Determining the Ambf Pso

Rule VII & Rule VIII of the Revised Implementing Ruloa:=~ and Regulations of' PD 1096 Arch./EnP. Rey S. Gabitan, uap, piep

((~

((~

Determlnlna the AMBF & PSO Page so

The following rules shall be observed in the determination of the Allowable Maximum Building Footprint (AMBF) for buildings and related habitable structures. If the stated rules are compared with (1) Rule VIII Table Vlll.l.- Reference Table on Percentage of Site Occupancy and Maximum Allowable Construction Area (MACA); (2) Rule VIII Tables Vlll.2. and Vlll.3. (setbacks, yards and courts); or (3) with the applicable stipulations under this Rule and with the applicable stipulations of the Fire Code, the more stringent but applicable regulation out of the aforementioned rules should be observed.

/1 Determlnlna the AMBF & PSO

((~

Example 2 A young bachelor has decided that his R-1 zoned property, with a Total Lot Area (TLA) of 450 sqm and located in Anti polo City, shall host his dream house. The Project Site is an inside lot, with a IS-meter wide frontage facing west. The Project Site uniformly slopes at I 0% towards the 14-meter wide street, i.e. the road-right of way (RROW) that is relatively flat and which has 2.0-m wide sidewalks (which includes a 0.80-m wide planting strip) at both sides. The surface at the center of the Project Site frontage is considered as elevation 0.0-m. A roofdeck shall be provided which will serve as a viewing and entertainment area for guests because of the magnificent view of the Manila skyline and the sunset.

R-1

What is the Allowable Maximum Building Footprint (AMBF) for the Project? What is the Maximum Percentage of Site Occupancy (PSO) for the Project?

((~

/1 Determlnlna the AMBF & PSO Example 2 AMBF

= I I x 23.5 = 258.5 sqm

PSO

=258.5/450 = 57.44% =55% 30 MTRS.

R-1

15 MTRS.

R.- 1, 450 sqm, inside lot, 15 mtn. frontage

/l o

etermlnlna the I T~

.......

,_

r ....,:-_,.;u:.,."T.:.-.,,..r,..,_~r«lll.OIA!N ... tnA1

,.,_~(tt;#,..yepplyb'to"dl ~

.........

Example 2

MIHI\ti)N

. . ''""':\It ......... _,., ..... ......... ..._............, ••• ......., .._ . ............ PERCEJfTAOE Of OPEN SPACE

PERCfNTAGE OF CftN SPACE

8Yoc:ct.PNtt' TYP(''

9V OOCUPNICY rrP£11> ......... . , . _

(b~De •...-~,

~,.,..

LOT rtf'£/

lOCATICIN'

Check PSO based o n required TOSL for R-1 str ucture o n an R- 1 / inside lot fro m Table V III.G.6

~,

cw AIOMd

11111:1\ Ptn'I'IIOM

Hot, Hot.

lt.1 H-2,

I<>U"J... E·t atwJ E.J

{(VM•J WKI E·1111ld

- - ... -· .. --.......... .._ ""--•., .. ... ...... ....... --· -,.._..,... _ -· ..... --.. --_ -_.........· """ I -_.. &C_0,£-2

""" ,.,.' (b'R.tuse

(Tr~t·

1-.'JimNI)

h.W.Lot

,.,ed

lOa•

oc:o~,.

~"<"·-

~00.

~

'\;"..

""" """'

& C.D.E-2

,.,.

.

"""

-. •• cr::::: """

'"'"

$:!

