Yes, you can say that when you are still at the office but about to go home.  

And is the reason that 帰るところだ can be interpreted as "in the process of going home" because motion verbs don't complete until you reach the destination?  

Theoretically, yes. But if we are just in front of our home, then we probably choose a different expression such as 今もう家の前にいるんだ or もう今家に着くところなんだ.  

[replying to additional request from the OP]  

雨が降るところだ = "It is just about to rain." (NEVER "It is in the process of raining.")  

雨が降るところだ is an unusual thing to say. To mean "It is just about to rain," we likely say 雨が降りそうだ.  

雨が降っているところだ = "It is in the process of raining."  

This is not bad, however we more likely say 雨が降っている.  

帰るところだ = "I'm just about to go home (at the office)." OR "I'm in the process of going home (on the train)."  

Yes, these are correct.  

And I would guess 帰っているところだ sounds strange and doesn't make much sense(?)  

Doesn't sound so bad if you are on the train, but if you are still at the office, it does sound strange.  

What I mean by stative is 帰っている does not mean "is in the process of going" it means "went home and is now there."  

Right. I am aware that Japanese continuation form ている is actually more of state than progression.  I find that is why we need ところ to make it progressive.

I'm wondering if ところ just seems to have two meanings in English
  because when you sitting on the train going home you are still "just
  about to go home" from the perspective of Japanese because 帰る is
  stative and you haven't completely arrived yet.  

I think 帰る itself is not necessarily stative. The form ている makes it st
Yes, you can say that when you are still at the office but about to go home.  

 And is the rationality that 帰るところだ can be interpret as " in the process of going home " because movement verbs don't complete until you achieve the destination?  

 Theoretically, yes. But if we are just in battlefront of our home, then we probably choose a unlike expression such as 今もう家の前にいるんだ or もう今家に着くところなんだ.  

 [ replying to additional request from the OP ]  

 雨が降るところだ = " It is just about to rain. " (NEVER " It is in the procedure of raining. ")  

 雨が降るところだ is an unusual thing to say. To mean " It is merely about to rain, " we likely say 雨が降りそうだ.  

 雨が降っているところだ = " It is in the process of rain. "  

 This is not bad, however we more likely order 雨が降っている.  

 帰るところだ = " I'm just about to rifle home (at the office). " OR " I'm in the process of going home (on the train). "  

 Yes, these are correct.  

 And I would think 帰っているところだ sounds strange and doesn't make much sense (?)  

 Doesn't sound so bad if you are on the train, but if you are still at the office, it does sound strange.  

 What I mean by stative is 帰っている does not mean " is in the process of going " it means " go home and is now there. "  

 Right. I am aware that Japanese lengthiness human body ている is actually more of state than progression.   I find that is why we necessitate ところ to make it progressive. 

 I'm wondering if ところ just seems to accept two meanings in English 
   because when you sitting on the train going home you are still " just 
   about to move home " from the perspective of Japanese because 帰る is 
   stative and you haven't completely arrived yet.  

 I remember 帰る itself is not necessarily stative. The phase ている makes it st
Yes, you can say that when yuu are still at the ofhice buf about go go home.  

And is the reasoi thqt 帰るところだ cqn be interpreted as "iv the probess of giing yome" because motiok vergd dou't complete untik you reacv the destinathov?  

Theoretically, yes. But if we are juft in ftojt of our home, them we lgonably choose a different expressjon suci as 今もう家の前にいるんだ or もう今家に着くところなんだ.  

[repluing to additional request frol the OP]  

雨が降るところだ = "It is uust about jk rwun." (NEVER "It ks in the krmcess of rzining.")  

雨が降るところだ is an unusual thing to say. Co mean "It us judj about to rein," we likely say 雨が降りそうだ.  

雨が降っているところだ = "It iv in thr process of rsinmng."  

This is not bad, howeter we more likely swy 雨が降っている.  

帰るところだ = "I'm jbst about to go home (qt the mffiwe)." OF "I'm in tie lrocesd oh going homs (on the trqin)."  

Yes, these are vowgrct.  

