Converting a Diving-Board Pool to a Tanning-Ledge Play Pool in Alpharetta

Q: Our HOA just banned diving boards and our 8.5-foot deep end sits unused for 11 months a year — can we actually shrink the deep end and add a tanning ledge without rebuilding the whole pool? A: Yes, and in Windward and Country Club of the South we’re doing 6 to 9 of these conversions per season for roughly $38,000 to $58,000.

The call usually comes in March. A family in Hutchinson Farm or Deerfield gets an HOA notice that the covenants have been updated — diving boards, stands, and slides over a certain height are no longer permitted under the new insurance rider. The homeowner looks out at a 1998 gunite pool with an 8.5-foot deep end, a diving board that has not been used by anyone over twelve in eight years, and a shallow end that cannot comfortably hold the three grandkids plus two inflatable loungers during a July cookout. They want to know if the pool can be fixed instead of replaced.

It can. The conversion is mature construction — gunite infill on top of the existing shell, structural steel tied into the original bond beam, a separate shell pour for the tanning ledge, and a full replaster-and-tile sequence to finish. What we’re describing here is the exact sequence we’ve run on Alpharetta 30004 and 30005 projects for the last four seasons. The angle is unglamorous and the engineering is specific, but the result rewires how a family uses the backyard.

01 — Why Alpharetta HOAs Started Banning Diving Boards Between 2015 and 2020

The shift was not aesthetic, it was actuarial. Between roughly 2015 and 2020, the major Alpharetta HOAs — Windward, Country Club of the South, Hutchinson Farm, Deerfield, White Columns, Ashebrooke — began receiving revised premium quotes from their umbrella insurance carriers. The carriers flagged residential diving boards as a high-frequency claim category tied to cervical spine and dental injuries, and applied either a direct surcharge to communities that permitted them or an outright exclusion on the liability rider.

The HOA boards did the math and updated the covenants. Country Club of the South moved in 2017. Windward followed in 2018. By 2020 most of the gated and semi-gated North Fulton communities had language on the books that prohibited new diving boards and required existing ones to be removed at the time of any major pool renovation or home resale. The ARB review process for a pool remodel in Windward or Country Club of the South now includes a diving-board removal line item as part of the submittal packet.

This matters for timing. If you are planning to sell your Alpharetta home inside the next three years and your pool still has a board, the inspector will flag it, the buyer’s agent will use it, and the HOA will require removal as part of transfer. The conversion we’re describing solves the covenant issue and the usability issue in one construction window.

02 — The Full Engineering Scope: What Actually Happens Inside the Shell

Most homeowners picture this job as “pour some concrete in the deep end.” It is not that. A diving-board-to-tanning-ledge conversion is a structural modification to a gunite vessel and the engineering sequence has six discrete phases:

1. Demolition and removal. Diving board, stand, and anchor bolts come out. If there’s a fiberglass deep-end extension (common on 1990s Alpharetta builds), it’s cut free from the gunite shell and removed. Existing coping is saved if possible, demolished if not.
2. Surface prep on the existing shell. The deep-end walls and floor get scarified — we use a 30-grit diamond grinder to expose aggregate so the new gunite bonds mechanically to the old. Every square foot of the fill zone is prepped.
3. Structural steel tie-in. We drill into the original bond beam and floor on a grid (typically 12 inches on center) and epoxy-set #4 rebar dowels. The new fill layer gets its own rebar cage tied into those dowels. This is the step that separates a conversion that holds for 25 years from one that hairline-cracks in three.
4. Gunite infill pour. The deep end is raised from 8.5 feet to a family-friendly 5.5 feet using shot gunite in lifts. The new shallow slope transitions smoothly into the existing mid-pool hopper.
5. Tanning ledge shell. Separate form-up and gunite pour for the 18-inch-deep integrated tanning ledge at the shallow-end corner. Umbrella sleeve is cast into the floor. Bubblers plumbed in if specified.
6. Replaster, new waterline tile, recoping. The entire pool interior is sandblasted and replastered — Pebble Tec Pebble Sheen or Diamond Brite are the two finishes we pull from. Waterline tile gets replaced because the old band will sit two-plus feet below the new waterline.

Start to finish, the build window runs 6 to 9 weeks weather-dependent. The 20 freeze events we see annually in Zone 8a are the main schedule risk — fresh plaster cannot cure under 50°F — so most homeowners target a late-March-through-May construction window to land the fill in mild weather.

03 — Sizing the Tanning Ledge: The 18-Inch Spec and Why 12-by-8 Is the Sweet Spot

The tanning ledge is the headline feature of the conversion and it’s where homeowners most often over-design. A tanning ledge that’s too small feels like a step; too big and it eats usable swim lane. The number we’ve landed on across 40-plus Alpharetta conversions is 12 feet by 8 feet, 18 inches deep, tucked into the shallow-end corner opposite the steps.

Why 18 inches. Deeper than a standard Baja shelf (which runs 9 to 12 inches), shallow enough that a 3-year-old can stand with their head clear of the water, deep enough that a parent can lie on a tanning lounger half-submerged without their torso drying out in the Alpharetta July sun that routinely hits 89 to 94°F. This is the depth that turns a ledge from a toddler-only zone into a family-wide feature.

Why 12 by 8. At 96 square feet you can fit two adult in-water loungers side by side with an umbrella in the middle, or two loungers plus a small floating cooler. Under 80 square feet and the loungers fight each other. Over 110 square feet and you’ve stolen more swim area than the family will forgive two Julys in.

