Hillsborough Real Estate & Living Guide

What's the Hillsborough, CA real estate market like right now? As of April 2026, the median sale price for a single-family home in Hillsborough is $8,000,000 — with homes selling at 97% of list price, in an average of 16 days on market, and 1.8 months of supply. At nearly 3.7x the San Mateo County median, Hillsborough sits firmly among California's most exclusive residential communities.

Overview

Hillsborough is a small, entirely residential town of roughly 11,000 residents tucked between Burlingame to the north and San Mateo to the east, with I-280 forming its western boundary. There are no shops, no restaurants, no commercial corridors — by design and by ordinance. The town's founding principle, established over a century ago, was that Hillsborough would remain a pure residential enclave, and that character has never wavered. If you're looking for a walkable downtown, you'll find it immediately next door in Burlingame. But if you're looking for estate-scale privacy on the Peninsula, Hillsborough is the answer.

Geographically, the town divides into a relatively flat eastern section (lower Hillsborough) and a hilly western section that climbs toward I-280. Lower Hillsborough is closer to Burlingame and Caltrain, with older, established neighborhoods on larger lots. Upper Hillsborough — the hillside areas west of Skyline and around Skyfarm — offers more dramatic topography, longer driveways, and in many cases sweeping views of San Francisco Bay. The tradeoff is a longer drive to everything.

The housing stock is dominated by substantial single-family homes: the average sold home in April 2026 was 5,273 square feet on a lot just under 31,000 square feet (roughly 0.7 acres). You will not find a small starter home here. The entry price point for a single-family residence in Hillsborough — even at the most modest end — is typically north of $3.5 million, and the ceiling extends well into eight figures for hillside estates with Bay views.

Buyers who choose Hillsborough are typically high-income households prioritizing top-rated public schools, large lots, architectural character, and the prestige of one of the Peninsula's most recognized addresses. The town's strict residential zoning, mature tree canopy, and consistent maintenance of its housing stock have historically made it one of the most recession-resistant real estate markets in San Mateo County.

Market Snapshot — April 2026 (Single-Family Homes)

Source: SAMCAR / MLSListings. Single-family residential only.

Hillsborough's 97% sale-to-list ratio is one of the more notable figures in the county. In a market where most Peninsula cities are averaging 105–113% of asking price, Hillsborough sellers and buyers are negotiating much closer to the list price — reflecting the reality that ultra-luxury properties are harder to price precisely and take more time to find the right buyer. With only 15 sales in April on 19 active listings and 1.8 months of supply, this is still a tight market in absolute terms; it just operates on a different clock than Burlingame or San Carlos.

Neighborhoods

Lower Hillsborough (Eastern Flats)

Lower Hillsborough encompasses the flatter eastern portion of the town, closest to Burlingame and the El Camino Real corridor. This is where you find Hillsborough's most established estate neighborhoods — streets like Black Mountain Road, Floribunda Avenue, and the area around North Hillsborough School. Homes here tend to be on lots of 0.5 to 1+ acres, built primarily in the 1940s through 1960s in Tudor, Colonial, and Mediterranean Revival styles. Proximity to Burlingame Avenue's restaurants and shops — just minutes away — makes this the most convenient part of Hillsborough for day-to-day living. For buyers who want the Hillsborough address without a long, winding driveway, this is the place to start.

Carolands

Carolands is one of Hillsborough's most storied neighborhoods, anchored by the historic Carolands Chateau — a 98-room mansion modeled after a French château, now a landmark that defines the neighborhood's architectural ambition. Homes in Carolands range from mid-$3 million to well into eight figures and sit on some of the most private, heavily landscaped lots in the town. The neighborhood has a formal, European character that sets it apart from other parts of Hillsborough. Buyers here tend to be looking for a specific kind of grandeur — homes with motor courts, guest houses, and grounds that require full-time staff.

Skyfarm

Skyfarm is a hillside neighborhood in Upper Hillsborough that offers some of the town's most dramatic Bay views. Homes here are predominantly mid-century modern and contemporary in style, built into the hillside with open floor plans oriented toward the view. Lots are often irregular, with significant slope — which translates to spectacular outlooks and also to more complex landscaping and potential drainage considerations. Skyfarm tends to attract buyers who prioritize the view above all else and are comfortable with the longer commute times that come with living further west toward I-280.

