An Alpharetta homeowner can determine this with a four step test that uses public records and the same arithmetic builders use. Compare the lot, on its recorded dimensions, with the 30009 sample minimum of 15,681.6 square feet; collect the prices of new construction near the street, which have run from 900,000 dollars to 1,600,000 dollars; run the residual illustration that leaves 420,000 to 470,000 dollars for land on a 1,100,000 dollar example; and set that land figure against a realistic net from selling the house to a household (Frontier Capitals, 2026) (Redfin, 2026). If the land figure is higher, the property is worth more as land, whatever the house on it looks like.
The test matters because the default valuation tools point the other way. Estimates and list price comparisons value the house, while the sample for this ZIP code shows builders acquiring 13 of 20 older homes and the average older home trading at 25.4 percent of a comparable new build price, a clear sign that the land is doing the pricing on most parcels (Frontier Capitals, 2026). Owners who never run the land test routinely accept household valuations for properties the market is pricing as sites.
Each step below uses evidence an owner can gather without listing the house, hiring anyone or spending on renovation. The steps build on one another, and together they produce a defensible answer rather than an impression.
Key Findings
- The land test has four steps: parcel dimensions from county records, new build prices on nearby streets, a residual calculation, and a net household comparison (Fulton County Board of Assessors, 2026) (Frontier Capitals, 2026).
- The sample benchmark for lot size is a minimum of 15,681.6 square feet, roughly a third of an acre, and lots at or above that scale fit the replacement profile builders buy (Frontier Capitals, 2026).
- The residual illustration leaves 420,000 to 470,000 dollars for land on a 1,100,000 dollar new build sale, before site preparation, giving owners a concrete figure to compare against (Frontier Capitals, 2026).
- The household comparison must use net proceeds: a 450,000 dollar listed sale nets in the high 300,000s after commissions, closing costs, repair credits and carrying costs (Frontier Capitals, 2026).
- Builders acquired 65.0 percent of sampled older homes, so a positive land test is the common result in 30009, not an unusual one (Frontier Capitals, 2026).
What is the first step, establishing the parcel facts?
Begin with the county parcel record, because every later step depends on it. The record gives the legal dimensions of the lot, its zoning and its assessed land value, the three facts from which a builder derives what can be built and what the land is assessed to be worth (Fulton County Board of Assessors, 2026). Measure the lot against the sample minimum of 15,681.6 square feet and against the typical parcel on the same street, since a lot large for its street carries more weight than the same lot on a street of larger parcels.
Note the qualifiers as carefully as the dimensions. Shape, slope, frontage and access all grade what the dimensions promise, and parcel and permit records document the constraints and the history of building on and around the lot (Fulton County, 2026). Some parcels support possibilities beyond one replacement house, such as a guest house or a division, where dimensions and zoning allow, and those possibilities belong in the parcel file from the start (Fulton County Board of Assessors, 2026).
An owner who completes this step owns the same fact base a builder will use. That alone changes the quality of every conversation that follows, because offers can then be discussed in terms of recorded facts instead of impressions formed at the kerb.
What is the second step, collecting the new build evidence?
The land value of a parcel is a function of what will sell on it, so the second step is to price the future house from evidence. Sold new construction on standard lots in 30009 has ranged from 900,000 dollars to 1,600,000 dollars, varying with subdivision, schools and lot size (Redfin, 2026). The owner task is narrower and more useful than the ZIP range: find the newest completed sales on the closest comparable streets and note the prices, the lot sizes they sit on and how long they took to sell.
Those street level prices do the work that ZIP medians cannot. Established North Fulton streets carry premiums that appear in new build comparisons but rarely in older home listings, and market summaries for the area describe the school and employment drivers behind those premiums, including the GA-400 base that keeps the end buyer pool durable (Atlanta Realtors Association, 2025). Census profile material for the city supplies the background picture of an established residential market in the Atlanta metro within which those prices form (U.S. Census Bureau, 2025).
Valuation data for the older homes on the same streets completes the step, because it shows the current house side of the gap in published form (Zillow, 2026). Owners can place the two series side by side in the format used by What Are Comparable Homes Selling for in Alpharetta? and see the land share of their street with their own eyes.
What is the third step, running the residual honestly?
With a street level future price in hand, run the residual the way the sample illustration runs it. Take the new build sale figure, subtract construction costs of roughly 460,000 dollars at the scale of the 1,100,000 dollar example, subtract a builder margin near 20 percent, and read the remainder as the land budget, 420,000 to 470,000 dollars on that example, before site preparation (Frontier Capitals, 2026). Then subtract a realistic site preparation allowance for the specific parcel, informed by its slope, access and clearing needs as documented in the parcel and permit records (Fulton County, 2026).
