Peachtree City Decks by the Numbers: Climate, Code, Trees and Housing

Last reviewed 2026-07-25. Journalists, researchers, and community groups are welcome to cite any figure on this page with attribution and a link.

Almost every claim worth making about deck building in Fayette County rests on something published and checkable: how the weather behaves at the nearest long-run climate station, which code edition Georgia currently enforces, what the Peachtree City tree ordinance measures, and what the Census says about the housing stock. This page collects those figures with a source for each one. Nothing here is estimated, interpolated or recalled. Where the public record does not answer a question people commonly ask, the last section says so rather than filling the gap with something plausible.

One station note, because it causes confusion. The long-run climate record used below is listed as ATLANTA, GA in the National Centers for Environmental Information comparative climatic data tables, station 13874 or USW00013874 - Hartsfield-Jackson, roughly 20 miles north of Peachtree City. There is no comparable century-scale record published under Peachtree City's name. Which is a little ironic, because the National Weather Service forecast office that covers this part of Georgia is physically located in Peachtree City, at 4 Falcon Drive. Two periods of record appear below: the normals columns cover 1991 through 2020, while the day-count and humidity tables cover longer periods running from 1930 and 1945 respectively through 2023 and 2018.

How wet and how hot does a deck here actually get?

The figures that matter for outdoor wood are rainfall frequency, heat, and humidity, and all three are published. The Atlanta station records a normal annual precipitation of 50.43 inches spread across 115 days a year with 0.01 inch or more. Normal daily maximum temperature peaks at 90.1 degrees in July, and the station averages 44 days a year at 90 or above. Average relative humidity across the year is 81 percent in the morning and 55 percent in the afternoon, and in July and August the morning figures reach 86 and 87 percent. That is a wetting and drying cycle running most of the year, which is what drives dimensional movement in wood decking and what makes an annual wash necessary on composite.

Cold is a minor factor here compared with a northern climate but it is not zero. The station records 42 days a year with a minimum temperature at or below 32 degrees, concentrated in December, January and February. That is enough to matter for footing depth - Georgia's prescriptive deck details put the bottom of a footing at least 12 inches below grade - and it is nowhere near enough to drive the kind of freeze-thaw damage that dominates pavement and concrete work further north. In Fayette County the enemy is water and ultraviolet, not frost.

What the Peachtree City tree ordinance actually measures

The city's tree rules are keyed to diameter at breast height and to whether a tree is understory, canopy or specimen. A removal permit is required for understory trees at 8 inches DBH or greater and canopy trees at 18 inches or greater, with Bradford pears counted as canopy rather than understory. Specimen classifications are stricter: understory trees at 8 inches and above excluding Bradford pears, hardwoods at 20 inches and above, and softwoods and sweetgums at 24 inches and above. A specimen tree may be removed only where it is dead, dying or diseased, where it is an immediate hazard to human safety or property, where it sits inside a construction area approved by a building permit, or where the owner contributes to the city's Tree Fund at $20 per caliper inch DBH.

Two further rules shape a deck design. Every lot must retain at least two trees, and where all trees are removed at least two must be replanted. Trees within city greenbelts and environmental protection areas cannot be removed at all, and the council in 2017 set a penalty for illegal greenbelt removal of not less than $500 per tree together with responsibility for replacing the total caliper inches taken. Pruning, limbing and raising need no permit as long as the tree survives the work. The application itself asks for a tree list with species and measurements, a property schematic showing locations, photographs of each tree with the measurement visible, an arborist assessment where health is in question, owner and contractor signatures, HOA authorization where applicable, and proof of the contractor's liability insurance, workers' compensation and occupational tax certificate.

Which code book your deck is inspected against

Georgia's mandatory residential code is the 2024 International Residential Code carrying the 2026 Georgia Amendments, published by the Department of Community Affairs. Deck provisions live in Section R507, and the 2026 amendment packet, effective January 1, 2026, revised R507.9.1.3 to specify the ledger predrill in exact terms: a half-inch hole drilled through the ledger and the sheathing where present, and a five-sixteenths to three-eighths inch hole through the band joist. The same packet revised the figures for ledger-to-band-joist attachment with and without cladding and added a corner beam over post illustration to the R507.5.2 figure set.

Alongside the code, DCA publishes the Georgia Prescriptive Deck Details, which is the document most plan reviewers in this region work from. It sets design loads at 40 pounds per square foot live and 10 pounds dead for southern pine No. 2 under wet service conditions, puts the bottom of a footing at least 12 inches below grade, standardizes on 6x6 posts up to 14 feet from the top of the footing to the underside of the beam, allows 4x4 posts for stair landings at or below 7 feet, requires guard openings that will not pass a 4-inch sphere, and requires continuous flashing with a drip edge over any ledger connected to a wood band board. Fayette County's own residential deck guide adds local submittal detail on top of that, and it is the clearest statement of what an inspector in this county will look at.

What the housing stock looks like on paper

Peachtree City and Fayette County are both older, wealthier and more owner-occupied than the Georgia average, which is the demographic profile that produces a lot of deck work. The Census Bureau puts Peachtree City's July 2025 population estimate at 40,880 across 15,461 households, at 2.54 persons per household, with an owner-occupied housing rate of 72.1 percent, a median owner-occupied home value of $482,500, and a median household income of $113,987. Land area is 25.14 square miles at 1,521.1 people per square mile. The 2020 decennial count was 38,244.

Fayette County as a whole is estimated at 125,156 people in July 2025 across 47,621 housing units and 44,581 households, at 2.72 persons per household, with an owner-occupied rate of 80.1 percent, a median home value of $436,400 and a median household income of $111,978. The county covers 194.56 square miles. The practical read for outdoor structures is that the great majority of these homes are owner-occupied detached houses whose owners intend to stay, which is the condition under which a capped composite deck or a screened porch actually pays back rather than simply being spent.