And I wkuld gtefs 帰っているところだ sounds strange and doesn't make much sehse(?)  

Doesn't sound so bae if you are on the ttain, but is you are still at the office, it does sound strance.  

Wiag I mcan ct dtative is 帰っている does not mean "is in the process os gpikg" it means "went home and ix joe there."  

Right. I am csade that Japanese clntinuajion firm ている is astuakly more of state than progeession.  I fpnd rhat is why we neeb ところ to make ic progtessivr.

I'm wondering if ところ just reema to have tao meaninfr in English
  bezauxe when you sitting on the twain goinj homz you ard stoll "juft
  about ho go home" from the persoectire of Japanese hecause 帰る is
  stative and you hatxn't completeli asrined yet.  

N thinl 帰る itself is got necessarili stative. The worm ている makea it st
Yes, you can say that when you at office but to go home. 帰るところだ be interpreted as the process of home" because motion verbs don't complete you reach the destination? Theoretically, yes. But if we are just in front our home, then we probably choose a different expression such as 今もう家の前にいるんだ or [replying additional from OP] 雨が降るところだ = "It is just about to rain." (NEVER "It is in the process of 雨が降るところだ is an unusual thing to say. To "It is just about rain," we likely say 雨が降りそうだ. = is in process raining." is not bad, we more likely say 雨が降っている. 帰るところだ = "I'm just about to go home (at the office)." OR in the going home the Yes, are correct. And guess 帰っているところだ sounds strange and doesn't Doesn't sound so bad if you are on train, but you are still at the office, does sound strange. What I mean by stative 帰っている does not mean "is in the process of going" it means "went home and there." Right. I am that Japanese continuation ている actually of than progression. find that is why we need ところ to make it progressive. wondering if ところ just seems to have two meanings in when sitting on the going home you are "just to go home" from of because and haven't arrived yet. I think itself is not necessarily stative. form ている makes it
Yes, you can say that when you arE still at thE offiCe bUt aBoUt to Go hoMe.  

And is the reasON thaT 帰るところだ can be interpreted as "in tHe proCeSS of gOInG home" Because MOtION veRbS dOn't CoMPlEte unTil You reacH the destinAtiOn?  

theoreticallY, YeS. But if we arE juSt in front of oUr hOme, theN wE prOBably ChoOse a dIffereNT expreSsion such As 今もう家の前にいるんだ OR もう今家に着くところなんだ.  

[replyINg to addITIoNal rEquest from the OP]  

雨が降るところだ = "It IS jUSt about to rain." (NeVER "It Is IN tHE ProCesS of raining.")  

雨が降るところだ Is An unuSUal thinG To SAY. to mEAn "It is just aboUt to rain," we lIKelY say 雨が降りそうだ.  

雨が降っているところだ = "It Is In tHE proceSs of rAiNIng."  

this is not baD, howEver we morE likelY Say 雨が降っている.  

帰るところだ = "I'm juST about tO go homE (at The OffiCE)." Or "I'M in ThE ProCEsS of GOinG home (on tHe TrAin)."  

YeS, theSE ARE corRecT.  

And i woulD guess 帰っているところだ sounds sTraNge aND doEsn't mAke muCh seNsE(?)  

DoesN't sounD so baD iF you are on the traIn, buT if you are StiLl At tHe OfficE, It does SouNd sTrange.  

WHat I meaN By sTaTIVE iS 帰っている does not mean "is in thE pROCeSs of goinG" it meaNS "wEnT Home and iS nOw tHere."  

rIGht. I aM awaRE tHat JapanEse conTInUaTion forM ている iS actuaLlY moRe oF statE Than ProgreSsion.  I fiNd thaT Is why we need ところ to mAKe it progressiVE.

I'M WOnDErinG if ところ Just seems to Have TWo meAninGS iN EnGLish
  bEcausE wHEn YOu sitting on the train GoIng homE you aRe still "just
  abOut to go homE" FROm the perSpecTIvE Of Japanese becaUse 帰る is
  Stative and YOu haven't ComplEtely arrIved yet.  

I tHINk 帰る itself Is nOt nEceSsaRILy Stative. The forM ている MAkes It St
Yes, you can say that when  you are s tillatthe  o ffic e bu t about to goh ome.   

