More than a century after lumber barons built their estates along the ridge, Mount Curve Avenue remains the architectural spine of Lowry Hill.

By 1906, the lots fronting Mount Curve Avenue, Groveland Terrace and the nearby blocks were the addresses of some of the most expensive houses in Minneapolis. The extension of the electric streetcar along Hennepin Avenue and westward along Douglas Avenue had touched off a real-estate boom on the hill in the 1890s, and within a decade the ridge had filled with the homes of lumber, milling and merchant families.
The characteristic streetscape of broad lawns, boulevard shade trees and generously spaced houses was already taking shape by 1900. The neighborhood standard then was a spacious two-and-a-half-story house with deep porches and elaborate exterior detail, and it largely remains so today.
What makes Mount Curve unusual among grand American avenues is how intact it is. Block after block of the original estates survive, many still in single-family use, their carriage houses and stone walls reading like a catalog of turn-of-the-century taste.
The avenue follows the crown of the hill, and the homes on its north side look out over the basin that holds downtown Minneapolis. That topography is exactly why the wealthy chose it: the hill caught the breeze, sat above the smoke of the milling district, and offered a prospect over the growing city below.
Today the same ridge gives residents and visitors one of the best vantage points in the city, a fact not lost on the architects who oriented the grandest rooms of these houses toward the skyline.
The standard was, and still is, a spacious two-and-one-half-story house with generous porches and exterior detail.
The hill filled in fast once the electric streetcar reached it. Through the 1890s and into the 1900s, lumber, milling and merchant families moved up from the smoke of the riverfront and the downtown core, and by 1906 the lots fronting Mount Curve Avenue and Groveland Terrace were among the most expensive in Minneapolis. The Lowry Hill Neighborhood Association's own history records that the look took hold by 1900: broad lawns, boulevard shade trees, well-spaced houses, and a standard of a spacious two-and-one-half-story home with generous porches and exterior detail.
The architects who shaped the street are still household names among preservationists. William Channing Whitney, who designed the landmark Charles J. Martin House at 1300 Mount Curve, worked the avenue, as did the firm of Kees and Colburn, responsible for the 1906 Donaldson mansion. The result is a street that reads like a built catalog of turn-of-the-century American taste.

The East Isles Neighborhood Association holds its annual Summer Social on Wednesday, June 14, from 6 to 8 p.m. at Joanne Levin Triangle Park, with a rain date of June 15.

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Mount Curve's intactness is not an accident. Several of its houses carry National Register or city-landmark status, and the surrounding neighborhood's stewardship — much of it organized through the Lowry Hill Neighborhood Association — has kept the avenue from the demolition that thinned grand streets in other American cities. The Lowry Hill Neighborhood Association holds monthly board meetings — recently on Tuesday evenings from 6:30 to 8 p.m. — and invites every resident 16 and older to attend and get on the agenda.
Preservationists and longtime owners tend to describe the avenue the same way: as a responsibility more than a trophy. Slate roofs, leaded glass and carriage houses are expensive to keep, and the people who live there increasingly frame their work as holding the line for the next century, not just enjoying the view from this one.
What sets Mount Curve apart from grand avenues that became museums is that it is still lived in. Many of the original estates remain single-family homes, their carriage houses and stone walls intact, their owners cycling slate roofs and storm windows through the seasons rather than roping them off behind velvet.
That working quality is part of the preservation argument. A street kept in use, neighbors note, is a street with a constituency — people with a direct stake in seeing the next owner maintain the standard rather than tear down and start over.
For now, more than a hundred years after the lumber barons arrived, Mount Curve still does what it was built to do — crown the hill, and remind the rest of the city what Minneapolis money once built.
The Lowry Hill East Neighborhood Association reviews apartment and land-use proposals in the Wedge through its Community Development Committee, the volunteer-led forum where the neighborhood weighs in before projects reach the City Council.

Land use is the recurring flashpoint in Lowry Hill, a neighborhood of Victorian and Prairie-style homes where even a modest multi-unit proposal draws scrutiny under the city's built-form rules and the 2040 comprehensive plan.