HomeMy WebLinkAboutItem 07 - Accessory Dwelling UnitsI EI T: HONORABLE MAYOR AND MEMBERS OF THE CVTY COUNCUL
IFI I „ BRUNO RUMBELO , CVTY M ON GER%?"
I EETI D CTOBER 17v 2023
SUBJECT: REQUEST TO CFiDwL A PUIBLL C HE RUNG AM23-01
COMPREHENSWE ZONUNG ORIDUNANCE (32-73), RED ATWE T
I IE I I IEP DATII N: C« nsiider calling «a public hearing regarding AM23-01 Accessory IDwelling
Unfits (AIDUs) to create and «airriend definitions in Section 12, Definitions;
amend uses and use -specific standards in Section 13, "R-20", Single...
Faimiilly IDiistriicot; and create use -specific eciifiico standards in Section 42,
u ppllerrientary IDiistriicot Regulations of the Zoning Ordinance relative to
accessory dwelling units, and take any necessary action.
FUNDING SOUIRCIE:
BACKGROUND: The Planning and Zoning C oimrriiissiion Ihelld an August st 1 workshop at
wlhiiclh tiiime accessory dwelling units (AIDUs) were discussed relative to the
" .-20",Single.-Faimiilly IDiistriicot in response to recently proposed legislation
that ulltiiirn"natelly failed and then again at an extended briefing session on
eptern"ber 19 to review draft «airniendirn'ents to the "R-20"vSingle.-Faimiilly
IDiistrlcot and SUpplerrientary IDiistriicot RegUll«atiions. The Corn"nimiissiion
recoorn"nirn"ended that staff bring their proposed «airniendirnients to the C ou ncoH
as «a request to call «a public hearing. Attached are the drafted changes to
Section 12, Definitions, Section 13, "R.-20",Single.-Faimiilly IDiistrlcoty and
Section 42, SUpplerrientary IDiistriicot Regulations of the Zoning Ordiinance.
AIDUs repll ces "Servants' Quarters" in the "R.-20",Single.-Faimiilly IDlstriicot.
AIDUs are riot proposed to be allllowed within any other resiidenfii«all zoning
diistriicots. Additionally, the regulations proposed for the location, design,
and Iliiirn"niitatiions of AIDUs are proposed to be pllaced in Section 42,
u ppllerrient ry IDiistriicot Regulations as this its where all use -specific
standards in the Zoning Ordinance for priiirn"n«ary and accessory uses are
llocated for consistency.,
II U IE ::
During time State's 88th Regii,flair LegisWive Session, airn active Senate and
IHouse biH, B.. 1412/ HB.. 2789, gained traction and attention state-wide..
As proposed,, time bffls wou.uld have irestiricted a city firor n adopting Muir
enforcing it u.flaatio n that prohibit airn owirn it firor n bu.uMing, seMing, Muir
it irnfirnc airn AIDIU, oir irequire owirn it occu.upaincy of the pirimairy dweMing unit
of ai dot with airn AIDU for any dot zoirn d for iirng�-farrnfly oir du.up, ex uses.
These bffls wou.uld have authorized AIDUs by aright iirn most city
neighborhoods with oMy r niir it nay ov it ight by time cities. They w it
lira feed to bypass city-� vO diaogue oirn �airnd use ma tt it in fa voir of
uniform it gu.ulation at time state � v L These biHs weirweire u.uffir na te0y irnot
successfuL These biHs weirweire promoted a s a sokition to a flbirdaa N housing
n
shortages and a means to a ddir popu.ulation girowth..
What aire Accessory IC welling Units (AIDUs)?
Accessory dweMing units (AIDUs) aire accessory housing units that aauir
coca ted oirn time sa r n property a s a pirimairy residence. These buMings air
typicaa Hy ma H it iirn size and aire independent Wing paa c featuring
sepairate eintirainces, fiviing air a , kite m irn , bediroor n , and baa thiroor n .
Ott it inarnes associated with AIDUs iinckide secondary dweMing units,
guest houses, giraininy flat, r noth ir-iirn-�aw suites, backyard cottage, and
carriage houses.
IDoes Grapevine Mow AIDUs?
Yes, time Zoning Ordinance cu.uirir infly has definitions for irvairnt ' qu.uairt it
and guest houses. However, oMy irvaauints' quairteirs and ca bairna airfisted
a s aauin aHowaNe accessory uses within Section 13, "R-29", iirn � -IFa r nHy
IDistiruct of time Zoning Ordinance with restrictions.
hypes of AIDU Conshruclio n
AIDUs aire typica Hy of two types of coin stiru.uctio o, ground up oir "stick"
coinstiru.uctioro and ruiairnu.ufactu.uir d/rinodu.u�air housing units.. Time manufactured
oir modu.u0air housing unit options aire faa biricaa ted off -site at a fa achy and th irn
defiv it d to time work site in sepairate pieces, to be constructed oirn site.
Time manufactured/ modu.ulair options aire c ustorrnizaN , and products air
a vaa Ha N oirn time mairket designed to function a s AIDU' .. Time mairkefling for
these products states that they provide aau flexiNe and crust -effective
okitio n for hor neowirn it .. (e.g. BoxaW, Rain IPir fab, IMethod Hornes,
UokaN, etc.)
Below are proposed draft revisions depicted in a strikethrough/underline format to show
deletions and insertions found in various sections of the Zoning Ordinance.
