Hello everyone! I am a newbie here.
I have been following discussion on Pentas for a while and would like to share my detailed estimate of Pentas 1 and Pentas 3.

It's possible to measure fairly accurately the builtup just using the floor plan.

Method used:
- Calculate the outer rectangle of the built up from the floor plan to get the gross built up for the floor.
- Finetune the built up calculation by deducting unbuilt areas or additing protruding built areas.
- if measurement is not given, a good estimate can be calculated by following method:
- take ruler to measure the length of the desired measurement= A
- take ruler to measure the length of a measurement that is given in the floor plan - B
- estimated length= A/B * measurement given for B

PENTAS 3 BUILT UP ESTIMATE FROM FLOOR PLAN

1ST FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET * 59.5 FEET

Hello everyone! I am a newbie here.
I have been following discussion on Pentas for a while and would like to share my detailed estimate of Pentas 1 and Pentas 3.

It's possible to measure fairly accurately the builtup just using the floor plan.

Method used:
- Calculate the outer rectangle of the built up from the floor plan to get the gross built up for the floor.
- Finetune the built up calculation by deducting unbuilt areas or additing protruding built areas.
- if measurement is not given, a good estimate can be calculated by following method:
- take ruler to measure the length of the desired measurement= A
- take ruler to measure the length of a measurement that is given in the floor plan - B
- estimated length= A/B * measurement given for B

PENTAS 3 TYPE A1 BUILT UP ESTIMATE FROM FLOOR PLAN

GROUND FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 59.4 FEET (LENGTH)
- 5 FEET * 15 FEET (UNBUILT AREA AT THE BACK OF HOUSE BESIDE BATH 4 & 5)
- 4 FEET * 20 FEET (UNCOVERED TERRACE AREA IN FRONT OF LIVING HALL)
= 1330SF

FIRST FLOOR BUILT-IN
= 25 FEET (WIDTH) * 59.4 FEET (LENGTH)
- 5 FEET (WIDTH) * 12 FEET (LENGTH) (UNBUILT AREA AT THE BACK BESIDE BATH 2 & 3)
- 3.5 FEET (WIDTH) * 11 FEET (LENGTH) (VOID AREA BESIDE FAMILY AREA)
- 15 FEET (WIDTH) * 2.5 FEET (LENGTH) (UNCOVERED AREA IN FRONT OF MASTER BEDROOM)
= 1439 SF

PENTAS 3 TYPE A1 TOTAL BUILT-IN (WITH ROOF AND WALL COVER)= 1330 + 1439= 2679 SF

PENTAS 3 TYPE A1 EXTERNAL BUILT-UP AREAS (OPEN AREAS WITH ROOF COVER)
= 20 FEET (WIDTH) * 4 FEET (LENGTH) (TERRACE IN FRONT OF LIVING HALL)
+ 5 FEET (WIDTH) * 5 FEET (LENGTH) (TERRACE AT THE BACK OF GUEST ROOM)
+ 22 FEET (WIDTH) * 14 FEET (LENGTH) (CAR-PORCH)
= 413 SF

PENTAS 3 TYPE 1 TOTAL BUILT-UP (ALL AREAS WITH ROOF COVER)= 2679 + 413= 3092SF !!
NOTE: AREAS EXCLUDED IN CALCULATION ARE AIRCON LEDGE AND YARD AT THE BACK OF KITCHEN WITH NO ROOF COVER (ABOUT 70SF).


NOW FOR PENTAS 1 BUILT-UP CALCULATION

GROUND FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 60 FEET (LENGTH)
- 5 FEET (WIDTH) * 8 FEET (LENGTH) (GUEST ROOM BACK TERRACE)
- 8 FEET (WIDTH) * 5 FEET (LENGTH) (FOYER)
- 10 SF (SMALL UNBUILT INDENTED AREA IN FRONT OF LIVING HALL)
= 1410 SF

1ST FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 60 FEET (LENGTH)
- 30 SF (AIRCON LEDGE BEHIND BEDRROOM 2 & 3)
- 20 SF (VOID AREA AT COVER IN FRONT OF MASTER BATHROOM)
- 5 SF (UNBUILT INDENTED AREA IN FRONT OF MASTER BEDROOM)
- 7 FEET (WIDTH) * 12 FEET (LENGTH) (VOID AREA BESIDE FAMILY)
= 1361 SF

PENTAS 1 TOTAL BUILT-IN (WITH ROOF AND WALL COVER)= 1410 SF + 1361 = 2771 SF ( SLIGHTLY BIGGER THAN PENTAS 3 TYPE A1!)