~

R.2use

10l1

""'

TLA = PSO + TOSL PSO = TLA -T OSL PSO = 100% - 50%= 50%

R-1

Page 166

~···

'"'" ,_,

-)

.&
~·

""'

I

..............~

""'

((~

/1 Determlnlna the AMBF & PSO Example 2 AMBF

= I I x 23.5 = 258.5 sqm

PSO

= 258.5/450 = 57.44%

6

Based on TOSL req'ts (Table

225 sqm

30 MTRS.

VIII.G.6),... .: _

r-_·

PS , = 50% Therefore, the more restrictive is: PSO = 50% and AMBF = 50% of 450 = 225 s qm

R-1

15 MTRS.

R.- 1, 450 sqm, inside lot, 15 mtn. frontage


((~

Example 3 A young couple has decided that their basic R-2 zoned property, with a Total Lot Area (TLA) of 96 sqm and located in Quezon City, shall host their dream house. The Project Site is a corner lot, with a 9.60-meter wide frontage facing north .The Project Site. The Project Site uniformly slopes at 0% towards the north with a 12-meter wide street, i.e. the road-right of way (RROW) that is relatively flat and which has 2.0-m wide sidewalks (which includes a 0.80-m wide planting strip) at both sides. The s urface at the center of the Project Site frontage is considered as elevation 0.0-m. The west side of the lot is also bounded by another 12-meter wide street. What is the Allowable Maximum Building Footprint (AMBF) for the Project, if the building shall NOT have a firewall?

Basic

R-2

What is the Allowable Percentage Site Occupancy(PSO) for the Project, if the building shall NOT have a firewall?

/1 Determlnlna the AMBF & PSO Example 3 (without firewall) T•blt vrt.G.7.

Sug~tod Mlnlmumloc

Sl..o, Loc Olmtnok>olo and Typeo

byUMO
-

(0<_, lOC

iSoo -

VJI.Rgo.n MU)

-

HOC

Basic

R-2

(«lltfulo< LOC tsoo R

c lOC .,

End LOC

l1wough Loc

Allutting3ot

Mort S.Mta.. tk.. Rlwselc

tsoo -va.

iS.. Rule VJI.Rgo.no

Vll1)

Vll.U

.......

S600aq

IOOOaq

eoo-.

'-·Through Lot ot Comet Lol

-

1.)

Rgo. VIU. & Vll7J

S600aq-.. 9 60 mt1or> (wj

•oo ........ , IOOO ........ Idl

(w)

(w)

o \000

o \000

mtiOIO(d)

-(d)

Page 170

((~

/1 Determlnlna the AMBF & PSO Example 3 (without firewall) Table VIII. f.

Reference Tab'- of Maximum Allowable PSO, Max1mum Allowable ISA, the MACA., the Mlnlmum USA and the TOSL by Type of Land Use Zonina per Lot '4 of TOiallot Area (TLA) BIMI
Use or

Occupancy (or L&nd

UM),

ReOidenllal (

AIOwal>le ISA. (Paved

Maunum

Duly-Approwd ZonlllQ •

Allov.~l>le

PSO c.4

--

01>$n

.........

Baooc Residenll312(R-2)1

d\\'GIIIf'IO ul\ll wi'ttl a

)

55,

TOSL 4

(ISA + USA)

Open Spaoeo)

30

15

45

30'4

10

40

.......

umQef'li$Cy

H"""""'

Soaeeol

USA (Unpavod

60r

B"*llllQ Heighi i.Jml (BHL) of 10.00 melero]

Page 131

Based on Table VIII. I (w/o firewalls):

Basic

R-2

PSO = 55%

((~

/1 Determlnlna the AMBF & PSO Example 3 (without firewall) A MBF

= S x 4.6 = 23 sqm

PSO

=23 I 96

= 24% = 25% IOMTRS.

Basic

R-2

9.6 MTRS.

Basic R-2, 96 $qm, corner lot, 9.60 mtrs. frontage

((~

/1 Determlnlna the AMBF & PSO Example 3 (without firewall) T~ V.,.O,, , NWMwr~ TOSL bqull'tl'*"'tt b)' 1.« T,.n.<~¢tt1otl

HifJ/'« ~ N lflllti!IJtlrW _,

IIOf/lt

Check PSO based on required TOSL for R-2 structure o n an R-2 corner lot from Table VIII.G.6

.........

