology industry — and the subsequent growth of the biotech cluster along the Bayfront and East Grand Avenue corridor has turned South San Francisco from a working-class industrial suburb into the global capital of the biotechnology industry. Roche, Pfizer, Bayer, and dozens of major pharmaceutical and biotechnology companies maintain research and development operations in South San Francisco, creating the most concentrated biotech employment cluster in the world and the employment base that has driven the city's residential market transformation.

The residential market in South San Francisco reflects both the city's industrial heritage and its biotech transformation. The hillside neighborhoods — Serra Highlands, Westborough, Sunshine Gardens — provide the family residential character on the slopes of Sign Hill and the western portions of the city. The downtown area along Grand Avenue, the original commercial corridor of the industrial era city, has been the subject of significant mixed-use redevelopment investment as the city has worked to create the more walkable, mixed-use downtown character that the biotech workforce seeks. The Caltrain station at South San Francisco provides the transit connectivity to San Francisco (15 minutes) and the Peninsula that positions the city as an accessible commute community.

The South San Francisco Unified School District serves K-12 students throughout the city. South San Francisco High School and El Camino High School are the primary secondary campuses. The district reflects the city's diverse demographic, with a significant working-class and immigrant-family population alongside the newer biotech-industry professional families.

How is the South San Francisco real estate market?

$1M–$1.7M: Entry South San Francisco. The most accessible residential ownership in San Mateo County, providing the biotech corridor employment access and the Caltrain connectivity at the entry tier.

$1.7M–$2.8M: The primary South San Francisco range. Updated single-family homes in the hillside residential neighborhoods with the Sign Hill character and the Bay views.

$2.8M–$5M+: Premium South San Francisco. The most desirable hillside properties, the largest homes in the established residential areas, and the properties with the strongest Bay and Peninsula view positions.

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Community

What’s it like living in Westborough?

Westborough is South San Francisco’s flagship post-war residential development — one of the largest and most comprehensively planned suburban subdivisions built in San Mateo County during the post-World War II expansion period. The neighborhood’s scale distinguishes it from South San Francisco’s smaller residential areas: Westborough has the critical mass of homes and population to sustain neighborhood commercial nodes, elementary school campuses within walking distance, and the community association activity that large established neighborhoods typically support. This scale translates to a neighborhood character that feels complete — fully realized, with the infrastructure and social fabric that make a residential community more than a collection of individual properties.

The housing stock in Westborough is primarily post-war ranch homes and split-level residences from the 1960s and 1970s — somewhat newer than Sunshine Gardens’ 1953-57 stock — with lot sizes that tend toward the more generous end of South San Francisco’s mid-century residential norm. Many Westborough homes have been updated over their ownership histories, and the neighborhood contains a broad range of conditions from extensively renovated properties with current finishes and systems to older homes that offer renovation opportunity at accessible price points. Buyers have meaningful options across this condition spectrum, with fully renovated Westborough homes competing with newer construction in neighboring cities on lifestyle quality.

The March 2026 median of $1.3 million places Westborough at the top of South San Francisco’s residential market — a meaningful premium over the citywide median of $1.1 million that reflects the neighborhood’s scale, established character, and family-friendly amenity base. For buyers who are comparing Westborough against comparable post-war residential neighborhoods in Millbrae, San Bruno, or Daly City, the price comparison consistently shows Westborough at a significant discount to equivalent-quality homes in those neighboring cities, driven by South San Francisco’s overall lower price positioning despite comparable commute access and amenities.

Westborough’s western position in South San Francisco gives it the best access to Highway 280 — the scenic inland freeway that many Peninsula commuters prefer over Highway 101. The 280 connection is particularly valuable for buyers commuting to Burlingame, San Mateo, Redwood City, or Palo Alto, where 280 provides a more direct route than 101. For commuters heading to San Francisco, both 280 (via the southern approach) and 101 (more direct) are accessible within minutes from Westborough. The neighborhood’s freeway access is one of its most consistently cited practical advantages over South San Francisco’s more easterly residential areas that sit primarily on the 101 corridor.

Westborough: Suburban Stability in Western South San Francisco

Westborough is one of South San Francisco’s most established suburban residential neighborhoods — the western portion of the city (bordering the San Bruno Mountain slopes) creates the family residential environment with the larger lot sizes, the single-family home character, and the suburban residential scale that the Westborough area delivers. The neighborhood’s proximity to the San Bruno Mountain State and County Park (with its extraordinary wildflower blooms, the rare butterfly habitat, and the hiking trail network that threads through the mountain’s ecology) creates the natural recreation access that the active Westborough family values as the daily-use outdoor infrastructure. The SSF Unified School District access, the Caltrain commute infrastructure, and the biotech employment proximity create the practical residential foundation that completes the Westborough family residential package.

