Later Town of Mamaroneck streets
This town street is not on one named club or Grand Park remnant in the sources used here. It was cut from leftover unincorporated farmland — Washingtonville, the Post Road farms, and the later plats around Byron, Chatsworth, and the Larchmont line.
The unincorporated town is what did not go into Larchmont (1891) or the Village of Mamaroneck (1895). House lots kept arriving into the 1950s.
Unincorporated farms and later plats
Mamaroneck · 1900–1960 · 2,423 lots on the current roll · 221 streets.
See this holding on the map · How streets are matched to estates
Streets on the 2026 roll
The match is made by street name. A house on one of these streets gets this card.
- 1/2 Dillon Rd, Mamaroneck
- 10-12 Valley Pl, Mamaroneck
- 3-5 Locust Ter, Mamaroneck
- Acorn Ln, Mamaroneck
- Addee Cir, Mamaroneck
- Adrian Cir, Mamaroneck
- Alden Rd, Mamaroneck
- Althea Ln, Mamaroneck
- Arrowhead Ln, Mamaroneck
- Avon Rd, Mamaroneck
- Baldwin Ave, Mamaroneck
- Baldwin Pl, Mamaroneck
- Barnard Rd, Mamaroneck
- Barnum Rd, Mamaroneck
- Barnwall Ln, Mamaroneck
- Beresford Ln, Mamaroneck
- Birch Rd, Mamaroneck
- Birchfield Rd, Mamaroneck
- Blossom Ter, Mamaroneck
- Bobby Close, Mamaroneck
- Bonnie Briar Ln, Mamaroneck
- Bonnie Way, Mamaroneck
- Boston Post Rd, Mamaroneck
- Boulder Brae Ln, Mamaroneck
- Boulder Cir, Mamaroneck
- Boulder Rd, Mamaroneck
- Briar Close, Mamaroneck
- Briar Del Cir, Mamaroneck
- Briarcliff Rd, Mamaroneck
- Brookside Pl, Mamaroneck
- Bruce Rd, Mamaroneck
- Bryson St, Mamaroneck
- Burton Rd, Mamaroneck
- Byron Ln, Mamaroneck
- Cabot Rd, Mamaroneck
- Campbell Ln, Mamaroneck
- Carleon Ave, Mamaroneck
- Carol Ln, Mamaroneck
- Carriage House Ln, Mamaroneck
- Carroll Pl, Mamaroneck
181 more streets sit on this holding on the 2026 roll.
Sources
This is unofficial. It is not a title search, a survey, or real-estate advice. The colored areas on the map are outlines reconstructed from the sources. They are not surveyed deed lines.
FAQ
Is this a title search?
No. The street is matched to a researched plat or holding. Confirm a boundary on a county atlas, a filed plat, or a deed.
How far back does this go?
About 1870 to 1960. It covers the country places, farms, orchards, and clubs that were divided into today's streets.
Unofficial. Confirm figures on the town’s official roll or in PROS, the county’s property records system, before you act on them.