LOCATION'

8'f~~y TYf'E''

8Y OOOUP.o\HCY fYPE..

lb PKipMd DeulcpN~U .,.... ,enWtDM f lirtwtllt « AlcMoed

•••

........... .. t<>AI>"l

c... t.Gtt Of Througfl

V..4.Mtd

••

E·1811d f-3

(Tr~t·

" ...

Basic

R-2

Page 166

H-1 ~•

""'"

"

(bol

!b"

....

.... .,

........... dt~ol

....,~

..... (2) RROW

""'"

-. """

,.,.

(bR·1..t"

•Hde for

PSO = 100%- 30% = 70%

... -· ........, .. ....(- b o l

.... ,_ _ ·... -.. .._ _ .... ........ --·.. _..,.., ........ ... -- ....

PSO = TLA -TOSL

H.l, H-2.

l-

&C O. l~

..., _

PERCENTAGE Of Of'EN SPACE

(b PtopoMd De\ llo;.nlllllll5

~firtweh or~)

LOt TYf£f

(TLAI.

MIHI\«JN

PEROEHTAO£ Of OPOI8PAC£

-"'J

TLA = PSO + TOSL

.,..,..1/Wwt 7otltl« A!'N

.....

~

~

~WM•J

tnd f·1iltld

JC..0.£-2

EJ

"""""""'

-·-"'

... . I """ ~·.,....

(too •.,

~···

!b"

(toor.-IWII)

...... "'' ""- .. ,..., ........, M''..

!b"

!b"

~

-. """

""

((~

/1 Determlnlna the AMBF & PSO Example 3 (without firewall) T"" <>-""'- (IGf.V .. T.... t.oo.ioo ciLoo

- ·l!oMOo-"""liHl_O, ..--e.MOoF_WIBFI_••-Ncl r.,.,.. caA!,ett o ~ ID ~
t.e Tallf lei hH cr TtA (d cr .tiOt.ll rw..l).

AI:JrAbll ~~d~ !NI'f'tlj.Rcfcft:> 1~ \I, f•..,.,.,..·'-~~« llA

CoNr-~ Lee ~* Rg. \11 U.cl

RokWII

ecw.Lcc N:a.ort

3crl.beSW., .,......_&

.........

(~F"~g.W..Ilof

.,

VVlt

' "" PSO = 70%

Basic

R-2

Page 84-88

((~

/1 Determlnlna the AMBF & PSO Example 3 (without firewall) AMBF

=Sx4.6 8

PSO

=23/96

= 24%

Based on (Table Vlll.l"l'>.-...,. IOMTRS.

PSO = SS% Based on TOSL req'ts (Table VIII.G.6 ): PSO = 70% Based on (Table Vll.l ):

Basic

R-2

PSO = 70% 9.6 MTRS.



((~

Example 3 A young couple has decided that their basic R-2 zoned property, with a Total Lot Area (TLA) of 96 sqm and located in Quezon City, shall host their dream house. The Project Site is a corner lot, with a 9.60-meter wide frontage facing north .The Project Site. The Project Site uniformly slopes at 0% towards the north with a 12-meter wide street, i.e. the road-right of way (RROW) that is relatively flat and which has 2.0-m wide sidewalks (which includes a 0.80-m wide planting strip) at both sides. The s urface at the center of the Project Site frontage is considered as elevation 0.0-m. The west side of the lot is also bounded by another 12-meter wide street. What is the Allowable Maximum Building Footprint (AMBF) for the Project?

Basic

R-2

What is the Allowable Percentage Site Occupancy(PSO) for the Project?

((~

/1 Determlnlna the AMBF & PSO Example 3 (w/ firewall) Table VIII. f.

