Mesa Grande Ranch and Vineyard

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Located in the scenic and desirable San Diego backcountry community of Mesa Grande, a large plateau overlooking the Santa Ysabel Valley to the south and Lake Henshaw to the north, Diamond T Ranch and Vineyards and private winery offers the opportunity to practice a sustainable lifestyle on 40 usable acres of beautiful ranch land.

Mesa Grande, San Diego County’s premier cattle ranching area, features a vast expanse of open range land between 3,300’ and 4000’ in elevation where stately oak forests overlap with pine forests along the base of Angel Mountain and Black Mountain, cradled between the south and west slopes of the Volcan and Palomar Mountain Ranges. Mesa Grande is known for large open meadows connecting dense woodlands obscuring a sparse population of local denizens. The area features 4 distinct seasons, about 27 inches of rain annually, and an average high of 93o in August and 60o in January.

Approximately 3 miles off of Mesa Grande Road along a well-maintained unpaved ranch road that meanders through a dense canopy of mature trees, the oak dominated landscape gives way to a gently rolling meadow. Views to the north and west go on for tens of miles.

Diamond T Ranch and Vineyard has all of the necessary elements to practice a sustainable lifestyle, a gift worthy of passing on to future generations. Supplementing the two vertical water wells on the property is a large, relatively deep swimming pond/reservoir built into giant boulders. This beautiful water feature store the water used to irrigate the farming operation. Two 12,000 gallon water storage tanks supplement the large reservoir.


The 5 acre vineyard consists of approximately 750 Zinfandel and 840  Aglianico vines on a custom trellis system and drip irrigated. Wine is made and bottled on site at the private winery – itself a work of art. A wide range of fruit and vegetables are produced from plots and orchards on the ranch.

In addition to the cultivation of crops, the ranch presently runs a small cattle operation on approximately 20 acres.

The ranch is powered by public electricity. A sustainable supply of wood fuel is used as a supplemental heat source. Septic systems are installed for recycling sewage. Private wells on the property supply water for the ranch dwellings and livestock.

The unique and artistic main home is approximately 1841 square feet with 2 bedrooms and an optional 3rd bedroom or den. A custom kitchen includes a walk-in pantry and fully functional fireplace complete with rotisserie and grill. The home has forced air heating and two fireplaces with internal heat ducts to rooms. Two custom bathrooms feature custom rock and wood work, slate floors, a Jacuzzi tub, and spacious walk-in closet. Attached to, and situated below the home, is a spacious 735 square foot garage with laundry and storage space and an inside stairway to the kitchen. Large patios with endless views can be accessed from both ends of the home.

A studio guest home is located at the winery, and includes a bathroom and kitchenette.

The grape processing and winery building is an artistic structure under approximately 936 square feet. The craftsmanship and architecture are incredible. Large stones, beams, and iron work give this building a substantive ranch and vineyard feel.

The ranch barn is a 1760 square foot split level structure serving multiple ranching purposes, including a chicken coop, storage and animal care and feeding facility. Additional facilities include an 8,000 esf helicopter pad and a 30,000 esf arena area.

The Diamond T Ranch and Vineyard private estate is an ideal place to relax and renew. An easy one hour drive from nearly anywhere in San Diego County, and slightly longer from Orange and Los Angeles Counties, makes this an ideal get-a-way for the busy professional, resourceful entrepreneur, or pent-up naturalist to reconnect with nature and practice sustainable living.

The seller’s will consider financing your purchase with and acceptable offer.