Run the calculation at two or three future prices, not one. At the conservative street price the result is a floor, at the strongest comparable sale it is a ceiling, and the band between them is the honest land value range for negotiation. Owners who fix on a single optimistic figure repeat, in reverse, the error of owners who fix on a single household estimate. The method, repeated at several inputs, is what makes the answer trustworthy.
The worked example in the sample shows why the test so often comes out positive. A new build at 1,100,000 dollars standing a few streets from an older home that changed hands near 279,000 dollars leaves an 821,000 dollar gap, and that gap is mostly land and new structure value rather than anything about the older rooms (Frontier Capitals, 2026). A full walk through of the lot pricing method is available in How Much Is a Residential Lot Worth in Alpharetta?.
What is the fourth step, pricing the household alternative net?
The final step prevents the most common error in this decision, comparing a land figure with a list price. Price the household route the way it will actually settle. Start with a realistic contract price for the house in its current condition, informed by valuation data and by sales of similar unrenovated homes rather than renovated ones (Zillow, 2026). Then subtract commission at the typical 5 to 6 percent, which is 22,500 to 27,000 dollars on a 450,000 dollar sale (National Association of Realtors, 2025). Subtract seller closing costs of 1 to 2 percent, completing the combined 6 to 8 percent, or 27,000 to 36,000 dollars (Frontier Capitals, 2026). Subtract a realistic inspection credit, which on 45-year-old houses routinely runs 10,000 to 30,000 dollars, and carrying costs of 12,000 to 24,000 dollars over the three to six months the listed route commonly takes for older homes, against the 60 to 120-plus day timeline Georgia data records for that route (Frontier Capitals, 2026) (Georgia Association of Realtors, 2025).
The result is the true household figure, and for the sample 450,000 dollar case it lands in the high 300,000s (Frontier Capitals, 2026). Set it beside the land band from step three. If the land band sits above it, the property is worth more as land, and the owner should negotiate it as land, with competing builder bids collected on identical lot data. If the household figure sits clearly above the land band, as it can for a renovated home in a school driven location, the property is worth more as a house, and the owner should list it with confidence. Either result is valuable, because either replaces a guess with a measured answer.
What does a positive land test change about how the owner sells?
A positive test changes the audience, the preparation and the terms. The audience becomes builders rather than households, reached off-market. Preparation becomes documentary, the parcel file and the street evidence assembled in steps one and two, rather than cosmetic, since spending on the house returns nothing with a redevelopment buyer; the 80,000 dollar update in the data returns 55,000 to 70,000 dollars with a live-in buyer and 0 dollars with a builder (Frontier Capitals, 2026). The terms become the five that run through this research: privacy with zero showings and zero open houses, the sale private until the deed records (Fulton County Clerk of Superior Court, 2026); flexible closing in 7 to 21 days or months out with a leaseback (Georgia Association of Realtors, 2025); no commissions (National Association of Realtors, 2025); no seller closing costs (Frontier Capitals, 2026); and no inspections or repairs, the home sold as it stands.
Verification belongs in the selling plan as well. Any builder bid relied on should come with proof of funds in the buyer name dated within the last 30 days, a record of closed purchases in the deed records, a contract in the closing name with no assignment clause, and an earnest money deposit of typically 1 percent or more (Fulton County Clerk of Superior Court, 2026). Frontier Capitals sources off-market deals to builders and does not present itself as a builder, and the four steps above are written so that an owner can reach the land answer with or without any intermediary involved. Owners who want the four steps run on their property, with the records pulled and the band calculated, can call 401-219-4207 or email [email protected]. The related question of what the resulting bid should be is answered in How Much Will a Builder Pay for an Older House in Alpharetta?.
What are the common mistakes owners make with this test?
The first mistake is skipping step one and estimating lot size from memory or from a fence line, when the recorded dimension is the figure every buyer will use (Fulton County Board of Assessors, 2026). The second is using the strongest new build sale in the ZIP code as the future price for a modest street, rather than the sales on comparable streets nearby (Redfin, 2026). The third is forgetting site preparation, and quoting the residual band as if it were a net land price. The fourth, and most expensive, is comparing the land band with a hopeful list price instead of with the net household figure from step four.
