In Madison/the observ^c» will begin Saturday with “Mayfair on the Square,” an Old-English-style festival from 9 am to 5 pin. at Grace Episcopal Church, 116 W. Washington Ave. (See accompanying story.)Also on Saturday, Common Wealth Development Corp. will hold its annual all-lt;iay garage and flower sale at839-847 Williamson St., 502 Russell St., 1138 Spaight St., and 2321 Willard Ave. Proceeds will benefit neighborhood conservation projects.Other events, free and open to the public unless otherwise noted, are as follows:Sunday: 11 am to 2 p.m. — “Community Preservation: What are the Options?” Common Wealth’s annual meeting and brunch, Wil-Mar Neighborhood Center, 953 Jenifer St (Donation requested); 1 to 5 p.m. —* An afternoon at the Braley House, a renovated Madison landmark, 422. N. Henry St, benefit for Madison Trust for Historic Preservation. (See stoiy in today’s PM.) $10 donation requested at the door, For more infonnation,call Gary Tipler at 257-9335.Monday: 11 am — ment awards, Room 201, City-County Building, spon-Walking tour of Capitol Square, led .by Madison;in. Meet at StateStreet comer Tuesday: NoonSlide show and talk on leadedi Noon — Walking tourof University Heights, led by Landmarks Commission chairman Gordon Oit. Meet at First Congregational Ghurqh, 1609 University Ave.; 7:30 p.m. — “Directions in Neighborhood Preservation,” panel and slides, State Historical Society auditorium, 816 State St. Sponsored by Landmarks Commission and Madison Trust for Historic Preservation.— Walking tour of Prairie Schoolbuildings on near east side, led by Gordon Orr. Meet at City Parks Division office, 704 E. Gorham St.; 7:30 pm — Atwood-Schenk’s Comers “local heritage evening.” Slides, discussion, refreshments. Atwood Community Center, 2425 Atwood Ave.Friday: Noon — Walking tour of Mansion Hill Historic District, led by Gary Tipler. Meet at State Street comer of Square.Saturday, May 16: 4:30 p.m. — Walking tour of Third Lake Ridge Historic District, led by David Mol-lenhoff and Dick Wagner. Meet at Orton Park band-Ingersoll and Spaight Street. Sponsored byrhood Association.^ of Rural DaneCounty?” photo exhibit by Don Kerkhof, main corridor pf City-County Building. S upported by Dane Cpunty Cultural Affairs Commission; and “Old Mac son Throughthe Eyes of Young Madison,” art conta and exhibit in storefronts on the Square, sponsoredby Historic Madison, Inc.