The things we could not find published, and are not going to invent

Several questions people ask us have no clean public answer, and it is more useful to say so than to guess. There is no published figure we could verify for the number of residential deck permits issued annually in Peachtree City, nor for the average age of the city's existing decks. Peachtree City publishes monthly permit reports but not a durable series broken out by structure type. We also could not verify a specific municipal code section number for the tree ordinance itself; the substantive rules quoted on this page come directly from the city's own Tree Permits page and its tree removal permit application, which are the operative documents a homeowner is handed, rather than from a section citation we could not confirm.

Two more gaps worth naming. Tyrone's tree removal thresholds are its own and we did not find them published in a form we could quote, so nothing on this site states them - the town should be asked directly, and the Peachtree City numbers should not be assumed to apply a mile north. And the pricing ranges published on this site are built from metro Atlanta cost surveys and manufacturer material pricing rather than from any official source, because no government body publishes deck cost data. They are ranges, they are honest ones, and the only number that means anything for your project is the one on a measured written quote.

Sources & Methodology

Every figure above was taken from the primary sources below (accessed 2026-07-25). Where a number is derived (arithmetic on published figures) or covers a broader period or area, the text says so.

1. NOAA NCEI Comparative Climatic Data - Normal Precipitation — Normal monthly and annual precipitation in inches, 1991 to 2020, for ATLANTA, GA under station USW00013874. Source of the 50.43 inch annual figure and every monthly precipitation value in the climate table.
2. NOAA NCEI Comparative Climatic Data - Normal Daily Maximum Temperature — Normal daily maximum temperature by month, 1991 to 2020, for ATLANTA, GA. Source of the 90.1 degree July maximum, the 73.2 degree annual figure and the maximum column in the climate table.
3. NOAA NCEI Comparative Climatic Data - Normal Daily Minimum Temperature — Normal daily minimum temperature by month, 1991 to 2020, for ATLANTA, GA. Source of the 71.8 degree July minimum, the 54.1 degree annual figure and the minimum column in the climate table.
4. NOAA NCEI Comparative Climatic Data - Days With Maximum Temperature 90F or Above — Mean number of days with a maximum temperature of 90 degrees or higher for ATLANTA, GA, period of record January 1930 through December 2023. Source of the 44-day annual figure quoted throughout this site.
5. NOAA NCEI Comparative Climatic Data - Days With Precipitation 0.01 Inch or More — Mean number of days with 0.01 inch of precipitation or more for ATLANTA, GA, 1930 through 2023. Source of the 115-day annual figure and the rain-day column in the climate table.
6. NOAA NCEI Comparative Climatic Data - Relative Humidity — Average morning and afternoon relative humidity by month for ATLANTA, GA, 1945 through 2018. Source of the 81 percent morning and 55 percent afternoon annual averages and the July and August morning readings.
7. NOAA NCEI Comparative Climatic Data - Days With Minimum Temperature 32F or Below — Mean number of days with a minimum temperature at or below 32 degrees for ATLANTA, GA, 1930 through 2023. Source of the 42-day annual figure used in the footing depth discussion.
8. U.S. Census Bureau QuickFacts - Peachtree City and Fayette County — Population estimates, households, persons per household, owner-occupied rate, median home value, median household income and land area for both geographies. Source of every figure in the housing stock table.
9. City of Peachtree City - Tree Removal Permit Application — The operative application form. Source of the 8-inch understory and 18-inch canopy DBH thresholds, the specimen classifications at 20 inches for hardwoods and 24 for softwoods and sweetgums, the removal criteria, and the documentation the city requires with an application.
10. City of Peachtree City - Tree Permits — The city's plain-language summary of the tree ordinance. Source of the $20 per caliper inch Tree Fund contribution, the two-tree minimum per lot, the pruning and limbing exemption, and the prohibition on removals in greenbelts and environmental protection areas.
11. City of Peachtree City - Building Permits — Source of the submittal requirements, including a site plan drawn on a plat or survey showing distances from property lines, easements and existing structures, and of the three to five business day residential plan review window.
12. City of Peachtree City - Design Guidelines — Source of the Architectural Standards review scope - properties within 500 feet of a major thoroughfare, reviewed by the Planning Commission - and of the statement that single-family properties are exempt from that review.
13. Georgia DCA - Current State Minimum Codes — The Department of Community Affairs list of mandatory Georgia codes. Source of the statement that the 2024 International Residential Code with the 2026 Georgia Amendments is the enforced residential code.
14. Georgia DCA - 2026 Amendment Packet to the 2024 International Residential Code — Effective January 1, 2026. Source of the amended R507.9.1.3 ledger predrill language and the revised figures for ledger to band joist attachment with and without cladding.
15. Georgia DCA - Georgia Amendments, Prescriptive Deck Details — Source of the 40 psf live and 10 psf dead design loads for southern pine No. 2 under wet service, the 12-inch minimum footing depth, the 6x6 post standard to 14 feet, the 4-inch sphere guard opening limit and the ledger flashing requirements.
16. Fayette County Building Safety - Residential Deck Guide — Source of the local ledger rules, including the nominal 2x8 minimum, half-inch through-bolts with washers, the prohibition on attaching to brick, masonry or stone veneer, cantilevered overhangs and open-web trusses, plus guard, hold-down and stair requirements.
17. American Wood Protection Association - Residential Use Category Guide — Source of the UC3B minimum for above-ground deck boards, joists, beams and railing and the UC4A minimum for ground-contact joists, beams and structural posts.
18. National Weather Service - Atlanta and Peachtree City Forecast Office — Confirms the forecast office serving this part of Georgia is located at 4 Falcon Drive, Peachtree City, GA 30269.