Consisting of just two chambers, the underground burial part of the complex, although currently open to the public, would have been sealed from entry after the internment of the deceased. It is reached by a curved descending stairway from the south side of the courtyard, leading first into an antechamber then to the pillared burial (or coffin) chamber. Both of the chambers are very irregular in shape and lie on a strange axis, being approximately southwest to northeast. Throughout the following description, however, references within the two chambers will be to the symbolic/religious orientation, with entry being made from the east and progressing to the west, the rear wall of the burial chamber. The ceilings of the two chambers are also very irregular, not the usual horizontally flat surface but cut very unevenly, then plastered and smoothed for painting. The whole of the antechamber, also the far section and right-hand side of the burial chamber ceilings, are decorated as an overhanging vine arbour with large bunches of grapes to which the unevenness gives a sense of reality. It is this design which gives the tomb complex its modern name of "Tomb of the Vines".
Today the walls are protected by glass panels, which is a good thing, but which, alas, doesn't permit anyone to apreciate anymore all the charm of the monument (see ).

The entrance to the burial chamber lies on the left side of the courtyard. A curved descent of 44 roughly hewn steps leads to a depth of 12 meters with very little headroom. The last steps, which turn even more so, lead over a kind of threshold into the antechamber of the "House of Eternity". The wooden door and its door-posts, by which this area was originally closed, no longer exist. Once beyond the threshold the colours and decoration not meant to be seen by the living come alive.

The room, which measures approx. 3.50m by 2.50m, is roughly rectangular in shape with rounded corners, unlike the annotated drawing below (compare with the more realistic drawing above). The height of the chamber is an average of about 1.80m.

The ceiling is decorated with the spreading the branches of a grapevine laden with fruit. The extremely uneven ceiling actually curves down onto the walls, the vines and fruit extending to their upper portion. With the rounded wall corners and the down-curve of the ceiling, the total decoration seems to flow from one to the other. The unevenness of the ceiling adds charm and a sense of reality to the vineyard decoration, with its random reddish tendrils and dark bunches of fruit. Wine is closely associated with the god Osiris, as "lord of Drunkenness at the Wag-Festival", the festival celebrated at the time of the grape harvest. In the main burial chamber beyond, bunches of grapes can even be seen hanging inside the Osiris shrine on the western end of the north wall. The link between Sennefer's responsibility for the garden of Amun, with its central vineyard, can now be appreciated.

The tops of all the walls, as already mentioned, are an extension of the ceiling, with bunches of dark grapes alternating with leaves. Under this, and separating it from the actual image area, is the usual Egyptian frieze of coloured rectangles. It should be noted that at the north-west corner, this band is much lower on the west wall, with the vines descending further. This was due to the ceiling height being much higher at this point, the horizontal band having been adjusted on the north wall to give just a single bunch of grapes above it. The corners at the west ends of the north and south walls are marked by the vertical Egyptian frieze, thus separating them from the imagery of the west wall.
The lower part of the wall, the dado area, is white. This is separated from the image area above by only a single red band, edged with black. Much of it is now lost, together several large areas of the main decoration.

On immediately turning right on entry to the antechamber, two images of Sennefer can be seen standing back to back, one is now, however, badly damaged. They face the two processions (of two registers each) of offering bearers who progress towards the respective seated images of himself (as if by magic). The text above the complete image of the deceased states: "Entering in peace into the Necropolis, after having achieved an old age, to join the favoured of Amun-Ra, in peace, in peace, Mayor of the Southern City, Sennefer, justified." (see ).
From the left image he can be seen holding his long staff of office in his right hand, whilst in his left (which hangs at his side) he holds a folded piece of cloth. The right-hand image shows that there is nothing in the hand which he holds down at his side. Around his neck he wears a broad gold necklace and additionally the pendant with the two hearts, here, as usual, made of a gold and a silver. He has gold bracelets on both wrists and upper arms. His upper torso is naked, but he wears a long semi-transparent skirt over his short white kilt. He has a short beard, typical of deceased officials, as in all the images in this chamber.

In the anticlockwise (north) direction, starting at the complete image of Sennefer (seen above), two registers of porters carry grave goods towards the seated figure of Sennefer, who is located at the western end of the north wall (see ).