PENTAS 1 EXTERNAL BUILT-UP (OPEN AREAS WITH ROOF COVER)
= 40 SF (GUEST ROOM BACK TERRACE)
+ 40 SF (FOYER)
+ 18 FEET (WIDTH) * 15 FEET (LENGTH) (CAR PORCH)
= 350 SF

PENTAS 1 TOTAL BUILTUP (ALL COVERED AREAS) = 2771 SF + 350 SF = 3121 SF

ABOVE ARE PURELY MY ESTIMATES BASED ON BEST EFFORT BASIS. PENTAS 1 TOTAL BUILTUP IS CLOSE TO DEVELOPER'S STATED BUILTUP OF 3152SF.
HOWEVER PENTAS 3 TYPE A1 TOTAL BUILTUP IS VERY FAR FROM DEVELOPER'S STATED BUILTUP OF 3500SF.
ANYONE CARE TO HELP CHECK MY CALCULATIONS????

HOPE THIS HELPS.





This post has been edited by dreamer89: Apr 14 2013, 09:14 PM

I have previously done a detailed estimate of Pentas 1 and Pentas 3 Type A1 Built-up.
I have copied my previous post below and then estimate the built up area of Pentas 4 for comparison purpose.

Method used:
- Calculate the outer rectangle of the built up from the floor plan to get the gross built up for the floor.
- Finetune the built up calculation by deducting unbuilt areas or additing protruding built areas.
- if measurement is not given, a good estimate can be calculated by following method:
- take ruler to measure the length of the desired measurement= A
- take ruler to measure the length of a measurement that is given in the floor plan - B
- estimated length= A/B * measurement given for B

PENTAS 3 TYPE A1 BUILT UP ESTIMATE FROM FLOOR PLAN

GROUND FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 59.4 FEET (LENGTH)
- 5 FEET * 15 FEET (UNBUILT AREA AT THE BACK OF HOUSE BESIDE BATH 4 & 5)
- 4 FEET * 20 FEET (UNCOVERED TERRACE AREA IN FRONT OF LIVING HALL)
= 1330SF

FIRST FLOOR BUILT-IN
= 25 FEET (WIDTH) * 59.4 FEET (LENGTH)
- 5 FEET (WIDTH) * 12 FEET (LENGTH) (UNBUILT AREA AT THE BACK BESIDE BATH 2 & 3)
- 3.5 FEET (WIDTH) * 11 FEET (LENGTH) (VOID AREA BESIDE FAMILY AREA)
- 15 FEET (WIDTH) * 2.5 FEET (LENGTH) (UNCOVERED AREA IN FRONT OF MASTER BEDROOM)
= 1439 SF

PENTAS 3 TYPE A1 TOTAL BUILT-IN (WITH ROOF AND WALL COVER)= 1330 + 1439= 2679 SF

PENTAS 3 TYPE A1 EXTERNAL BUILT-UP AREAS (OPEN AREAS WITH ROOF COVER)
= 20 FEET (WIDTH) * 4 FEET (LENGTH) (TERRACE IN FRONT OF LIVING HALL)
+ 5 FEET (WIDTH) * 5 FEET (LENGTH) (TERRACE AT THE BACK OF GUEST ROOM)
+ 22 FEET (WIDTH) * 14 FEET (LENGTH) (CAR-PORCH)
= 413 SF

PENTAS 3 TYPE 1 TOTAL BUILT-UP (ALL AREAS WITH ROOF COVER)= 2679 + 413= 3092SF !!
NOTE: AREAS EXCLUDED IN CALCULATION ARE AIRCON LEDGE AND YARD AT THE BACK OF KITCHEN WITH NO ROOF COVER (ABOUT 70SF).


NOW FOR PENTAS 1 BUILT-UP CALCULATION

GROUND FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 60 FEET (LENGTH)
- 5 FEET (WIDTH) * 8 FEET (LENGTH) (GUEST ROOM BACK TERRACE)
- 8 FEET (WIDTH) * 5 FEET (LENGTH) (FOYER)
- 10 SF (SMALL UNBUILT INDENTED AREA IN FRONT OF LIVING HALL)
= 1410 SF

1ST FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 60 FEET (LENGTH)
- 30 SF (AIRCON LEDGE BEHIND BEDRROOM 2 & 3)
- 20 SF (VOID AREA AT COVER IN FRONT OF MASTER BATHROOM)
- 5 SF (UNBUILT INDENTED AREA IN FRONT OF MASTER BEDROOM)
- 7 FEET (WIDTH) * 12 FEET (LENGTH) (VOID AREA BESIDE FAMILY)
= 1361 SF

PENTAS 1 TOTAL BUILT-IN (WITH ROOF AND WALL COVER)= 1410 SF + 1361 = 2771 SF ( SLIGHTLY BIGGER THAN PENTAS 3 TYPE A1!)