Hillsborough Hills

Hillsborough Hills is one of the smaller, more intimate sub-areas of Upper Hillsborough, with homes tucked into the terrain along winding roads near the Parrott Drive corridor. The neighborhood has a hidden-away quality — you'd have difficulty finding it without knowing where you're going. Homes range broadly in age and style, with some mid-century original-condition properties alongside extensively renovated and rebuilt estates. The median sale price in this area has hovered around $5 million in recent periods, making it one of Hillsborough's more attainable entry points while still delivering the privacy and lot size the town is known for.

The Parrott Drive Area

The Parrott Drive corridor sits in the central-hillside section of Hillsborough and is named for the historic Parrott estate that once occupied the area. Homes along and around Parrott Drive are some of the most architecturally varied in town — ranging from 1920s and 1930s Spanish Colonial estates to post-war contemporaries to fully rebuilt modern homes on legacy lots. The area offers a mix of flat pad sites and hillside configurations, and properties here frequently have both privacy and Bay views, which is a combination that commands a premium.

Upper North Hillsborough

Upper North Hillsborough runs along the higher elevations near the northern edge of town, adjacent to the Crystal Springs Uplands School campus. This area is characterized by large, wooded lots with significant privacy. The school at Crystal Springs is a notable landmark — it's a highly regarded independent school whose presence on the northern edge of Hillsborough is a draw for some families, even though it's a fee-paying institution rather than part of the public district.

South Hillsborough / Lakeview Area

South Hillsborough and the Lakeview area occupy the southern reaches of the town, adjacent to the Crystal Springs Reservoir watershed open space. This is one of the quietest corners of Hillsborough — backing up to undevelopable open land, with a semi-rural character that feels remote despite being just minutes from 101 and the SFO corridor. Homes here tend to be on larger lots and are more likely to be original-condition properties with value-add potential.

Getting Around

Caltrain — Hillsborough has no Caltrain station of its own. The closest station is Burlingame, located on Burlingame Avenue at California Drive — approximately a 5–10 minute drive from most of lower Hillsborough and 15–20 minutes from upper hillside areas. Burlingame is a regular Caltrain stop (not Baby Bullet), with northbound trains reaching San Francisco in roughly 30–35 minutes and southbound to San Jose in approximately 50 minutes. Millbrae station — just north of Hillsborough — offers both Caltrain and BART connections and is slightly closer for residents in the northern part of town.

BART — No BART station in Hillsborough. Millbrae station (BART/Caltrain transfer) is the nearest BART access point, connecting directly to SFO and downtown San Francisco via the SF/Millbrae line.

Highways — I-280 runs along Hillsborough's western edge and is the primary corridor for commuters heading south toward Cupertino, Sunnyvale, and the 101 interchange at Lawrence Expressway. US-101 is accessible via several surface road connections through Burlingame and San Mateo. For South Bay commuters, I-280 is genuinely convenient from upper Hillsborough — you're practically on the on-ramp.

El Camino Real — California's historic north-south spine runs along Hillsborough's eastern border, providing access to Burlingame, San Mateo, and the broader Peninsula corridor.

San Francisco — Approximately 20 miles north. By car on I-280/I-101, expect 25–35 minutes in off-peak conditions and 45–60 minutes during rush hour. By Caltrain from Burlingame station, plan on 30–40 minutes to San Francisco 4th & King.

Schools

K–8: Hillsborough City School District — Hillsborough operates its own K–8 public school district, a rare setup on the Peninsula. The Hillsborough City School District (HCSD) runs three elementary schools — North Hillsborough, South Hillsborough, and West Hillsborough — each feeding into Crocker Middle School for grades 6–8. All four schools are well-regarded and benefit from a high per-pupil spending rate supported by the local tax base and the Hillsborough Schools Foundation, a privately funded enrichment organization that supplements district resources significantly.

Assignment to North, South, or West elementary is determined by home address within the town. All students in Hillsborough feed into the same Crocker Middle School, which serves approximately 550 students in a single campus.