Seated on a chair with a high back-rest, Sennefer again wears a short white kilt, but this time the semi-transparent overgarment includes a vest which also covers the upper parts of his arms giving a pink tone to his dark skin. He only has upper arm bands, no wrist bands. With his broad gold necklace the double heart amulet appears to be only of silver, but this could have been an error of the artist. He holds the long staff on his left hand and the sekhem-sceptre in his right. The text above him, states: "An offering which the king gives to Amun-Ra, the Lord of the Thrones of the Two Lands, to Osiris, the great god, the Lord of Eternity, to Anubis, to Imiut, the Lord of Ta-Djeser: 'May they grant the going out and coming in by the door of the passage (Rosetau) to the ka (= soul) of the favourite of the beautiful god, (to the ka) of the Mayor of the Southern City, Sennefer, justified'.".
"Imiut" was the god of mummification, his name means "He who is in his wrappings". He was not generally depicted in art, instead he is represented by the Imiut fetish which was used during the mummification process and may have been linked with his mummy wrappings. "Ta-djeser" literally means "sacred land", which refers to the necropolis, namely that of Abydos. "Rosetau" was originally the name of the Memphite necropolis, but later it came to signify a specific part of the Netherworld.
Behind Sennefer stands his daughter, named as Muttuy, in a tight white dress with shoulder straps. She wears a long black wig and a broad blue necklace. She embraces him by placing her left arm on his shoulder whilst holding his right upper arm. She is identified as: "His daughter, whom he loves, the chantress of Amun, Muttuy"

Immediately facing Sennefer, the two registers of porters both start with a pile of already delivered goods. Unlike on the south wall, described below, the porters are not identified as priest, in fact there is no identifying text. The small text above the second porter of the upper register, only states: "Mayor Sennefer".
The already delivered goods, placed on a small table at the start of the upper register, is a necklace and two bracelets. The porters in turn carry: two necklaces, sandals, a band of material, two funerary statuettes, a cartonnage mask, a heart-shaped vase, two chests and a basket. Five columns of text, which start at the north-east corner and continue in the area of the two porters carrying the chests (located on the east wall), says: "Following all the good things into the tomb, as is done for the first friend, the Mayor of the Southern city, the one favoured by the good god (the king), Sennefer; the favourite of Amun, the mayor who spends his time in joyous quality, buried among the favoured".
At the start of the lower register, the goods placed in a much larger pile are: vegetables, baskets of grapes, the thigh of an ox and vases. Next to the pile a priest makes a libation offering. This part of the scene is now badly destroyed, but was fortunately recorded by Virey. On the north wall section, two porters carry a variety of vases, the last one holding a large vessel on his shoulder. As on the upper register, some text is located at the corner with the east wall, immediately followed by another porter and a short column of text. However, this area was badly damaged even at the time of Virey. Finally, on the east wall, two porters carry a wooden bed.

In the clockwise direction (south) the scene is damage around the entry doorway and the left-hand end of the south wall. A large piece is also missing from in front of the seated Sennefer, which destroys most of the standing image of his daughter Muttuy, who offers to him two necklaces. The one closest to Sennefer is of colourful beads with a heart-shape pendant, probably made of blue lapis lazuli (see ). Most of her identifying text is now lost, but Virey's line drawing contains this missing portion of the wall, which states: "His daughter, whom he loves, who is seated in his heart, the chantress of Amun, Muttuy".
Sennefer, who has the short beard, as elsewhere, is seated on a chair with a low backrest. As on the facing wall, he wears the white kilt and semi-transparent vest and long skirt. His arms are adorned with upper armlets and wrist bracelets. Around his neck is a broad necklace, but there is no double heart pendant. The sekhem-sceptre, which he holds in his right hand, is his symbol of high rank.
The text above him, identifies him as: "Prince and count, firm in favour and well-beloved, Mayor of the Southern City, superintendent of the granaries of Amun, superintendent of the cattle of Amun, Sennefer, justified".
The two registers behind Muttuy include several porters, identified as priests, bearing offerings. The five in the upper register hold "Pure breads of Amun of Karnak, of Atum-Ra, of Osiris, of Anubis, of Hathor for the ka-soul of Sennefer". In the lower row they bring palm shoots, strips of cloth, and a haunch of beef. The third priest, now badly damaged and difficult to see (but recorded by Virey), raises an incense vessel in his left hand and pours a libation on to the small altar in front of him. The offering of the fifth is lost, even to Virey, but it was possibly the representation of a heart. All the items of lower register are essential for the regeneration of life to the deceased. The palm shoots, , symbolise renewal of life in nature; the material, symbolises the enveloping land which germinates seeds, by the combined action of humidity and heat represented by the libations and incensement of the third priest; the thigh of a bull, symbolises regenerative power and finally the heart for the one to be regenerated.

