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Boerne City Zoning Code

Sec. 3-5

Dimensional standards for base zoning categories.

A.

General dimensional standards.

1.

A fire wall shall be required for all walls where the distance between buildings is less than ten (10) feet.

2.

Zero (0) foot setbacks on attached dwelling lots requires a party wall meeting all building code standards and proper designation on a recorded plat.

3.

Building heights of accessory buildings shall not exceed the actual height of the principle building on the same lot.

4.

Special purpose lots, including but not limited to landscape lots and utility lots, may be exempted from these requirements.

5.

For the R3-A and R4 Districts, all required setbacks shall be free from any encroachments, including but not limited to, accessory buildings, bay windows, and fireplaces. Air conditioning units, eaves, and roof overhangs and other similar ground-mounted equipment are exempt from this requirement.

6.

For all other residential districts, limited encroachment into the front and rear setbacks shall be permitted for eaves, roof overhangs, unenclosed patios and porches, and minor architectural details such as fireplaces and bay windows. They may encroach into the front setback by a maximum of three (3) feet and into the rear setback by a maximum of ten (10) feet.

7.

Accessory buildings are prohibited in the front street yard.

8.

The front setback for a pie-shaped lot or a lot on a curvilinear street or cul-de-sac is measured wherever the lot width meets the minimum frontage requirement for the zoning district.

B.

Dimensional standards by zoning category.

1.

Dimensional standards for residential zones.

DIMENSIONAL STANDARDS FOR RESIDENTIAL ZONES
Agriculture and
Rural Residential
Manor Residential
Estate Residential
Low Density
Residential
Medium Density
Residential
Neighborhood
Residential
Moderate Density
Residential
RA RM RE R1-L R1-M R2-N R2-M
LOTS AND COVERAGE
min lot area (sf or ac) 10 ac 1 ac 1/2 ac 1/4 ac 7,800 sf 5,400 sf 4,000 sf
max lot area (sf or ac) n/a n/a n/a n/a n/a n/a n/a
min. lot frontage (ft) 300 ft 150 ft 100 ft 80 ft 65 ft 50 ft 40 ft
min. lot frontage, corner lot (ft) n/a n/a n/a n/a n/a n/a 50 ft
PRIMARY BUILDINGS
max height (ft) 35 ft 35 ft 35 ft 35 ft 35 ft 35 ft 35 ft
min FY setback 80 ft 50 ft 40 ft 30 ft 20 ft 15 ft 15 ft
garage FY setback 80 ft 50 ft 40 ft 30 ft 25 ft 25 ft 25 ft
min SY setback, per side 50 ft 20 ft 15 ft 10 ft 5 ft 5 ft 5ft
min SY setback, street-facing (corner lot) 50 ft 20 ft 15 ft 10 ft 10 ft 10 ft 10 ft
min RY setback, no alley 80 ft 50 ft 25 ft 25 ft 15 ft 15 ft 15 ft
min RY setback, with alley n/a n/a n/a n/a 10 ft 10 ft 10 ft
ACCESSORY BUILDINGS
max height (ft) 20 ft 20 ft 20 ft 20 ft 20 ft 20 ft 20 ft
min FY setback behind front building line 1.5 times the setback of the front building line 1.5 times the setback of the front building line 1.5 times the setback of the front building line 1.5 times the setback of the front building line 1.5 times the setback of the front building line 1.5 times the setback of the front building line
min SY setback 50 ft 10 ft 10 ft 10 ft 5 ft 5 ft 5 ft
min SY setback, street-facing (corner lot) n/a 25 ft 25 ft 25 ft 25 ft 25 ft 25 ft
min SY setback, party wall n/a n/a n/a n/a n/a 0 ft 0 ft
min RY setback, no alley 50 ft 10 ft 10 ft 5 ft 5 ft 5 ft 5 ft
min RY setback, with alley n/a 10 ft 10 ft 5 ft 5 ft 5 ft 5 ft

 

a.

Setback of the front building line shall be the distance between the front property line and the point of the front building line nearest to the right-of-way.