High School: San Mateo Union High School District (SMUHSD) — Hillsborough does not have its own public high school. Students are assigned to Burlingame High School, Aragon High School, or San Mateo High School depending on their specific home address. All three are part of SMUHSD. Aragon and Burlingame are generally considered the two top draws in the district; San Mateo High also has strong programs. If the specific high school assignment matters to your family, verify the exact address against current SMUHSD boundary maps before writing an offer — boundaries do shift at the margins.

Private options — The Nueva School (independent PreK–12, focused on gifted learners) has its upper school campus in Hillsborough. Crystal Springs Uplands School, a well-regarded independent middle and high school, sits on the northern edge of town. Both draw students from across the Peninsula.

School assignment is address-specific and district boundaries change. If schools drive your decision, verify your exact address against the current district boundary maps before writing an offer.

Life in Hillsborough

Hillsborough does not have a downtown. That is not a flaw — it's a feature. The town has no commercial zoning by design, and residents have accepted (and in many cases chosen) a lifestyle that depends on neighboring cities for daily services. Burlingame Avenue, five minutes away, provides one of the best dining and retail corridors on the Peninsula. Broadway in Burlingame and downtown San Mateo are equally close. For residents who value quiet streets and a complete absence of through traffic, Hillsborough's residential-only character is the point.

The town maintains several parks — Vista Park and Centennial Park are notable, with Centennial Park featuring a community garden — but the real open space amenity for Hillsborough residents is the proximity to Crystal Springs Regional Trail and the San Francisco watershed lands. Miles of low-traffic trails along Crystal Springs Reservoir are accessible within a short drive from most parts of town, offering cycling and walking routes that most Peninsula cities can't match.

Hillsborough has a strong community identity organized around its schools, its neighborhood associations, and civic events tied to the town's history. It is a small enough community — roughly 11,000 people in about 6 square miles — that a significant portion of residents know each other through school connections. The community skews toward long-tenured households who've been there for decades, interspersed with newer arrivals who made intentional decisions to prioritize the school district and lot sizes over walkability.

What Homes Look Like

• Lower Hillsborough (eastern flats) — 1930s–1960s Tudor, Colonial, and Mediterranean Revival estates; 2,500–6,000+ sqft on 0.5–1+ acre lots; many extensively updated, some still in original condition
• Carolands — Grand formal estates from the 1920s–1950s; 4,000–12,000+ sqft; motor courts, guesthouses, and manicured grounds common
• Skyfarm / Hillsborough Hills — 1950s–1970s mid-century modern and ranch-style homes; 2,500–5,000 sqft; hillside lots with Bay views; irregular terrain
• Parrott Drive area — Architecturally mixed; Spanish Colonial, mid-century, and fully rebuilt contemporaries; 3,000–8,000 sqft
• Upper North / South Hillsborough — Wooded, private lots; 1950s–1980s construction; larger lots with open space adjacency; more value-add opportunity at this end of the market

Rough price tiers, April 2026 (approximate):

• Entry single-family: ~$3.5M–$5M (typically upper hillside, original condition, or smaller footprint on standard Hillsborough lot)
• Mid-tier: ~$5M–$8M (updated estate or newer construction in lower Hillsborough, solid school proximity)
• Upper tier: ~$8M–$15M+ (turnkey lower Hillsborough estates, Carolands-area properties, premium hillside with Bay views)

Tiers are approximate, derived from SAMCAR MLS data and local listing activity for April 2026. Individual properties vary widely by view, lot, condition, and block.

What to Know Before You Buy or Sell

Small sample sizes affect pricing. With only 15 homes sold in April 2026, a single outlier transaction can move the median significantly. Don't over-index on any single month's data. Hillsborough is a thin market, and individual property characteristics — view, condition, lot configuration, architectural style — matter more here than the city-level statistics suggest.

The 97% sale-to-list ratio is a negotiating signal. In a county where most cities average 105–113% of list, Hillsborough's 97% means buyers have actual leverage in many transactions. Homes here are harder to price precisely, and sellers occasionally overshoot. Working with someone who tracks actives and comps closely is essential — there's no volume-driven pricing consensus in this market.

High school assignment varies by address. Hillsborough feeds into three different San Mateo Union high schools. If your family has a strong preference for Aragon vs. Burlingame High vs. San Mateo High, run the address check before you fall in love with a property. The difference can come down to a single street.