On the right and left of the doorway which leads from the antechamber to the main chamber of the lower tomb and which represents the passage from this world to the next, are two scenes of worship facing each other. View shows the present aspect, with the glass panel protection. The actual door which would have closed this passage has long since disappeared. Either side of the doorway stands Sennefer and behind him, his wife, identified as Senetneferet. Sennefer is dressed as found on the north and south walls, whilst his wife is dressed identically to the daughter Muttuy, including the long black wig and broad blue necklace. The paintings which were above the doorway are destroyed and also missing from Virey's drawing, but it can easily be imagined that the gods which were the target of Sennefer's attention were represented here. On the right-hand side, the line of a text, whose beginning is destroyed, indicates that the divinity was Osiris of Abydos, invoked by Sennefer to greet the sunrise in the east. The divinity on the left, which would have been seated back to back to the first, could also have been Osiris but it may have been Anubis, only this time facing towards the west.

On the right side, Sennefer makes an invocation to the god Osiris. His hands and whatever he held in them (if anything) is missing. Behind him stands his wife Senetneferet, holding a sistrum in her left hand. Her right hand is raised, palm forward, with the menat-necklace in the bend of the elbow (see ). Behind her is a chair on a raised dais; in front of her is a table carrying the offerings and a flower which blooms between two flowers buds. The text says: "[Greetings to you, oh thou august god, Osiris, master of Rosetau, ] great in Abydos, the sovereign who reigns eternally! Come to greet the splendours of the rising star (i.e. the sun) during every day, [says] Mayor Sennefer, justified, and the mistress of the house, the king's wet-nurse, the lady Sen[et]nefer[et], justified.". On this occasion, her name is actually written as Sennefer, without the two "t"s.

On the left side, the most complete, opposite the second god, Sennefer again stands and makes the invocation; behind him again is his wife, also standing and holding a sistrum with her right hand whilst with her lowered left hand she holds a menat-necklace (see ). The text says: "[He] makes [worship to……], the overseer of the granaries of Amun, the overseer of the herds of Amun, the overseer of the garden of Amun, the one who satisfies the king's heart, through whom he is great in the city, Sennefer, justified. His companion, whom he loves, mistress of the house, chantress of Amun, Senetnefer[et], justified.". Here, her name is actually written without the ending "t".

In the middle of the west wall, which was once delimited by a door, a small passage, only 1.35m high and 1.20m wide, opens into the famous pillared hall, the burial/sarcophagus chamber.

For some inexplicable reason, parts of already decorated sandstone blocks were integrated into this passageway by Sennefer, probably from the upper cult complex, especially the facade. None of the blocks are in a good condition and the texts are hard to read.

has a decorated block which fills approximately the west-most half of the surface (see ), that part closest to the pillared chamber. It includes the heads of Sennefer and either his wife or daughter, and several columns of text, located above them. The bottom edge of this block lies towards the pillared chamber. The surviving text includes the titles: "Mayor of the Southern City, overseer of the granaries of Amun, overseer of the fields of Amun, overseer of the garden of Amun, overseer of the cattle of Amun".

The first of these, on the left, does not reach the full height of the passage. It consists of the bottom of three columns of text, placed vertically. They end three lists of offerings, the two on the right are to "the Mayor of the southern City" - the name is missing, the other is to "the royal nurse" - her name is also missing.

The other block is similar to that on the ceiling, again with two heads. This isn't placed horizontally but with the original top edge (which contains traces of a khekher frieze) towards the pillared hall. The surviving text states: "who directs him by night as by day, who does not weary with regard to that which has been placed upon him, to whom has been given the two hearts of silver and gold which were tied around his neck in the presence of the whole land, the Mayor of the Southern City and superintendent of the granaries of Amun, Sennefer, justified.". A further text column exists after this.

The first of these, on the right, does not reach the full height of the passage. It is rotated through 90°, with the top being at the antechamber end. The content which remains is of Sennefer standing in front of a pile of offerings, on top of which is a lotus blossom. The small text, situated between the deceased and the offerings, simply states: "the Mayor of the Southern City, superintendent of the granaries of Amun".

The other block extends the full height of the wall, and consists of two columns of text. However the block has been inserted upside down.
One column ends a list to the ka of Sennefer as "the Mayor of the Southern City, superintendent of the granaries of Amun".
The other finishes with wine and beer for vigour to the ka of the wet-nurse of the king", his wife.