Episode 2 · Property Types & Supply Dynamics
Keystone Point Homes: Size, Age, Lots and Ownership
Keystone Point is a community of detached houses on their own lots, mostly built in the same decade. This page shows what stands there, how big the houses and lots are, who holds them, and what the county's assessed values can and cannot tell you about the houses.
💡 Key Insights & Takeaways
- Keystone Point has 831 single-family houses among its 871 parcels, and the median lot is 9,566 square feet.
- The median house was built in 1957, and 70.8% of the houses date from the 1950s. The county notes a later effective year on 53.3% of them, a signal of recorded change and not a count of renovations.
- On identical 9,375 square foot lots, the county's median just value is $1,024,960 at a land rate under $100 per lot square foot and $2,222,473 at $185 to $249. These are estimates, not sale prices.
- The median owner has held a house for 8.1 years, but the county's ownership dates end on 13 January 2026, so every holding time is understated by about 9.0 months.
- The redevelopment screen flags 17.3% of single-family parcels as strong candidates, an upper bound, and 63.2% of the 38 vacant parcels list a corporate or LLC owner.
As of 15 October 2026, a Keystone Point house with a homestead exemption, a tax break for an owner's home, is assessed at 32.0% of its just value, and one without it at 86.0%. Just value is the county's estimate before exemptions, not a sale price. The gap comes from the Save Our Homes cap, not the houses.
At a glance
Table: Keystone Point at a glance, as of 15 October 2026.
| Measure | Value | Covers |
|---|---|---|
| Single-family houses | 831 of 871 parcels | All parcels, as of 15 October 2026 |
| Median lot | 9,566 square feet | 831 houses, as of 15 October 2026 |
| Median year built | 1957 | 831 houses, as of 15 October 2026 |
| Assessed share of just value, with and without a homestead exemption | 32.0% and 86.0% | 647 and 184 houses, as of 15 October 2026 |
| Median time held by an owner | 8.1 years | 828 parcels, ownership dates end 13 January 2026 |
What kind of homes are in Keystone Point, and how big are they?
Keystone Point is almost all detached houses. As of 15 October 2026, 831 of its 871 parcels are single-family houses, which is 95.4% of the total. The rest are 38 vacant lots (4.4%) and 2 multi-family parcels (0.2%), and none is a condominium. A parcel is one piece of land on the county's list, so 871 counts parcels, not homes or households.
Table 1. Keystone Point parcels by type, as of 15 October 2026 (n = 871 parcels).
| Parcel type | Parcels | Share of the 871 parcels |
|---|---|---|
| Single-family house | 831 | 95.4% |
| Vacant land | 38 | 4.4% |
| Multi-family | 2 | 0.2% |
| Condominium | 0 | None |
The median house has 2,402 square feet of living area on a lot of 9,566 square feet (n = 831 houses), and 13.4% of the houses have 4,000 square feet or more. The living area is the county's recorded figure. It differs by more than 20% from the size in a for-sale listing on more than half of the houses that can be compared, so a listing may show a different size. Built floor area is about a quarter of the lot, a median floor-area ratio of 0.24, which is living area divided by lot area.
The median house has 3 bedrooms and 2 bathrooms. 49.2% of the houses have three or more bathrooms, and 6.5% have one.
How old are the houses, and how many show recorded change?
The median Keystone Point house was built in 1957. As of 15 October 2026, 70.8% of the 831 houses date from the 1950s, 1.1% were built before 1950 and 11.3% after 2000, so most houses share one decade.
The county also records change. 53.3% of the houses carry an effective year later than their year built, and the median gap among those houses is 27 years (n = 443). The median effective year is 1976. The effective year is the county's own estimate, and a later effective year means the county recorded a change to the house. The gap moves in steps of five years, so the 53.3% shows that a change was recorded. It is not a count of permitted renovations.
Does the lot or the land rate sort value in Keystone Point?
The land under a Keystone Point house carries most of its value. As of 15 October 2026, the median land share of just value is 82.7%, and 85.8% of the houses have land above 70% of just value (n = 831). Just value is the county's estimate before exemptions. It is not a sale price or what a house would sell for.
Lot size does not explain that land value. The land rate does. The land rate is the county's land value per square foot of lot. Its median is $190, and 26.2% of the houses sit under $100 per square foot.
The clearest test is the identical lots. 29.1% of the houses sit on the same 9,375 square foot lot. On those lots the median just value is $1,024,960 at a land rate under $100 per lot square foot (n = 37) and $2,222,473 at $185 to $249 (n = 201), a factor of 2.17. Table 2 shows the same split across all the houses.