Area Details

How are schools and jobs in Westborough?

South San Francisco Unified School District serves all public K-12 students in the city, operating elementary, middle, and high school campuses across the city’s residential neighborhoods. South San Francisco High School is the district’s primary high school, with El Camino High School serving a portion of the student population. The district has invested significantly in educational programming and facilities in recent years, reflecting the broader demographic and economic transformation that the biotech employment boom has driven in the city. Private school options are limited within the city but accessible in adjacent Daly City, San Mateo, and Burlingame within a 15 to 20 minute drive.

South San Francisco’s identity as “The Industrial City” — the slogan painted in large white letters on the hillside visible from Highway 101 — reflects the city’s historical role as a manufacturing and industrial hub for the Bay Area. In recent decades, this industrial identity has been dramatically transformed by the arrival of biotechnology: Genentech built its campus in South San Francisco in 1976, and the cluster effect of that anchor tenant has drawn dozens of life sciences companies to the city’s research parks. Today South San Francisco is the global capital of the biotechnology industry as much as any single location can claim that title, and this transformation has fundamentally changed the city’s economic and residential character.

Sign Hill Park — the hillside park from which the “South San Francisco” lettering is visible — provides hiking and open space access for residents of the neighborhoods that border its slopes. The Centennial Trail at Orange Memorial Park and other city parks provide additional recreational infrastructure. Access to SFO for residents of all South San Francisco neighborhoods is under 10 minutes by car, making the city among the most airport-convenient residential addresses in the Bay Area. Caltrain service at the South San Francisco station connects to San Francisco (approximately 25 minutes) and to San Jose and Silicon Valley employment centers (approximately 55 to 75 minutes).

Market Trends

How is the South San Francisco Real Estate real estate market?

South San Francisco has emerged as one of the Bay Area’s most value-competitive residential markets despite its proximity to some of the region’s most significant employment centers. As of June 2026, the citywide median home price is approximately $1.1 million — a fraction of comparable cities in San Mateo County to the south, yet positioned within minutes of Genentech’s global headquarters, San Francisco International Airport, and the Highway 101 corridor that connects to the Peninsula’s full employment geography. For buyers who want Northern Peninsula access at a meaningful price discount to cities like Burlingame, Hillsborough, and San Mateo, South San Francisco represents the most compelling value proposition in the county.

Individual neighborhoods vary around the city median. Westborough — South San Francisco’s largest and most suburban residential area — has seen prices climb to a March 2026 median of approximately $1.3 million following a 12.4% year-over-year increase. Sunshine Gardens, a classic post-war subdivision developed between 1953 and 1957, sits near the citywide median at approximately $1.13 million. Winston Manor is similarly priced near $1.1 million. The hillside neighborhoods (Serra Highlands, Sign Hill, Colina, Skyline Village) can trade at modest premiums for properties with bay views, while Downtown SSF’s smaller homes and mixed commercial-residential character typically sit at the lower end of the range.

The employment driver behind South San Francisco’s residential market is biotech — specifically the Genentech campus and the broader concentration of life sciences companies that has made the Highway 101 South San Francisco corridor one of the highest-density biotech employment zones in the world. This employment base provides structural residential demand that is less volatile than technology employment cycles, as biotech and life sciences research requires physical laboratory infrastructure that cannot be offshored. SFO proximity — under 5 minutes by car — adds another layer of demand from travel-related professionals. The Caltrain South San Francisco station provides rail connectivity to both San Francisco and Silicon Valley for buyers who commute by train.

For buyers who have been priced out of Burlingame, Millbrae, or San Mateo proper, South San Francisco offers the same general location on the Northern Peninsula with significantly more purchasing power per dollar. The city’s housing stock is predominantly mid-century single-family construction from the 1950s and 1960s, offering renovation opportunities at price points where the investment in updating kitchens, baths, and systems can be recovered in resale in ways that are more challenging in higher-priced markets where renovation costs represent a smaller percentage of total property value.

How is the South San Francisco Real Estate real estate market?