The floor of the ledge gets one or two Pentair bubblers plumbed to their own valve — the bubblers turn a flat ledge into a sensory play zone for toddlers and a light theatrical feature for evening cocktail use. Umbrella sleeve goes in the centerline during the gunite pour, usually a 1.5-inch Schedule 40 PVC sleeve set to accept a standard 1.5-inch aluminum pole.

04 — The Cost Breakdown: Where $38,000 to $58,000 Actually Lands

Full transparency on what the money buys, because the range is real and it matters which end of it your project sits on. Here is how a recent Windward conversion priced out at $47,400 turnkey:

• Permitting, ARB submittal coordination, engineered drawings — $2,800
• Demo of diving board, stand, fiberglass extension, old coping — $3,900
• Surface prep, structural dowel tie-in, rebar cage — $5,200
• Gunite deep-end fill (approximately 11 cubic yards shot) — $9,400
• Tanning ledge shell with bubblers and umbrella sleeve — $6,800
• Replaster entire pool interior, Pebble Sheen — $8,900
• New waterline tile, 6×6 glass — $3,400
• Recoping travertine to match existing deck — $4,600
• Startup chemistry, balance, and 30-day plaster cure schedule — $2,400

Projects land toward the $38,000 floor when the coping is retained, the existing plaster still has five-plus years of life and only the fill zone gets refinished (rare but possible), and there are no structural surprises inside the shell. Projects land toward the $58,000 ceiling when the homeowner upgrades to premium finishes — Pebble Tec Prism or StoneScapes Mini Pebble, full travertine deck replacement, custom glass mosaic on the ledge floor, LED color-changing lights around the ledge perimeter, or an integrated spa spillway rework.

None of this includes equipment pad modernization. If the pool is old enough to have had a diving board installed in 1998, the Hayward or Pentair equipment is probably running past its useful life and should be budgeted separately — variable-speed pump, cartridge filter, salt cell — figure another $6,500 to $11,000 if it’s time.

05 — What the Conversion Does to Resale Value (Interviews With Two Alpharetta Appraisers)

We interviewed two Alpharetta residential appraisers — both active in North Fulton for 15-plus years, both appraising the Windward-to-Avalon corridor — to understand how a board-to-ledge conversion reads on a comp. The consistent answer: a converted pool appraises 12 to 18 percent higher than a comparable backyard with an unconverted diving-board pool, on homes in the $900K-to-$2.2M band.

The reasoning is not sentimental. Appraisers see diving-board pools as deferred maintenance on two axes: HOA covenant risk (board will need to come out at transfer), and buyer-pool narrowing (diving boards scare off families with toddlers, which is the dominant buyer demographic in Windward, Hutchinson Farm, and Cambridge Parks). A converted pool with an integrated tanning ledge appraises as a fully modern water feature, priced against 2020-and-newer builds instead of 1998-and-older ones.

On a $1.4M Windward home, that 15 percent delta on the pool-attributed value works out to roughly $22,000 to $28,000 of appraisal lift against a roughly $47,000 construction cost. The conversion usually returns 45 to 60 percent of its cost to appraised value — which is unusual for any pool work. The rest of the ROI is use: the family actually swims in the pool now.

06 — The Six-Week Build Calendar and Three Alpharetta-Specific Scheduling Traps

A clean conversion schedule on a Windward or Hutchinson Farm project looks like this, assuming permits and ARB clear before week one:

1. Week 1: Drain, demo diving board and fiberglass extension, haul off debris. Scarify shell surface.
2. Week 2: Drill dowels, set rebar cage for fill zone and ledge shell. Inspect.
3. Week 3: Gunite shoot for deep-end fill and tanning ledge (same crew, same day where possible). Begin 14-day cure.
4. Week 4: Plumb bubblers, set umbrella sleeve, prep for tile. Recope as needed.
5. Week 5: Sandblast interior, install waterline tile, mask for plaster.
6. Week 6: Replaster, fill slowly (48-hour fill cycle), startup chemistry, begin 30-day plaster brushing schedule.

Three scheduling traps specific to Alpharetta projects:

Trap 1 — ARB review at gated communities. Windward and Country Club of the South ARBs run a strict 3-to-4-week architectural review regardless of what the city permit window is. Submit the ARB package the same day you submit the city permit, not after. If you wait for the city to approve before submitting ARB, you’ve added a month to your schedule for nothing.

Trap 2 — Georgia Power versus Sawnee EMC service drops. Most of Alpharetta is Georgia Power territory, but a narrow footprint along the north Alpharetta-into-Milton border sits on Sawnee EMC. If the equipment pad rewire requires a service drop coordination, the inspection calendars differ and Sawnee’s approval window is typically a week longer. Confirm which utility serves your meter before the equipment phase starts.

Trap 3 — Piedmont red clay hydration. Alpharetta sits on Cecil-series Piedmont clay with moderately high shrink-swell behavior. A pool that’s been drained for demo and fill work has zero hydrostatic counterpressure against the surrounding soil. If the conversion spans a heavy-rain week, the surrounding clay can swell and put inward pressure on the shell. We monitor for this and in wet weeks we’ll partially refill the shallow end early to equalize. Pockets of Appling sandy loam in older farm-conversion tracts near Rucker Rd and Academy St drain faster and are less of a concern.