A fifth mistake is treating a negative test as permanent. Streets change as replacement building proceeds, and a parcel that tests negative today can test positive after two strong new build sales complete nearby, because step two feeds directly into step three (Redfin, 2026) (Fulton County, 2026). Owners in areas where building is arriving should rerun the test when the street evidence changes, which the public records make it cheap to do. The classification framework behind the test is also summarised in What Is the Difference Between a Alpharetta Home’s Market Value and Land Value?.
Methodology and limitations
This test is built from the sample compiled for this report, 20 older homes in 30009 with 13 builder acquisitions, the lot benchmark of 15,681.6 square feet, the residual illustration on a 1,100,000 dollar example and the cost ledger on a 450,000 dollar listed sale (Frontier Capitals, 2026). A sample is not a census, and the illustration is a simplified method, labelled as such wherever it is used, not a valuation of any individual property. No source in the data publishes a maximum builder price or a lot price table beyond that illustration, so the test answers by method from parcel records and street comparisons (Fulton County Board of Assessors, 2026) (Fulton County, 2026). Its results are bands, not points, and a specific sale should be negotiated inside the band the records support.
Conclusion
Determining whether an Alpharetta property is worth more as land is a records exercise, not a matter of opinion: measure the parcel, price the future house from nearby sales, run the residual, and compare it with the net of a household sale rather than with a list price. In 30009 that exercise comes out in favour of the land for most unrenovated homes on full lots, which is exactly what the acquisition record, 13 builder purchases in 20 sampled sales, has been saying all along. Owners who run the test know which market they own in, and that knowledge is worth money in either direction. Before you set a price for your house, will you run the four steps and find out what the ground beneath it is worth on its own?
Frequently Asked Questions
What is the quickest first check an owner can make?
Compare the recorded lot size with the 30009 sample minimum of 15,681.6 square feet and look at whether new builds have sold on nearby streets in the 900,000 to 1,600,000 dollar range (Fulton County Board of Assessors, 2026) (Redfin, 2026). A large lot on a street with proven new build prices will almost always repay the full four step test.
Why should the household side be compared net instead of by list price?
Because the deductions are large and predictable: commission at 5 to 6 percent, seller closing costs, inspection credits of 10,000 to 30,000 dollars and months of carrying costs turn a 450,000 dollar list price into a net in the high 300,000s in the sample ledger (National Association of Realtors, 2025) (Frontier Capitals, 2026). Comparing gross with net systematically overstates the household route.
Does a renovated house ever pass the land test?
Yes, occasionally, where the lot is exceptional and the street prices are at the very top of the local range, the land band can exceed even a strong renovated value (Redfin, 2026). The renovation itself adds nothing for the builder, since the data shows an 80,000 dollar update returning 0 dollars with a redevelopment buyer (Frontier Capitals, 2026). The lot, not the renovation, decides the test in those cases.
How often should an owner rerun the test?
Whenever the street evidence changes materially, in particular after new build sales complete nearby or after a neighbouring parcel trades to a builder, both of which are visible in public sales and deed records (Redfin, 2026) (Fulton County Clerk of Superior Court, 2026). The test is cheap to rerun and the answer genuinely moves with the evidence.
Who can help an owner run the test on a specific property?
An owner can run it alone from county records and published sales, and should expect any buyer or intermediary to show the same working. Frontier Capitals runs the test as part of sourcing off-market deals to builders, and owners can request it by calling 401-219-4207 or emailing [email protected], with the timeline context for the listed alternative drawn from Georgia market data (Georgia Association of Realtors, 2025).
Sources
- Frontier Capitals, 2026. 189 neighborhood builder acquisition sample: 20 homes sampled in 30009, 13 acquired by builders, average older home price 25.4 percent of new build. Market data.
- Fulton County, 2026. Parcel and permit records, Alpharetta GA. Official record.
- Redfin, 2026. Recently sold homes and new construction, ZIP code 30009, Alpharetta GA. Market data.
- Zillow, 2026. Home values and recently sold, 30009. Market data.
- Fulton County Board of Assessors, 2026. Parcel dimensions, zoning, and assessed land value records for 30009. Official record.
- Fulton County Clerk of Superior Court, 2026. Recorded deed and transfer records, public access. Official record.
- National Association of Realtors, 2025. Typical seller commission structures, Atlanta-North Fulton market. Industry report.
- Atlanta Realtors Association, 2025. North Fulton market summaries. Industry report.
- Georgia Association of Realtors, 2025. Market data on days on market and closing timelines, Atlanta metro. Industry report.
- U.S. Census Bureau, 2025. QuickFacts: Alpharetta city, Georgia. Government data.