James Valdez specializes in retrospective appraisals for probate, estate settlement, trust administration, step-up basis, and IRS reporting.
A Date of Death appraisal is a type of retrospective appraisal that determines the fair market value of real estate as of a prior effective date, most commonly the date of death of a property owner. These appraisals are often needed for probate proceedings, estate settlement, trust administration, IRS reporting, and stepped-up basis documentation.
San Mateo County is one of the most varied residential appraisal markets in the Bay Area. The county includes high-value Peninsula neighborhoods, dense San Francisco-adjacent housing, coastal communities, hillside and view properties, planned waterfront markets, older suburban neighborhoods, condominium and townhome segments, and areas influenced by Silicon Valley employment.
Many San Mateo County assignments involve properties with long ownership histories and location-sensitive buyer pools. Retrospective appraisal assignments often require reconstructing historical market conditions, researching comparable sales from the appropriate time period, and explaining the reasoning behind value adjustments in a clear and defensible manner.
Because these assignments require determining value as of a historical date, the analysis must reconstruct the market as it existed at the time of the date of death. My work emphasizes comparable sales research, paired sales analysis, neighborhood-specific buyer behavior, and market-supported reasoning rather than broad assumptions.
San Mateo County should not be treated as one uniform residential market. A property in Daly City, Burlingame, Menlo Park, Half Moon Bay, Pacifica, Foster City, Redwood City, or San Mateo may compete with very different buyer pools.
School districts, commute access, BART and Caltrain proximity, freeway and airport influence, hillside orientation, coastal location, waterfront exposure, neighborhood identity, lot utility, and attached versus detached property type can all affect value.
This is especially important in retrospective appraisal work. The correct comparable sale is not always the closest sale, and the newest sale is not always the best sale. The appraiser must determine whether the comparable sale reflects the subject’s actual market segment as of the effective date.
Date of Death and retrospective appraisal services are provided throughout San Mateo County including the following communities:
Estate valuation reports for settlement, trust administration, and inheritance matters are available by county: Alameda County estate valuation, Contra Costa County estate valuation, San Mateo County estate valuation, and Santa Clara County estate valuation.
You can also visit the main Bay Area Date of Death appraisal page for additional coverage throughout Alameda County, Contra Costa County, Santa Clara County, San Mateo County, and surrounding California markets.
Residential MLS sales activity across San Mateo County varies significantly by city. The table below summarizes median and average sold prices over the past 12 months for cities with active market data.
| City | Median Sale Price | Average Sale Price | Median DOM | Closed Sales |
|---|---|---|---|---|
| Belmont | $2,250,000 | $2,328,791 | 11 | 179 |
| Brisbane | $1,232,500 | $1,367,211 | 20 | 38 |
| Burlingame | $2,850,000 | $2,875,820 | 10 | 234 |
| Daly City | $1,170,000 | $1,115,607 | 15 | 429 |
| East Palo Alto | $1,053,500 | $1,081,668 | 20 | 84 |
| Foster City | $1,475,000 | $1,599,684 | 14 | 216 |
| Half Moon Bay | $1,534,500 | $1,674,952 | 24 | 118 |
| Menlo Park | $2,900,000 | $3,485,965 | 10 | 371 |
| Millbrae | $1,974,000 | $1,924,738 | 11 | 152 |
| Pacifica | $1,295,000 | $1,397,952 | 13 | 267 |
| Redwood City | $2,067,500 | $2,203,823 | 12 | 582 |
| San Bruno | $1,262,500 | $1,188,059 | 14 | 238 |
| San Carlos | $2,440,000 | $2,463,423 | 11 | 329 |
| San Mateo | $1,710,000 | $1,851,616 | 12 | 818 |
| South San Francisco | $1,245,000 | $1,203,555 | 13 | 291 |
These figures reflect recent MLS closed sales and are useful for market context. A Date of Death appraisal determines value as of a prior effective date and requires historical market evidence from the relevant time period, not current market statistics alone.
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Daly City, Brisbane, South San Francisco, and San Bruno are influenced by San Francisco proximity, BART access, freeway corridors, airport influence, hillside locations, older housing stock, dense residential development, and commuter demand.
