Home projects in Tarrytown and West Austin

Tarrytown sits in the bend between MoPac and Lake Austin, west of downtown and north of Lady Bird Lake. It's an older, leafy neighborhood whose houses were built mostly from the 1930s into the 1960s. There are brick and stone cottages, mid-century ranches, and a growing number of large new houses where older homes were torn down. Lots tend to be wider than in Hyde Park or Bouldin, the canopy is dense, and the neighborhood has strong opinions about scale. Plan for all three.

The scale rules: Subchapter F

Most of central Austin, Tarrytown included, falls under the city's Residential Design and Compatibility Standards, Subchapter F of the land development code, often called the "McMansion" rules. They limit a single-family house's size relative to its lot (floor-to-area ratio) and shape its height and side walls with a "tent" envelope. That affects:

• Second-story additions, which have to fit inside the envelope near the side setbacks.
• Teardown rebuilds, where the allowed size is usually smaller than buyers expect from the lot size.
• Attic conversions, where some attic space counts toward floor area and some doesn't, depending on height.

HOME changed the picture for lots with two or three units. The city limits Subchapter F to lots with a single housing unit, so a two- or three-unit project follows different site standards. Have your designer run both scenarios if you're weighing a large single house against a house plus a second unit.

Heritage oaks and the canopy

Tarrytown's live oaks and pecans are a big part of its value, and they're protected. Trees of 19 inches or more in diameter at 4.5 feet above grade need a permit before removal or significant root-zone impact. Heritage trees of 24 inches or more of listed species usually need a variance to remove. The critical root zone of a large oak can extend well past its drip line, so additions are frequently designed in an L-shape or on piers to protect roots. Driveways and pool sites get relocated for the same reason. Order an arborist's tree survey first.

Near the lake

Lots along Lake Austin and near Taylor Slough have extra rules. Shoreline setbacks, lakefront overlay limits on coverage and height, floodplain, and shoreline structures such as docks and bulkheads each have their own permits. If your lot touches the water or a creek, expect a longer review and engineered plans.

Wildfire code on the west edge

The western edge of Tarrytown and areas near preserve land and the Lake Austin bluffs can fall within the city's Wildland-Urban Interface. Within those zones, roofs, vents, decks and siding near grade must be ignition-resistant. Check your zone before choosing a cedar-shake look or a wood deck.

What Tarrytown houses usually need

• Windows. Original steel casements and wood windows are common in 1930s–1950s houses. Both can be restored, but many owners replace them for comfort and security. National cost data puts typical replacement at about $450 to $1,500 per window, and custom steel or wood windows for historic openings cost well above that.
• Electrical and plumbing. Houses this age often have original wiring, galvanized supply pipes and cast-iron drains, and a kitchen or bath remodel is the time to replace them.
• Insulation and HVAC. Plaster walls and shallow attics in older houses make air sealing and attic insulation the first comfort step. Duct systems in older homes were often added later and are leaky.
• Roofing. Many houses have older composition or tile roofs. Hail is the usual reason for replacement, and WUI rules apply where mapped.
• Lead-safe practices for any paint disturbance on pre-1978 houses.

Austin Energy serves Tarrytown, and its whole-home energy savings rebates, AC rebates and heat pump water heater rebates can help pay for comfort upgrades. Check current amounts before you sign.

Renovate or rebuild?

Tarrytown owners often weigh a major renovation against a teardown. Things to price before deciding:

• How much of the existing house can stay under Subchapter F if you add on.
• Tree constraints, which apply either way and often shrink a rebuild's footprint.
• Utility upgrades. A new house may need larger water and electric service.
• Whether a second unit under HOME gives better value than one large house.

Projects that make the most sense here

1. Kitchen and bath remodels with full electrical and plumbing replacement.
2. Rear or L-shaped additions planned around tree root zones.
3. Window restoration or replacement in original openings.
4. Attic insulation, duct replacement and a right-sized heat pump.
5. Outdoor living areas such as screened porches and terraces under the canopy, with tree-safe footings.