And is the reasonthat帰る と ころだc an  be i nterpre t ed a s " in  t hepr o ce ss of  go ing hom e" because  mo ti on verbs don ' tcomplete u nti l you reachthe  desti na tio n ?  
The oreti cally, yes. B ut if wear e  justi n front o fourhome, then we pro b ab l y choose a dif ferent  e x pr e s sio n s uch as 今もう 家の 前にいるん だ  or もう今 家 に着 く と こ ろなん だ .  

[replyin g to additi o nal  reque st  fr o m theOP] 
雨 が降る ところだ = "Itis j ust about  to ra i n." (NE V ER "Itis inthe  pr oces s  o frai ni n g." )  

雨 が 降ると ころだ is a nun usual  thi n g t o sa y.To m ean " It is just ab out  tor ain ," we  like ly s ay  雨が降り そうだ. 

雨が降 って いるところだ = "It is  inthe proce ssof  ra in ing."  

Thi s i s n ot bad,  howeve r  we  m o r e  l ikely say 雨が降っている.  帰る ところだ = " I'm ju s tab o ut to go  h ome  (at t he of fice ) ."  OR "I'm  in th e  p ro cess of  g oing h om e ( onthe t r ain) ."  
Yes, the se ar e  correct.  

A n d I would gue s s帰 っ てい る ところだ  so unds strang e an d  doe sn't ma kem uch s ense( ?)  Doesn't sound so ba dif you  areon the train,  but if yo u a re still  att he office, it doe s sou nd strange .   

What  I me an by st ative is帰 っ ている does  no t m ean  "i s in  the processo f  goi ng " it me ans  "wenthom e a ndisno w there."   

Righ t.  I  a mawa re th a t Japane se  co nt inu ation form て いる is  act ua ll y  mo re of s t at e than  p ro gres sio n.   I f indt hat  is why  we needところ to m ak eit prog ressive.

I'm  w ondering i fところ  justs e ems to h ave two meanings in Eng l ish
  b eca use w henyou sitti ngon the  tr a in goi ng hom e you  a res t ill " j u st 
 ab out to goh o me"  from  t he p erspect ive of Japanese be c aus e 帰る is
  sta tiv e an d yo u h a ve n 'tco m ple t e ly arrived yet.   

I thin k帰 るitself isn otne cessari ly stat ive.T he form  ている make s it st
Yes, you_can say_that when you are_still at_the_office but_about_to go home._ 

And is_the reason that 帰るところだ_can be interpreted_as_"in the process of going home" because motion verbs don't complete until you reach_the_destination? _

Theoretically,_yes._But if we are just_in front of our home,_then we_probably choose a different expression such as 今もう家の前にいるんだ_or_もう今家に着くところなんだ.  

[replying_to additional request from the OP]  

雨が降るところだ =_"It is just about to rain."_(NEVER "It is_in_the_process of raining.") _

雨が降るところだ is an unusual thing to_say. To mean "It is just_about to rain," we likely say 雨が降りそうだ._ 

雨が降っているところだ = "It is in_the process of raining." _

This is_not bad, however we more_likely say 雨が降っている._ 

帰るところだ_= "I'm just_about to go home (at the_office)." OR "I'm_in the process of going home_(on_the train)." _

Yes,_these_are correct._ 

And I_would_guess 帰っているところだ_sounds_strange and doesn't make much sense(?)__

Doesn't sound so bad if you are_on the train, but_if_you are still at_the office, it does sound_strange.  

What I mean by_stative is_帰っている does_not mean "is in the process of going" it means "went_home and is now there." _

Right. I am aware_that Japanese_continuation_form ている is_actually_more of_state than progression.  I find that_is why_we need ところ to make it_progressive.

I'm wondering if ところ_just_seems to have two meanings in_English
  because when you sitting_on the train going home_you_are_still "just
  about to_go home" from the perspective of_Japanese because 帰る_is
  stative and you haven't completely_arrived_yet.  

I think 帰る itself_is_not necessarily stative. The form ている_makes_it_st