DRAFT
Coed Strikethrou gh — Staff drafted deletions
Blue Underline — Staff drafted additions
Yellow Underlir, — P&Z requested additions 9/19/23
Green S#+kethraT — P&Z requested deletions 9/19/23
Purple Strikethroi gh — Council requested deletions
Orange Underline — Council requested additions
Section 12, Definitions
QIJARTERE ACCESSORY- -
ssel
secondary dwelling located on a lot with a main nrimary (detached) resident G�-estructu
and used as living quarters for persons employed on the premises enly er le-aaliv r_
but • for or - - Use to t o9parate Fes denGe
UT, L 1;0�
of or thanpersons
•6"je,--
Section 13, "R-20", Single -Family District
Subsection B, ^ ^�T Secondan Uses
The following uses shall be permitted as aGGessery secondary uses to a single-family
detached dwelling provided that none shall be a source of income to the owner or user of
the principal single-family dwelling, except for customary home occupation.
1. Off-street parking and private garages in connection with any use permitted in
this district.
2. Accessory Dwelling Unit. Refer to Section 42.C.6. for suoolementary district
standards related titt}oaccessory dwelling units. Servants' quarters not leased o
anyone
rented to er thanthe family of a hone fide servant, giving more thaR
fifty erCent of his or her employed time of the premises to whinh the
crrr-vr-rrr��r-rTcr- tome at cv�rcn cr-r�..
servants' quanorc is an QGGessery use and in the e nl�f family
nrrr�iino said premises
3 Guest q a4erc ECabana, pavilion, or roofed area.
4. Private swimming pools and tennis courts.
Agenda Memo 237474 (1)
5. AGGesse Secondary buildings (storage buildings, hobby shops, barns).
6. Signs subject to the provisions of Section 60.
7. Customary home occupation.
8. Communication equipment meeting the requirements of Chapter 7, Article XII
of the Grapevine Code of Ordinance.
9. Sale of merchandise or goods, including but not limited to garage sales and
yard sales, shall be limited to a maximum of once per quarter, for a period not
to exceed three (3) continuous days. For the purpose of this paragraph, the
month of January shall constitute the first month of the first quarter.
With the exception of Items 2 and 9, when any of the foregoing permitted
secondar uses are detached from the principal single-family dwelling, said uses shall be
located not less than forty-five (45) feet from the front lot line and shall meet the
requirements of Section 42.C.,D.,E.,F. and G.
°^�ry Secondar buildings more than sixteen (16) feet in height shall be set back
from the rear property line six (6) feet plus two (2) additional feet for each additional foot
of height over sixteen (16) feet. The height of the structures shall be measured from the
top of the slab or from its bottom floor.
***Note: the proposed change from "Accessory Buildings" to "Secondary Buildings" will
result in multiple small edits throughout the Zoning Ordinance.
Section 42, Supplementary District Regulations
Subsection C, Accessory Secondat Buildings
6. Accessory Dwelling Units
a. General
A. Must be located on the same lot as the primary (detached) dwelling
unit.
B. One (1) accessory dwelling unit is allowed per lot.
C. Modular and/or manufactured housing units fabricated off -site are
prohibited for use as an accessory dwelling unit.
Staff received D. Limited to one (1) bedroom.
feedback that
Subsections F and E. Utility services must be on the same meter as the primary
G are dwelling unit.
contradictory.
These need F. The property owner must occuov the primary dwelling unit as a
additional oerrna Primary residence and cannot rye rent or lease #AF the
direction.
accessory dwelling unit.
Agenda Memo 237474 (1) 2
G. If the primary dwelling unit is rented or leased, the accessory dwelling
unit cannot be sublet or leased separatelv from the primary dwelling unit.
b. Dimensional Requirements
A. Maximum Building Height — one storv, 16 feet.
B. Maximum Building Area — 750 square feet.
C. Minimum Separation from Primary Dwelling Unit — 10 feet.
D. Must be located in the rear 60�� vard of the lot, behind the primary
dwelling unit.
E. Setbacks:
1. Internal lots - Setback a minimum of 15 feet from the side
propertv line and 6 45 25 feet from the rear propertv line.
2. Corner lots — Setback a minimum of 15 feet from the side
propertv line on the street -facing side and 6 45 25 feet from the rear
propertv line.
3. Reverse Frontage lots — Set back a minimum of 40 feet from the
front propertv line, 40 feet from the side propertv line on the street -
facing side, 15 feet from the side propertv line adiacent to the
interior propertv line, and 25 feet from the rear propertv line.
c. Architecture and Design Standards
A. Accessory dwelling units must be:
1. Constructed of the same or similar exterior building materials and
finishes as the primary dwelling unit:
2. Architecturally designed to be compatible with the primary
dwelling unit and feature the same or similar roof pitch: floorplate
height: types and placement of doors windows and other openings:
other exterior finishes: material colors: and
3. Attached to an engineered permanent foundation per the
adopted International Building Code, state law, and set on the
ground.
d. Access and Parking
A. Drivewav access and off-street parking must be shared with the primary
dwelling unit and may not be comprised of multiple detached driveways.
Agenda Memo 237474 (1) 3
B. Off street norkmnq Provide one (1) parking space behind the front
building line of the primary structure in addition to the minimum parking
requirements for single-familv residences in m„S+ GGMPIV with Section
56, Off -Street Parking.
Agenda Memo 237474 (1) 4