Table 2. Median just value by the county's land rate per lot square foot, as of 15 October 2026.
| Houses compared | Land rate per lot square foot | Houses | Median just value |
|---|---|---|---|
| Identical 9,375 square foot lots | Under $100 | 37 | $1,024,960 |
| Identical 9,375 square foot lots | $185 to $249 | 201 | $2,222,473 |
| All houses | Under $100 | 218 | $1,098,043 |
| All houses | $185 to $249 | 511 | $2,327,729 |
The land rate is a band of the county's land values. It is not a measure of water frontage or location, because the county's data has no field that says why a lot sits in a band, and this page does not say why. So comparing two houses by lot size alone mixes houses from different bands.
Why does a neighbor's assessed value tell you so little?
A neighbor's assessment mostly shows when and how the neighbor bought, not what the house is like. Assessed value is the county's estimate after exemptions and the cap, and just value is its figure before them. As of 15 October 2026, the median house has an assessed value of $898,729 and a just value of $2,206,707 (n = 831). The median house is assessed at 44.8% of its just value, and neither value is market value.
The Save Our Homes cap limits a homesteaded house's yearly rise in assessed value to the lesser of 3% or the change in consumer prices, and the cap resets when the house changes hands in a qualifying transfer. Table 3 shows what that does.
Table 3. Assessed and just value by homestead exemption, single-family houses, as of 15 October 2026.
| Group | Houses | Median assessed value | Median just value | Median assessed share of just value |
|---|---|---|---|---|
| With a homestead exemption | 647 | $681,874 | $2,214,995 | 32.0% |
| Without a homestead exemption | 184 | $1,603,580 | $2,177,512 | 86.0% |
The two groups have almost the same median just value, so the gap comes from the cap and the exemption, not from the houses.
The cap builds over time, so the longer an owner holds, the wider the gap. Table 4 compares each house's assessed value with the last recorded sale amount, by the decade of that sale.
Table 4. Median assessed value as a multiple of the last qualified sale amount, by decade of that sale, as of 15 October 2026.
| Decade of last qualified sale | Median multiple | Houses |
|---|---|---|
| 1970s | 4.13 times (small sample) | 7 |
| 1980s | 2.50 times | 19 |
| 1990s | 1.62 times | 56 |
| 2000s | 1.21 times | 69 |
| 2010s | 1.01 times | 156 |
| 2020s | 0.87 times | 189 |
The table uses sales the county codes as qualified, with a recorded amount of $10,000 or more, which covers 496 of the 831 houses, and the median across them is 1.05 times. It is a record-based ratio. It is not appreciation, and it does not compare to a current price.
This page shows no property tax bills, because the county data behind it carries no tax amounts. An assessed value is not the bill an owner pays.
Who owns the Keystone Point houses, and for how long?
77.9% of the 831 houses carry a homestead exemption, which is 647 houses and the closest the data comes to counting owners who live in the house. As of 15 October 2026, the median owner has held a house for 8.1 years (n = 828 houses with an ownership date), and 41.9% have held for more than 10 years. Owners with a homestead exemption have held a median 9.4 years (n = 644), against 5.2 years for owners without one (n = 184).
The county's ownership dates end on 13 January 2026, which is 9.0 months before 15 October 2026. Every holding time on this page is understated by about that gap. No transfer after 13 January 2026 is on file, so the window since 30 June 2026 is empty by construction, and an empty window does not mean nobody sold.
The county lists a trust or a company as owner on 24.4% of the houses: 13.8% are trusts and 10.7% are corporate or LLC owners. Trusts are an estate-planning tool common among long-time owners who live in the house, so this page reports them apart from company owners. The corporate or LLC share is the closer count of company ownership.
How many Keystone Point lots show signs of redevelopment?
The county's data lets you screen for houses that may be replaced. The screen scores how much of a parcel's value sits in the land, how little in the house, how small the house is against the lot, and whether the county recorded a change. As of 15 October 2026, it flags 144 houses, or 17.3% of the single-family parcels, as strong candidates and 15.9% as moderate (n = 831).
Because 17.3% is above the 15% line this screen uses to flag a score as too loose, read it as an upper bound. Most Keystone Point houses were built in the 1950s, so a screen over such alike houses will flag many. It is not a count of houses ready for redevelopment.
Vacant land shows the clearer pattern. 38 parcels are vacant, and 63.2% of them list a corporate or LLC owner, against 10.7% of the single-family parcels. The median hold on vacant land is 2.5 years (n = 38), and the county's ownership dates end on 13 January 2026. The data shows who owns the lots, not why.
Common questions
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