These markets can involve important valuation issues such as parking utility, legal and functional additions, airport or freeway exposure, view influence, hillside access, attached versus detached property type, and whether a sale reflects the same buyer pool as the subject property.
In retrospective appraisal work, it is especially important to understand whether the subject property competed as a San Francisco-adjacent commuter property, a local neighborhood home, an attached housing unit, or a hillside/view-oriented property as of the date of death.
The central Peninsula includes some of the most location-sensitive residential markets in San Mateo County. San Mateo, Burlingame, Millbrae, Belmont, San Carlos, and Foster City can differ significantly by neighborhood identity, school appeal, views, lot utility, downtown proximity, transit access, and property type.
Burlingame and San Carlos often require close attention to neighborhood identity, remodeling quality, school appeal, lot size, and downtown or hillside influence. Belmont and Millbrae frequently require analysis of views, slope, elevation, access, school appeal, and freeway or airport influence.
Foster City has its own valuation issues because waterfront orientation, lagoon exposure, HOA amenities, condominium or townhome project appeal, and attached versus detached ownership can create meaningful differences in value.
Redwood City, Menlo Park, and East Palo Alto are close geographically, but they do not always compete in the same market segment. These cities include older single-family homes, high-value residential neighborhoods, condominium and townhome projects, redevelopment pressure, school-driven demand, and major Silicon Valley employment influence.
Menlo Park can be highly segmented by neighborhood identity, school district, lot size, condition, and proximity to Palo Alto, Stanford, and major employment centers. Redwood City is a large and diverse market where values can change substantially between neighborhoods, property types, and school influence areas.
East Palo Alto requires careful comparable selection because nearby higher-priced markets may influence demand, but the analysis still needs to reflect the subject property’s actual competitive market segment.
Pacifica and Half Moon Bay include a different set of appraisal issues than the core Peninsula cities. These coastal markets can involve beach proximity, ocean or hillside views, fog influence, Highway 1 access, rural or semi-rural settings, limited comparable sales, custom homes, and properties affected by coastal or land-use influences.
In Pacifica, neighborhood location, view quality, slope, access, condition, and proximity to the coast can materially affect value. In Half Moon Bay, market reaction may vary by coastal location, lot utility, rural surroundings, agricultural influence, custom home quality, and whether the property competes with local buyers, lifestyle buyers, or Peninsula commuters.
A Date of Death appraisal in coastal San Mateo County should not rely only on broad countywide trends. The analysis should reflect the subject’s specific coastal market segment and how buyers viewed that segment as of the effective date.
San Mateo County contains many features that require more than broad percentage adjustments. School district sensitivity, freeway adjacency, airport influence, BART or Caltrain proximity, coastal influence, hillside utility, view quality, waterfront orientation, attached versus detached housing, lot size, and luxury buyer expectations can all affect value differently depending on the market segment.
Paired sales analysis helps isolate how buyers reacted to those differences. Instead of assuming a feature is positive or negative, the analysis looks for market evidence showing whether buyers recognized a measurable difference. This is particularly important in retrospective appraisal work because the appraiser must reconstruct how the market behaved as of a prior date.
A credible retrospective appraisal should explain the relationship between the subject property and the comparable sales. In San Mateo County, that relationship may depend on school district, commute access, rail corridors, airport exposure, coastal setting, hillside location, city boundaries, neighborhood identity, property type, or whether the property is located in a standard residential, luxury, coastal, waterfront, or attached-housing segment.
A Date of Death appraisal is a type of retrospective appraisal. The value conclusion is developed as of a prior effective date rather than the current date. This requires analyzing comparable sales, market conditions, and buyer behavior from the relevant historical period.
These reports are commonly used by heirs, trustees, executors, probate attorneys, CPAs, and estate representatives to support estate settlement, trust administration, probate proceedings, and stepped-up basis documentation. Because these values may be relied upon for tax or legal purposes, the analysis should be clear, well-supported, and defensible.
Date of Death appraisals in San Mateo County are commonly needed by heirs, trustees, executors, probate attorneys, CPAs, and estate representatives when a property owner has passed away and the value of the real estate must be established as of the date of death.
A properly researched San Mateo County estate appraisal or probate appraisal helps support estate settlement, IRS reporting, trust administration, and probate proceedings through a well-supported retrospective opinion of value based on market evidence from the relevant time period.