DIMENSIONAL STANDARDS FOR RESIDENTIAL ZONES (cont.)
Duplex Residential
Attached Residential
Multi-Unit Residential
Bungalow Court
Horizontal Multi-family Residential
Low Density Multi-family Residential
Urban Multi-family Residential
Manufactured Home Community
Interim Holding
R3-D R3-A R3-M R4-B R4-H R4-L R4-U RMHC HOL
LOTS AND COVERAGE
min lot area (sf or ac) 3,500 sf 2,000 sf 3,500 sf 1/2 acre n/a n/a 6 ac n/a
max lot area (sf or ac) n/a n/a n/a 10 acres n/a n/a n/a 25 ac n/a
min. lot frontage (ft) 35 ft 20 ft 35 ft 40 ft n/a n/a n/a n/a n/a
min. lot frontage, corner lot (ft) 45 ft 25 ft 45 ft 50 ft n/a n/a n/a n/a n/a
max du/ac n/a n/a 16 du/ac 10 du/ac n/a n/a 6 du/ac n/a
PRIMARY BUILDINGS
max height (ft or stories) 35 ft 38 ft or 3 stories 35 ft 20 ft or 1 story 30 ft or 2 stories 40 ft or 3 stories 75 ft 35 ft n/a
min FY setback 15 ft 10 ft 15 ft 10 ft 25 ft 25 ft 15 ft 25 ft n/a
garage FY setback/driveway length in front garage 25 ft 20 ft 25 ft n/a 20 ft 20 ft 25 ft n/a
min SY setback, per side and unit separation for multi-family 5 ft 5 ft 5 ft 5 ft 15 ft 15 ft 15 ft 5 ft n/a
min SY setback, street-facing (corner lot) 15 ft 15 ft 15 ft 10 ft 15ft 15 ft 15 ft 25 ft n/a
min SY setback, party wall 0 ft 0 ft 0 ft n/a 0 ft 0 ft 0 ft n/a n/a
min RY setback, no alley 20 ft 15 ft 20 ft 10 ft 20ft 20 ft 20 ft 10 ft n/a
min RY setback, with alley 15 ft 10 ft 15 ft 10 ft 20ft 20 ft 20 ft 10 ft n/a
min combined FY and RY 50 ft 35 ft 50 ft 20 ft 50ft 50 ft 50 ft 10 ft n/a
ACCESSORY BUILDINGS
max height (ft or stories) 20 ft 20 ft 20 ft n/a 1 story n/a n/a 20 ft n/a
min FY setback 10 ft behind rear building line 10 ft behind rear building line 10 ft behind rear building line n/a 10 ft behind rear building line n/a n/a 5 ft behind rear building line n/a
min SY setback 5 ft 5 ft 5 ft n/a 5 ft n/a n/a 5 ft n/a
min SY setback, street-facing (corner lot) 25 ft 25 ft 25 ft n/a 25ft n/a n/a 25 ft n/a
min SY setback, party wall 0 ft 0 ft 0 ft n/a 0ft n/a n/a 0 ft n/a
min RY setback, no alley 5 ft 5 ft 5 ft n/a 10ft n/a n/a 10 ft n/a
min RY setback, with alley 5 ft 5 ft 5 ft n/a 10ft n/a n/a 10 ft n/a

 

Dimensional Standards for Non-Residential Zones.

DIMENSIONAL STANDARDS FOR NON-RESIDENTIAL ZONES
Neighborhood Commercial
General Commercial
Community Commercial
Center City Commercial
Neighborhood Office
Office Park
Industrial Office
Storage and Transportation
Craft Industry
Light Industrial
General Industry
Civic and Institutional
C1 C2 C3 C4 O1 O2 O3 I1 CR I2 I3 CIV
LOTS AND COVERAGE
min lot area (sf or ac) 5,000 sf 1 acre 1/2 acre 5,000 sf 1 acre 1 acre
min lot width (ft) 60 ft 120 ft 50 ft 60 ft 50 ft 50 ft 60 ft 60 ft
max lot width (ft) 150 ft or 1/2 block width 1 200 ft or 1/2 block width 1
max building footprint 5,000 sf per building 4 12,000 sf per building 4 3,500 sf
BUILDINGS
max height (ft or stories) 30 ft 30 ft 3 40 ft 75 ft 30 ft 75 ft 75 ft 40 ft 75 ft 75 ft
min FY setback 10 ft 10 ft 0 ft 20 ft 20 ft 25 ft 25 ft 10 ft 25 ft 50 ft 20 ft
min SY setback 5 ft 5 ft 5 ft 20 ft 10 ft/5 ft 2 25 ft 10 ft 10 ft 10 ft 50 ft 20 ft
min SY setback, street-facing (corner lot) 0 - 10 ft 10 ft 0 ft 20 ft 20 ft 25ft 25 ft 25 ft 25 ft 50 ft 20 ft
min SY setback, party wall 0 ft 0 ft 0 ft not allowed not allowed not allowed 0 ft 0 ft 0 ft not allowed 0 ft
min RY setback 20 ft 20 ft 20 ft 20 ft 10 ft 50 ft 25 ft 25 ft 25 ft 50 ft 10 ft
min RY and SY setback at property line adjoining residential 10 ft 20 ft 20 ft 50 ft 20 ft 50 ft 50 ft 50 ft 100 ft 100 ft 100 ft 40 ft
min FY setback when adjacent to residential same as the adjoining residential same as the adjoining residential same as the adjoining residential same as the adjoining residential

 

Notes:

1. The greater of the two (2) values controls.

2. Minimum side yard setback is ten (10) feet if adjoining residential, five (5) feet (zero (0) feet with firewall) if adjoining non-residential.

3. Building height may be increased to forty (40) feet provided that, from any side of the building adjoining or facing a residential property, the building shall be stepped back ten (10) feet for any part of the building with a height above thirty (30) feet.

4. The greater of the two (2) values controls. Multiple tenants may be calculated as the average square footage for all tenants in a multi-tenant building with the total square footage not to exceed the maximum building footprint. A single tenant building shall not exceed the maximum building footprint per building.

(Ord. No. 2024-10, § 1(Exh. A), 8-27-2024)