| Building Abbr. | Name | Number | Occupied | Zone |
|---|---|---|---|---|
| M01 | RANCH PUMP BUILDING | APH2 | 1975 | None |
| M02 | INT.WATER XFER.PUMP BLDG. | APH3 | 1972 | None |
| M03 | FIRE PUMP & CHLOR. BLDG. | APH4 | 1972 | None |
| M04 | WEIGHT ROOM | A0AG | 1956 | None |
| M07 | PHYSICAL PLANT/FIRE TRUCK BLDG | A0FS | 1984 | None |
| M10 | PUMP HOUSE GARAGE | A0PG | 1943 | None |
| M13 | ASTRONOMERS LODGE | A0TQ | 1968 | None |
| M14 | RADIO REPEATER SHACK | A0TV | 1976 | None |
| M15 | W.L.MOODY CENTER | A0VC | 1980 | None |
| M16 | MCD - DAVID BOOTH DIRECTOR'S HOUSE | A00A | 1937 | None |
| M17 | HOUSE B AND GARAGE | A00B | 1936 | None |
| M18 | HOUSE C | A00C | 1935 | None |
| M19 | PHYSICAL PLANT SHOP BLDG. | A00D | 1936 | None |
| M20 | HOUSE E | A00E | 1937 | None |
| M21 | HOUSE F AND GARAGE | A00F | 1937 | None |
| M22 | COTTAGE | A00G | 1937 | None |
| M23 | HOUSE H | A00H | 1937 | None |
| M24 | HOUSE I AND GARAGE | A00I | 1944 | None |
| M26 | HOUSE L | A00L | 1951 | None |
| M27 | WELL PUMP BUILDING | A00P | 1933 | None |
| M28 | STORAGE BUILDING R | A00R | 1967 | None |
| M31 | 30" TELESCOPE DOME BLDG. | A030 | 1971 | None |
| M32 | 36" TELESCOPE DOME BLDG. | A036 | 1956 | None |
| M33 | 82" TELESCOPE DOME BLDG. | A082 | 1935 | None |
| M34 | HARLAN J. SMITH TELESCOPE | A105 | 1968 | None |
| M35 | HOUSE AND GARAGE NO 1 | A201 | 1974 | None |
| M36 | HOUSE AND GARAGE NO 2 | A202 | 1974 | None |
| M37 | HOUSE AND GARAGE NO 4 | A203 | 1974 | None |
| M38 | HOUSE AND GARAGE NO 5 | A204 | 1974 | None |
| M39 | HOUSE AND GARAGE NO 6 | A205 | 1974 | None |
| M40 | HOUSE AND GARAGE NO 7 | A206 | 1974 | None |
| M41 | HOUSE AND GARAGE NO 8 | A207 | 1974 | None |
| M42 | HOUSE AND GARAGE NO 9 | A208 | 1974 | None |
| M43 | HOUSE AND GARAGE NO. 10 | A209 | 1974 | None |
| M44 | HOUSE AND GARAGE NO. 11 | A210 | 1974 | None |
| M45 | HOUSE AND GARAGE NO. 12 | A211 | 1974 | None |
| M46 | HOUSE AND GARAGE NO. 13 | A212 | 1974 | None |
| M47 | HOUSE AND GARAGE NO. 14 | A213 | 1974 | None |
| M48 | HOUSE AND GARAGE NO. 15 | A214 | 1974 | None |
| M49 | HOUSE AND GARAGE NO. 16 | A215 | 1974 | None |
| M50 | HOUSE M | A216 | 1974 | None |
| M51 | HANGER 18 (STORAGE BUILDING) | A220 | 1990 | None |
| M52 | VISITOR CENTER STORAGE BUILDING | A221 | 1991 | None |
| M53 | HOBBY-EBERLY TELESCOPE (T005) | A222 | 1996 | None |
| M54 | HOUSE AND GARAGE NO.3 | A254 | 1998 | None |
| M55 | HOUSE AND GARAGE NO.17 | A255 | 1998 | None |
| M56 | HOUSE AND GARAGE NO.18 | A256 | 1998 | None |
| M57 | HOUSE AND GARAGE NO.19 | A257 | 1998 | None |
| M58 | HOUSE AND GARAGE NO.20 | A258 | 1998 | None |
| M59 | MOBILE HOME NO.1 (2 BDRM) | A259 | 1999 | None |
| M60 | MOBILE HOME NO.2 (2 BDRM) | A260 | 1999 | None |
| M61 | MOBILE HOME NO.3 (2 BDRM) | A261 | 1999 | None |
| M62 | MOBILE HOME NO.4 (3 BDRM) | A262 | 1999 | None |
| M63 | FRANK N BASH VISITORS CTR AT MCD | A263 | 2002 | None |
| M64 | MRLS LASER RANGING STATION (NASA) | A264 | 2000 | None |
| M65 | MRLS ANNEX - STORAGE (NASA) | A265 | 2000 | None |
| M66 | MRLS OFFICE (NASA) | A266 | 2000 | None |
| M67 | HET SUPPORT BUILDING | A267 | 2001 | None |
| M68 | EDUCATION CENTER TELESCOPE DOME 1 | A268 | 2002 | None |
| M69 | EDUCATION CENTER TELESCOPE DOME 2 | A269 | 2002 | None |
| M70 | MOODY CENTER 14" TELESCOPE BUILDING | A270 | 1995 | None |
| M71 | MOODY CENTER 16" TELESCOPE BUILDING | A271 | 1995 | None |
| M72 | MONET DOME BUILDING | A272 | 2004 | None |
| M74 | BLOOM HOUSE | A274 | 2008 | None |
| M75 | BOSTON DOME & CONTROL BLDGS | A275 | 2014 | None |
| M76 | TRANSFORMER BLDG | A276 | 2004 | None |
| M77 | EDUCATION CENTER TELESCOPE DOME #3 | A277 | 2002 | None |
| M78 | HET MECHANICAL BUILDING | A278 | 1996 | None |
| M79 | HET WEATHER STATION | A279 | 1996 | None |
| M80 | WATER TREATMENT BUILDING | A280 | 2013 | None |
| M81 | PHYSICAL PLANT SUPPORT BUILDING | A281 | 1999 | None |
| M82 | NEXUS HAUS | A282 | 2017 | None |
| M83 | MOBILE HOME NO. 5 (2 BDRM) | A283 | 2016 | None |
| M84 | MOBILE HOME NO. 6 (2 BDRM) | A284 | 2016 | None |
| M85 | POOL SUPPORT BUILDING | A285 | 1981 | None |
| M86 | CP451801: VLBI ELECTRONIC SHELTER | A286 | 2020 | None |