Use or

Maunum

Occupancy


(or L&nd

Allov.~l>le

PSO c.4

UM),


01>$n Soaeeol

ReOidenllal

Baooc Residenll312(R-2)1 Medium Denscy iy Housing lolllQie d\\'GIIIIg ul\ll wi'ttl B"*llllQ Heighl l..orri (BHL) of 10.00 me1e10

55,

30

) 30'4

60r

USA

TOSL 4

(Unpavod

(ISA + USA)

Open Spaoeo) 15

45

10

40

......... Page 131

Based on Table VIII. I (w/ firewalls):

Basic

R-2

PSO = 60%

((~

/1 Determlnlna the AMBF & PSO Example 3 (w/ firewall) AMBF

= S x 4.6 = 23 sqm

+ additional area of (2 x S

PSO

= IOsqm)

33sqm

= 33 I 96 = 34% IOMTRS.

= 35%

Basic

R-2

9.6 MTRS.


((~

/1 Determlnlna the AMBF & PSO Example 3 (w/ firewall) T.1W. \111.0.•. Ninlm- TOSlbqul~ brlot f'n*l.outlon NdJt Hgh«~l. . tti#ttMytlp(Jiybr~wirl ~ Totiii""ArN

Che ck PSO based on re quired TOSL for R-2 structure o n an R-2 corne r lot from Table VIII.G.6

...........

f'ERCEHTAGE Of OPE.~ !PAC£ BY OCCJ.INCY TYPE"

MINIMUM PERCeNTAGE Of CftN SPACE BY OCCUPANCY TYPE'" tb flrooo5ed Deo.~u with Petmllttecl Flrtwtll• or AlcrNrtd

_... -_..... ....... ....... -... .. ... ... ._ ·...... .. .... .. ... ..___ ... -.. -··...... .............. ·,...., _, -.. - (lew Ptooowd~

... -...

~'"-ll or~l

LOT I'YPEI

l OCAOON"

a

••• --., a toUM•I E-t anc! E-3 "'"""' E-1 C.D.E-2 "'"' •• ""'""""" """' ,... ,.. ""'"""""' ""30'<• , t'o
CORotrl ot+

30'\

or Throl.ltfl

R·1 11'1d

,.,

~

t+Ut.2,

K-4 a'ICII

.., . _.ol) &C O,E-2 (Tr~L-

fl1101llll)nlft

TLA = PSO + TOSL

tTt4l

and

and

&

(T-

... .._

c:uhr.....

\'W.4.•nd

P SO = TLA -TOSL

COtfltl le4t,

P SO = 100%- 25% = 75%

Basic

R-2

Page 166

,

.,,..,to ,,"'""'12l

.a..

t'o
~

.._

t'o
llltbbbQMI

iiCiof'oc Ulllty

.,..,.._ tlo
30' : c

tlo
((~

/1 Determlnlna the AMBF & PSO T"" <>-""'- (IGf.V .. T.... t.oo.ioo ciLoo

- ·l!oMOo-"""liHl_O, ..--e.MOoF_WIBFI_••-Ncl r.,.,.. caA!,ett o ~ 10 ~


c.....Loo-. 3cr lobe SW., ftC. Rt.oM. &

_

(~F"~g.l1lllof

... ,...

...

--.....

t•GI= Roor .,.(rOfA; .,.,.,~

, _ U:inlHii1CtiM: (~~bJNM:M1bt~~~~t:qllt'*ISI~ I"'td t1t TCCIII f.CC Ntf cr ll.A (vrtl or _ . rr..- F9Jt ~ II> ~ 1D COf!lllf...,. ltlt br " ' COITJO' olt'C d N

JICWIIItt~~ d!lAJrg CAMVB)

Basic

R-2

""'" PSO

F\JH!r

W t. toar!MaN ~ ~)GITl.A_

''""

,,,...

= 75% Page 84-88

((~

/1 Determlnlna the AMBF & PSO Example 3 (w/ firewall) AMBF

= S x 4.6 = 23 sqm

PSO IOMTRS.

Based on (Table Vlll. 1}::_ _, PSO = 60% Based on TOSL req'ts (Table VIII .G.6): PSO = 75% Basic

Based on (Table Vll.l ) :

R-2

PS0 = 7S%

9.6 MTRS.


((~

/1 Determlnlna the AMBF & PSO Example 3 (w/ firewall) 33sqm

AMBF

PSO

=

35%

Check Firewall length: For medium density residential (R-2) uses or occupancies, a firewall can be erected on a maximum of 80% of the total length of a side property line; provided that only one (I) side property line is used for a firewall in the case of a R-2 structure

IOMTRS.