PENTAS 1 EXTERNAL BUILT-UP (OPEN AREAS WITH ROOF COVER)
= 40 SF (GUEST ROOM BACK TERRACE)
+ 40 SF (FOYER)
+ 18 FEET (WIDTH) * 15 FEET (LENGTH) (CAR PORCH)
= 350 SF

PENTAS 1 TOTAL BUILTUP (ALL COVERED AREAS) = 2771 SF + 350 SF = 3121 SF


PENTAS 4 BUILT UP CALCULATION
---------------------------------------


GROUND FLOOR BUILT-IN (AREAS WITH ROOF AND COVERED WALLS)
= 25 FEET (WIDTH) * 55.27 FEET (LENGTH)
- 6 FEET (WIDTH) * 4.5 FEET (LENGTH) (ENTRANCE TERRACE)
- 6 FEET (WIDTH) * 5 FEET (LENGTH) (BACK OF GUEST ROOM)
= 1325 SF

FIRST FLOOR BUILT-IN
= 25 FEET (WIDTH) * 59.2 FEET (LENGTH)
- 6 FEET (WIDTH) * 7 FEET (LENGTH) (UNBUILT AREA AT THE BACK OF BEDROOM 2)
- 6 FEET (WIDTH) * 3.5 (LENGTH) (BEDROOM 1 AIRCON LEDGE)
- 6.5 FEET (WIDTH) * 9 FEET (LENGTH) (VOID AREA BESIDE FAMILY AREA)
- 19.5 FEET (WIDTH) * 4 FEET (LENGTH) (UNCOVERED AREA IN FRONT OF MASTER BEDROOM)
= 1280 SF


PENTAS 4 TYPE TOTAL BUILT-IN (WITH ROOF AND WALL COVER)= 1325 + 1280= 2605 SF

PENTAS 4 EXTERNAL BUILT-UP AREAS (OPEN AREAS WITH ROOF COVER)
= 25 FEET (WIDTH) * 4 FEET (LENGTH) (TERRACE IN FRONT OF LIVING HALL)
+ 6 FEET (WIDTH) * 4.5 FEET (LENGTH) (ENTRANCE TERRACE)
+ 19.6 FEET (WIDTH) * 14 .5 FEET (LENGTH) (CAR-PORCH)
= 412 SF

PENTAS 4 TOTAL BUILT-UP (ALL AREAS WITH ROOF COVER)= 2605 + 412= 3017 SF

COMMENTS
--------------
- Developer states Pentas 4 builtup to be 2,962sf but estimate is bigger at 3017sf.
- Comparing Pentas 3 Type A1 builtup which developer states to be 3500sf, estimated Pentas 3 Type A1 builtup is only 3092sf.
- based on my estimate, Pentas 3 Type A1 is actually only about 75sf larger than Pentas 4 builtup, and no way close to the 3500sf-2962sf= 538sf claimed by developer.
The 75sf extra is mainly in the extra one study room upstairs. In fact, the ground floor for both types has almost similar builtup. I suspect Pentas 4 rooms will actually be bigger than Pentas 3
rooms because of the extra study room in Pentas 3 taking up space.
- my conclusion is Pentas 4 will look and feel as big as Pentas 3 Type A1 (which developer claims to be 3500sf), except that it does not have a study room. In fact, Pentas 4 master bedroom and other bedrooms may even be larger than Pentas 3 Type A1. Also, Pentas 4 ground floor will feel larger because of the open area design compared to Pentas 3 Type A1. Pentas 4 also has advantage of car porch columns being at border thus giving clearance of 25feet. I think Pentas 4 is a hidden gem and will surprise many with its spaciousness.

- which comes to the question on why I&P seems to sometimes underestimate and other times over-estimate its builtup. I observe what seems to be a trend that I&P will start with an underestimated or accurately estimated built up area and then progressively over-estimate the builtup of its next few launches, before resetting back again to a correct/slight underestimate.
My observation of this trend is as follows:
- ARCA - developer's stated builtup is smaller than actual builtup
- Karya - developer's stated builtup is larger than actual builtup to justify higher price. Yes, ARCA's builtup is actually larger than Karya contrary to what developer stated.
- Pentas 1 - developer's stated builtup of 3152sf is accurate and matches closely actual builtup. This sets the stage of a cycle of higher prices with higher perceived builtup as stated by developer.
- Pentas 2 - developer's stated builtup is larger than actual builtup to justify higher prices. Both Pentas 2 types are actually smaller than Pentas 1 builtup contrary to what brochure says.
- Pentas 3 - developer's stated builtup is exaggerated even more to be much larger than actual builtup. Pentas 3 Type A1 is exaggerated by about 400sf larger by my estimate!
This is done to justify further price increase, although both types of Pentas 3 builtups are smaller than Pentas 1.
- Now Pentas 4 - what happens?
Developer does a pricing reset to start a new cycle of pricing. Since the price of Pentas 4 is similar to Pentas 3 Type A1, developer must show that Pentas 4 is smaller than Pentas 3 Type A1 to
reflect a higher psf pricing. So, developer actually understates Pentas 4 builtup to be 2,962sf when in actual fact, its builtup is larger at about 3017sf. This gives developer room to state a
bigger builtup in future launches to justify higher prices (although the actual builtup may not be larger than Pentas 4!), similar to what happened to Pentas 1, 2 and 3 pricing cycle.

My 2 cents. any comments.

putting my money where my mouth is. buying a unit of pentas 4