4253 Perry Street is a level 6,340 square foot lot in the heart of Berkeley, roughly 50 feet wide and 127 feet deep, with street access at the front, alley access at the rear, mature landscaping, and a deep open rear third. Held by one family since 1976. In a neighborhood where most remaining land has been split or narrowed, a conforming full lot is increasingly rare.FOR THE OWNER WHO WILL BUILDThe buyer we expect first has already decided on this neighborhood, will hire an architect and a builder, and wants to design the home rather than shop for one. Berkeley has little left to offer that buyer. The lot is level and full width, the alley carries the cars, and there is no overlay review to design around: a full-width envelope, a real basement, and a guest house or studio at the back.FOR THE BUILDER OR DEVELOPERThe same site underwrites cleanly on spec. Full lot, level and rectangular, vacant with no tenant and no showing restrictions, public water and sewer, no HOA, no overlay. The comparable set below is dense and recent, the ADU is permitted by right rather than by variance, and the structure is offered as is and priced accordingly.WHAT YOU CAN BUILDThe property is zoned U-SU-C, following Denver's citywide accessory dwelling unit ordinance effective December 2024. That district allows 2.5 stories and 30 feet across the front 65 percent of the lot depth, a 37.5 percent coverage cap, five-foot side setbacks, and a 12-foot rear setback where an alley is present. Applied here, the presumptive by-right envelope is a primary residence of roughly 4,500 to 5,000 finished square feet including a full basement, plus a detached accessory dwelling unit of up to 864 square feet, 24 feet and 1.5 stories, in the rear third.WHAT THE BLOCK HAS ALREADY DONEThirty-eight new homes have closed within a half mile in five years. Twenty-two sit on full-size lots like this one, at a median of 4,240 finished square feet and $2,142,500, and nine included an accessory dwelling unit. Two-tenths of a mile north on Perry Street, a 2024 custom build of 3,980 square feet with a six-bedroom plan, a heated three-car garage, and a one-bedroom ADU closed at $2,165,000. The contemporary two-story next door makes the same point from the sidewalk.THE LOCATIONTennyson Street is a short walk west, with independent restaurants, coffee houses, breweries, a seasonal market, galleries, and the Oriental Theater. Berkeley Lake Park and Rocky Mountain Lake Park sit within walking distance in opposite directions, two lakes and roughly a hundred acres of park. Walk Score 92. Downtown Denver is four miles southeast.THE EXISTING HOMEAn 1896 cottage of 839 square feet above grade, a full basement of 839 finished square feet below, one bedroom and two baths, forced-air heat, and a parking slab for two cars. No garage. Long a rental, offered in original condition, sold as is and priced accordingly. Vacant, so the site can be walked with your architect or builder at any time.BUYER DUE DILIGENCEBuyer and buyer's advisor are solely responsible for independently investigating and verifying every item stated here, including lot area and dimensions, zoning, permitted uses, building capacity, coverage, height, setbacks, accessory dwelling unit eligibility, demolition and permitting requirements, soils, utilities, schools, and taxes, with Denver Community Planning and Development and other qualified professionals. Zoning, envelope, and comparable sale figures are shared as a professional courtesy only. They are not a representation or warranty by the seller or the brokers and must not be relied upon. No representation is made as to what may be built, at what cost, or on what timeline.839 sq ft above grade · 839 sq ft finished basement · built 1896 · 6,340 sq ft lot · street and alley access · no HOA. Information deemed reliable but not guaranteed. Equal Housing Opportunity.