South San Francisco — self-styled the “Industrial City” for the large letters once displayed on its hillside — has undergone one of the San Francisco Peninsula’s most dramatic economic transformations, from the meat-packing, steel, and industrial base of the early 20th century to its current status as the global epicenter of the biotechnology industry. Genentech (founded 1976, now a Roche subsidiary) established its headquarters in South San Francisco and effectively created the biotech industry cluster that has made “SSF” — as locals call it — the most important biotech hub on the planet: an estimated 30+ biotech and pharmaceutical companies now have major operations in South San Francisco, making the life sciences the dominant economic engine of the city’s employment base and the residential demand. Median home prices in South San Francisco range from approximately $1.1M for entry-level condominiums to $1.8M for single-family homes, making SSF one of the more accessible single-family residential markets in the immediate San Francisco metro area.

South San Francisco’s residential market is driven by the biotech employment base (Genentech alone employs over 10,000 people in South San Francisco), the SFO proximity (the airport is approximately 5 minutes from most SSF residential addresses), the Caltrain commute access, and the BART connection (the South San Francisco BART station connects to the San Francisco Civic Center, the East Bay, and other regional destinations). The city’s hillside residential neighborhoods (Sign Hill, Brentwood, and the other elevated areas) offer the bay views and the residential tranquility that distinguish SSF’s premium addresses from the flatland industrial-adjacent neighborhoods. TKG’s Bay Area expertise includes the South San Francisco residential market, with particular depth in advising the life sciences professionals who are entering the SSF residential market for the first time.

FAQs

Why is Westborough South San Francisco’s most expensive neighborhood?

Westborough’s $1.3 million median — above the citywide $1.1 million — reflects the neighborhood’s combination of scale, established character, more generous lot sizes, and Highway 280 access that distinguishes it from the city’s other residential areas. The neighborhood’s large size creates the community infrastructure — elementary schools, neighborhood commercial nodes, park facilities — that smaller neighborhoods cannot sustain at the same density and quality. The combination of these amenities with the city’s overall value positioning relative to neighboring Peninsula cities sustains Westborough as South San Francisco’s most sought-after residential area for family buyers.

What is the housing stock like in Westborough?

Westborough homes are primarily post-war single-family residences from the 1960s and 1970s, generally somewhat newer than the 1953-57 Sunshine Gardens stock. Lots tend toward 5,500 to 7,500 square feet for most properties, supporting homes of 1,200 to 1,800 square feet in most original configurations, with some larger homes on expanded footprints. The neighborhood’s broad condition range — from extensively renovated to original-condition mid-century — provides buying opportunities across a price spectrum. Renovated Westborough homes with updated kitchens, baths, and systems typically trade above the neighborhood median, while original-condition properties offer entry at more accessible price points for buyers with renovation plans.

How close is Westborough to Highway 280?

Westborough’s western position in South San Francisco provides the city’s best access to Highway 280, with the freeway accessible in approximately 5 minutes from most Westborough addresses. This 280 access is a specific commute advantage for buyers heading to Burlingame, San Mateo, Redwood City, and Palo Alto via the inland freeway route, as well as for those commuting to San Francisco via 280’s northern approach. Highway 101 is also accessible from Westborough within a short drive for buyers who prefer that corridor or whose destinations are better served by 101.

What schools serve Westborough?

Westborough is served by the South San Francisco Unified School District. The western portion of the city is served by specific elementary campuses including Westborough Middle School and the elementary schools that feed into it; the specific assignment for any given address within Westborough should be confirmed with the district office. South San Francisco High School and El Camino High School are the district’s high school options, with assignment depending on address location. The district has been investing in curriculum improvements and facility updates, reflecting the demographic and economic changes that the biotech boom has brought to the city’s population base.

South San Francisco Real Estate FAQs

What does “Industrial City” mean for residents today? The “Industrial City” designation refers to SSF’s early 20th-century industrial economy — today, the city has largely transitioned from heavy industry to biotechnology and life sciences. The hillside residential neighborhoods of SSF are well-separated from the biotech campus areas near the bay, and the residential quality in the hillside areas has benefited from the investment and income that the biotech economy brings to the local residential market. The “Industrial City” sign on the hillside remains as a beloved local landmark.

How close is South San Francisco to the biotech employers? The South San Francisco Biotechnology Campus (along the Oyster Point Boulevard waterfront area) is within 10-15 minutes of most SSF residential addresses. The Genentech headquarters complex and the associated biotech tenants are concentrated along the waterfront, making SSF one of the shortest residential-to-employer commutes available in the Bay Area for life sciences professionals.

What are the schools like in South San Francisco? The South San Francisco Unified School District (SSFUSD) serves grades K-12. The district has invested significantly in school modernization and curriculum development in recent years, and the El Camino High School and South San Francisco High School provide the public high school options. Many SSF families also consider the private school options in the neighboring San Mateo County communities. The improving school quality and the relatively affordable housing are attracting more young families to South San Francisco.

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