80% of IOmtrs = 8mtrs. Actual is only Smtrs; OK

Basic

R-2

9.6 MTRS.



((~

Example 4 A young couple has decided that their basic R-2 zoned property, with a Total Lot Area (TLA) of 384 sqm and located in Quezon City, shall host their dream house. The Project Site is a corner lot, with a 19.20-meter wide frontage facing north . The Project Site uniformly slopes at 0% towards the north with a 12-meter wide str eet, i.e. the road-right of way (RROW) that is relatively flat and which has 2.0-m wide sidewalks (which includes a 0.80m wide planting strip) at both sides. The surface at the center of the P roject Site frontage is considered as e levation 0.0-m. The west side of the lot is also bounded by another 12-meter wide street. What is the Allowable Maximum Building Footprint (AMBF) for the Project, if the building shall NOT have a firewall?

Basic

R-2

What is the Allowable Percentage Site Occupancy(PSO) for the Project, if the building shall NOT have a firewall?

/1 Determlnlna the AMBF & PSO Example 4 (w/o firewall) T•blt vrt.G.7.

Sug~tod Mlnlmumloc

Sl..o, Loc Olmtnok>olo and Typeo

byUMO
-

(0<_, lOC

iSoo -

VJI.Rgo.n MU)

-

HOC

Basic

R-2

(«lltfulo< LOC tsoo R

c lOC .,

End LOC

l1wough Loc

Allutting3ot

Mort S.Mta.. tk.. Rlwselc

tsoo -va.

iS.. Rule VJI.Rgo.no

Vll1)

Vll.U

.......

S600aq

IOOOaq

eoo-.

'-·Through Lot ot Comet Lol

-

1.)

Rgo. VIU. & Vll7J

S600aq-.. 9 60 mt1or> (wj

•oo ........ , IOOO ........ Idl

(w)

(w)

o \000

o \000

mtiOIO(d)

-(d)

Page 170

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/o firewall) Table VIII. f.

Use or

Occupancy

Maunum


(or L&nd

UM),

Allov.~l>le

PSO c.4

'l·~

01>$n

.........

./"

ReOidenllal


12 (R-2)1

55,

Me · ""'Y HouoinQ I•

dwellllg u~~i'th a B"*llllQ Heighi i.Jml (BHL) of 10.00 melero]

60r

-

Soaeeol

)

USA (Unpavod

Open

TOSL 4 (ISA + USA)

Spaoeo)

30

15

45

30'4

10

40

Page 131


Basic

R-2

PSO = 55%

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/o fi rewall) AMBF

= 14.2 x I 5 =21 3 s qm

PSO

= 213 / 384 = 55.47% = 55% 20 MTRS.

Basic

R-2

19.2 M TRS.

Basic R-2, 384 sqm, corner lot, 19.2 mtn. frontage

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/o firewall) T.1W. \111.0.•. Ninlm- TOSlbqul~ brlot f'n*l.outlon NdJt Hgh«~l. . tti#ttMytlp(Jiybr~wirl ~ Totiii""ArN

Check PSO based on required TOSL for R-2 structure o n an R-2 corner lot from Table VIII.G.6

...........

f'ERCEHTAGE Of OPE.~ !PAC£ BY OCCJ.INCY TYPE"

LOT I'YPEI

l OCA""'

... -...

tf.l, H--2.

a ..,._"'! E-t anc!E-3

(Tr~L-

"'"""' "'"' """' ,..

