Old Hickory Lake Deck Builder, Davidson County Side: The Two-Permit Lake Town

Building a deck on the Davidson County side of Old Hickory Lake means working with two separate permitting authorities. Metro Codes governs the residential structure side. The U.S. Army Corps of Engineers Nashville District governs anything that touches the lake's normal pool elevation of 445 feet above mean sea level, the maximum pool of 451 feet, or extends over the water itself. Knowing which authority governs which part of your project before the framing plan is drafted decides whether the deck gets built once or built twice — or whether it gets a stop-work order from the Corps the day after it is framed.

That two-permit reality is the structural fact that defines deck construction on this stretch of the lake. The properties along Robinson Road, Lakeview Drive, Cinder Road, and the residential streets of the Old Hickory community sit on a Cumberland River reservoir that the federal government has actively managed since the dam was completed in 1954. Private property typically extends to the 451-foot contour line. Anything below that line — boat docks, lakefront retaining walls, deck cantilevers that overhang the water, integrated stair systems that descend toward the shoreline — falls under Corps shoreline management.

Deck Craft has been working the Davidson side of Old Hickory Lake since 1999. The two-permit reality is not a complication; it is the standard operating environment. We file Corps applications and Metro permit applications in parallel, and we design every lake-adjacent project to satisfy both authorities from the framing plan stage.

Where the Davidson Side of the Lake Actually Sits

Old Hickory Lake spans Davidson, Sumner, Wilson, and Trousdale counties. The Davidson County portion runs along the southern shore from the Old Hickory Dam upriver to the Davidson-Wilson County line. The communities on this stretch include Old Hickory itself (ZIP 37138), the Lakewood and Hermitage areas adjacent, and the residential streets that fan back from the shoreline.

The Davidson side is administered by Metro Nashville for residential building permits, with the Army Corps of Engineers Nashville District managing the lake itself. There is no separately incorporated city in this section of the lake — Old Hickory is a Nashville community rather than a municipal jurisdiction. That is different from the Sumner County side, where Hendersonville operates its own city government and code department. Properties on the same lake but on different shores are under different regulatory regimes.

The Two-Permit Reality: Metro Codes Plus the Corps

Metro Codes Department at 800 Second Avenue South in downtown Nashville processes the residential building permit for any deck attached to a Davidson-side Old Hickory home. The standard package — application, two stamped copies of the framing plan with footing and post details, manufacturer specifications for any composite or PVC materials, the property survey with deck footprint and setbacks — applies the same way it does anywhere else in Davidson County.

The Corps shoreline permit is a parallel process administered through the Nashville District office. Any structure that crosses the 451-foot contour, overhangs the water, or modifies the shoreline requires Corps review. The Corps maintains a Shoreline Management Plan (last updated 2020) that defines what is permissible and what requires individual review. Boat docks, mooring posts, swim platforms, and shoreline-protection structures all require Corps permits. Many overhanging deck cantilevers, particularly those projecting beyond the property's upland portion, also fall under Corps jurisdiction.

The two timelines do not match. A Metro deck permit on a complete submittal typically runs five to seven business days. A Corps shoreline permit can run forty-five to ninety days depending on the project category and whether it falls under nationwide permits or requires individual review. We file Corps applications first when the schedule allows, and we structure the project's construction sequence so the upland deck work can proceed under the Metro permit while the Corps-jurisdiction elements wait for federal approval.

The Old Hickory Village Historic District

The community of Old Hickory began as a planned company town built by the DuPont Powder Company in 1918 to house workers at the Old Hickory Powder Plant during World War I. The plant produced smokeless powder for the U.S. military. After the war the plant was sold and the village transitioned to a regular residential community, but the original 1918 street grid, lot pattern, and a meaningful portion of the original housing stock survives.

The historic core of Old Hickory is a National Register Historic District. For deck projects on properties within the historic district boundary, the Metro Historical Commission overlay review applies in addition to the standard Metro building permit. The original housing stock is modest by current standards — one-story workers' cottages, four-square plans, and small bungalows — and the architectural-integration considerations for a deck on one of these homes are different from the considerations for a contemporary lakefront estate two miles away.

Knowing whether your address sits inside or outside the historic district matters before drafting the design. The lakefront estates along Robinson Road and the more recent waterfront construction generally fall outside the historic boundary. The original village blocks closer to the dam and the powder plant site fall inside.

Lake-Adjacent Deck Design: The Sightline Conversation

A lake-adjacent deck is fundamentally a different design product than a backyard deck. The water is the asset. Every architectural decision — the deck's elevation off grade, the railing infill choice, the cover or pergola decision, the screened-section integration, the stair direction — is in dialogue with the view to the water.

Several design conventions hold up consistently on Old Hickory Lake projects.

Lower deck elevations often work better than higher ones because they read as continuous with the lawn and the shoreline rather than perched above them. Where grade allows, a deck closer to the natural ground plane integrates more cleanly with the lake view than a deck elevated for ceiling-height clearance underneath.

Glass or cable railing infill, while expensive, almost always reads better than a traditional baluster system on a lake elevation because the infill does not interrupt the sightline to the water. The structural engineering is more demanding and the budget is higher, but the design payoff is real.