No public transit within town. Hillsborough is entirely car-dependent. The nearest Caltrain stations are in Burlingame and Millbrae — a 5–15 minute drive depending on where in town you live. Buyers who want to commute by train need to budget for the drive-to-station leg, parking, or rideshare. Employer shuttles from Caltrain stations serve some of the major tech employers on the Peninsula and can be a viable option.

Hillside properties carry geology and drainage considerations. Upper Hillsborough and Skyfarm-area homes are built on hillside terrain. Review the soils and geology reports carefully, particularly for lots with significant slope. Retaining walls, drainage systems, and seismic anchoring details are worth scrutinizing in any pre-sale disclosure review.

No HOAs, but strict design review. Hillsborough has no homeowners associations, but the town operates a formal design review and permitting process that governs exterior modifications, new construction, and significant landscaping changes. If you're planning a major remodel or rebuild, budget for the town review process — it moves at its own pace.

Wildfire risk is moderate but real. The hillside portions of Hillsborough, particularly areas adjacent to open space, carry elevated fire risk designations. Review the CAL FIRE FHSZ maps and check insurance availability and cost before closing on any upper-hillside property.

Lot sizes and privacy vary more than you'd expect. While Hillsborough's average lot is nearly 31,000 square feet (about 0.7 acres), there's significant variation. Some lower Hillsborough parcels are closer to 10,000–15,000 square feet and feel less private than the town's reputation implies. If lot depth and privacy from neighbors matters, look at the actual survey, not just the neighborhood name.

Frequently Asked Questions

What is the median home price in Hillsborough, CA? As of April 2026, the median sale price for a single-family home in Hillsborough is $8,000,000, with an average sale price of $8,935,666. Source: SAMCAR / MLSListings, April 2026. These figures cover only single-family residential properties — the only housing type in Hillsborough.

Is Hillsborough a buyer's or seller's market right now? It's a lightly constrained seller's market — 1.8 months of supply and 16 average days on market both point to limited inventory. But unlike most Peninsula cities, Hillsborough's sale-to-list ratio is 97%, meaning buyers aren't consistently bidding over asking. In practice, this is a market where well-priced properties sell with real competition, but overpriced estates sit. Knowing the difference requires deep familiarity with recent comps.

What neighborhoods are in Hillsborough, CA? Hillsborough's primary areas include Lower Hillsborough (the flatter eastern section, closest to Burlingame), Carolands (grand formal estates, historic character), Skyfarm (hillside with Bay views), Hillsborough Hills (tucked-away upper hillside), the Parrott Drive area (architecturally mixed, central hillside), Upper North Hillsborough (wooded, near Crystal Springs Uplands School), and South Hillsborough/Lakeview (quiet, open-space adjacent).

What public schools serve Hillsborough? Hillsborough has its own K–8 district — the Hillsborough City School District — with three elementary schools (North, South, and West) and Crocker Middle School. High school students attend Burlingame High, Aragon High, or San Mateo High through the San Mateo Union High School District, with assignment determined by home address.

Does Hillsborough have Caltrain access? Hillsborough has no Caltrain station of its own. The nearest stations are Burlingame (a regular stop, approximately 5–10 minutes by car from lower Hillsborough) and Millbrae (BART/Caltrain transfer, slightly further north). Most Hillsborough residents drive to station, use rideshare, or take employer shuttles. The town is car-dependent — factor that into your daily commute calculation before buying.

Work With Burt on Your Hillsborough Home

Hillsborough's ultra-luxury market operates differently from the rest of San Mateo County — thin volume, wide price variance, and a sale-to-list ratio that rewards buyers who know where the real value is and sellers who price with precision from day one. Whether you're coming from outside the Peninsula and need to understand how Hillsborough stacks up against Atherton or Woodside, navigating the high school assignment question before you write an offer, or trying to maximize what your estate is worth in a market where only 15 homes trade hands in a given month — that's the work Burt does every day.

Call or text Burt Tsuei: 650-274-3598

Burt Tsuei | Team Lead, Burt Tsuei Real Estate Group | Keller Williams Peninsula Estates | DRE# 01906450 | 650-274-3598