CORotrlot+

,.,

or Throl.ltfl ~

PSO = 100%- 30% = 70%

Basic

R-2

Page 166

.,,..,to "',,,.,. ""'12l

and £.1 and

&C.D.E-2

(T-

(b R·2) ~···

\'W.4.•nd

<:Orfltl le4t,

••• --., a toUM•I ......, •• ""'"" ""'"""""' "" 30'<• ,..... tfo

K.4 a'ICII

fl~llll)nlft

PSO = TLA -TOSL

MINIMUM PERCeNTAGE Of CftN SPACE BY OCCUPANCY TYPE'" tb flrooo5ed Deo.~u with Petmllttecl '""""''• or AlcrNrtd

_... -_..... ...... ....... ... ... ...... , ...... .... ·-""J ..... .. ... ... .. _ ---· -··...... .............. ·,...., _, -.. - (lew Ptooowd~

~'"-ll or~l

&C O,E-2

TLA = PSO + TOSL

tTt4l

.a..

tfo
~

.._

tfo
tntbbbQMI

iiCiof'oc Ulllty

30'1'"'

30' :c

tfo
tfo<"

.,..,.._

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/o firewall) T"" <>-""'- (IGf.V .. T.... t.oo.ioo ciLoo

- ·l!oMOo-"""liHl_O, ..--e.MOoF_WIBFI_••-Ncl r.,.,.. caA!,ett o ~ ID ~


CoNr-~ Lee ~* Rg. \11 U.cl

RokWII

ecw.Lcc N:a.ort

3crl.beSW., .,......_&

.........

(~F"~g.W..Ilof

.,

VVlt

' "" PSO = 70%

Basic

R-2

Page 84-88

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/o fi rewall) AMBF

= 25 x 23.8 = 21 3 sqm

PSO

= 21 3/384 = 55.47% = 55% 20 MTRS.

211.2 sqm BMed~TC(sL.~~fi~Tan~~----- VIII.G.6 ): PSO

211.2 sqm

= 70%

BMed on (Table Vll.l ): Basic

R-2

PSO

= 70% 19.2 MTRS.



((~

Example 4 A young couple has decided that their basic R-2 zoned property, with a Total Lot Area (TLA) of 384 sqm and located in Quezon City, shall host their dream house. The Project Site is a corner lot, with a 19.20-meter wide frontage facing north .The Project Site. The Project Site uniformly slopes at 0% towards the north with a 12-meter wide street, i.e. the road-right of way (RROW) that is relatively flat and which has 2.0-m wide sidewalks (which includes a 0.80-m wide planting strip) at both sides. The s urface at the center of the Project Site frontage is considered as elevation 0.0-m. The west side of the lot is also bounded by another 12-meter wide street. What is the Allowable Maximum Building Footprint (AMBF) for the Project?

Basic

R-2

What is the Allowable Percentage Site Occupancy(PSO) for the Project?

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/ firewall) If firewall is not provide d,Table

VIII . I prevaile d. The re fore, if firewall is to be provide d,Ta ble VIII . ! shall also prevail.

20 MTRS.

230.4 sqm

Basic

R-2

19.2 MTRS.


((~

/1 Determlnlna the AMBF & PSO Example 4 (w/ firewall) Table VIII. f.

Use or

Maunum

Occupancy


(or L&nd

Allov.~l>le

PSO c.4

UM),


01>$n Soaeeol

ReOidenllal

Baooc Residenll312(R-2)1 Medium De""'Y

55, /

Housing lolllQie lam~ d\\'GIIIf'IO ul\ll wi'ttl a B"*llllQ Heighi i.Jml ~ (BHL) of 10.00 melero]

60r

30

) 30'4

USA

TOSL 4

(Unpavod

(ISA + USA)

Open Spaoeo) 15

45

10

40

Page 131


Basic

R-2

PSO = 60%

((~

/1 Determlnlna the AMBF & PSO Example 4 (w/ firewall) If firewall is not provide d,Table

VIII . I prevaile d. The re fore, if firew all is t o be provide d,Ta ble VIII . ! shall also prevail: PSO = 60%

20 MTRS.

230.4 sqm

AMBF = 60% of 384 =

230.4 sqm

Basic

R-2

19.2 MTRS.


Determining the Ambf Pso

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