Covered sections — pergolas, partial roofs, or full covered porches integrated with the deck — extend the usable season meaningfully on a Tennessee lake. The summer humidity makes a partly covered space the more livable option from June through September. A pergola with a retractable shade is the middle-cost solution; a full screened porch is the higher-cost solution; both have their place depending on the project budget and the homeowner's intended use.

Stair direction matters. Stairs that descend toward the water rather than parallel to the shoreline reinforce the sightline. The stair design is not just a code-compliance exercise on a lake project; it is part of the architectural intent.

The 445-Foot Contour and What It Means for Footings

The lake's 445-foot normal pool elevation determines where the wet ground starts. The 451-foot maximum pool elevation determines where the seasonal high water reaches. Footings on a lake-adjacent deck have to account for both.

For decks well above the 451-foot contour the standard IRC R403.1.4 footing depth — twelve inches below grade minimum to clear the frost line — is the controlling specification. For decks sitting closer to the contour, the practical footing design has to account for seasonally saturated soil, potential erosion of the surrounding grade during high-water events, and the additional lateral loads that a flooded condition can transmit to the structure. We design the footings deeper and the post-to-footing connections more robustly on properties that sit close to the high-water line.

The Corps does not generally permit deck footings inside the 451-foot contour without an individual permit, and individual permits for in-contour foundations are difficult to obtain. The practical design boundary for the upland deck structure is the 451-foot line. Beyond that line the project enters dock-and-shoreline-structure territory under separate Corps regulation.

Boat Dock Integration

Many Old Hickory Lake homes integrate the residential deck with a boat dock system below. The dock is a separate Corps-permitted structure but the upland deck is often designed to flow visually and circulationally toward the dock — covered transition spaces, integrated stair systems descending to the dock platform, and material continuity between the two.

We work with dock builders frequently on these projects. The dock construction itself is a different trade with different equipment requirements (work boats, marine pile drivers, in-water construction methods), but the design integration between the upland deck and the dock is part of our scope when the project warrants it. The Corps reviews the dock and the upland deck separately, but the architectural intent is to read as one continuous waterfront experience.

Materials That Hold Up on a Lake

Old Hickory Lake's combination of high humidity, intense summer UV, freeze-thaw cycles, and direct water exposure on the lake-facing elevation puts deck materials under more stress than a typical inland Davidson County backyard.

For full-sun lake elevations, TimberTech AZEK in the lighter weathered tones runs cooler underfoot in July and resists UV fade meaningfully better than the dark composite tones. Deckorators Voyage with the mineral-based core stays the most dimensionally stable across the freeze-thaw cycles and the seasonal humidity swings.

For shaded or partially shaded north-facing elevations, Trex Transcend in the deeper espresso tones reads warmer with the architecture and avoids the algae-green tint that lighter composites can pick up under tree canopy with sustained moisture. Hidden fasteners are standard at the price points we work at on lake projects. Visible screw-down installation reads cheap on a waterfront elevation.

Wood is appropriate on certain lake projects, particularly for the historic-district homes inside Old Hickory Village where the architectural language calls for it, but the maintenance commitment in a lakeside environment is real. Pressure-treated wood with a quality stain finish requires refinishing more frequently on a lake-exposed elevation than on an inland elevation.

For railing systems on the lake-facing side, glass or cable infill systems clear the sightline best. For the side and rear elevations away from the water, traditional baluster systems can read appropriately depending on the architectural language of the home.

Mid-Century Lake Stock vs. Newer Waterfront Construction

The Davidson side of Old Hickory Lake has two main waves of construction. The mid-century lake homes built in the 1950s and 1960s on the original lots immediately following dam completion are typically modest single-story structures sized for a different era of lake recreation. The newer waterfront construction from the 2000s onward is substantially larger, contemporary, and designed around current lake-living expectations.

For the mid-century stock the deck conversation is usually about adding a substantial outdoor living space that the original 1955 home did not include. The deck adds the function of a secondary outdoor room. The architectural challenge is integration — adding a contemporary-scale deck to a modest mid-century home without overwhelming the original elevation.

For the newer waterfront construction the deck is typically integrated into the original architecture and the conversation is about replacement or expansion as the existing 2005-vintage deck reaches end-of-life. New-construction or near-new-construction conditions allow for the full current material range and the contemporary design vocabulary.

A Personal Note on Working a Lake Town

The Davidson side of Old Hickory Lake reads differently in 2026 than it did in 1999. The lake itself is the same lake, the dam is the same dam, the Corps regulations have evolved but the fundamental two-permit reality has held. What has changed is the housing stock. The mid-century homes are increasingly being replaced by larger waterfront construction. The original Old Hickory Village has held its character through the historic district designation. The streets immediately back from the shoreline have densified.

Twenty-seven years of working lake projects means knowing the Corps process as a routine part of the workflow rather than as an obstacle. Knowing the Old Hickory Village historic boundary as a regulatory line on the map. Knowing which dock builders and which marine-pile contractors do work that meets our standards for the integrated projects. The lake town is its own working environment, and we have been working it for a long time.

That is the project we are quoting.

Deck Craft TN GC #78722 Williamson County Chamber of Commerce member Building decks in Williamson County since 1999 615.555.0123 (please replace with current line) 231 Public Square, Franklin, TN 37064 deckcraftnashville.com