Morrisville UDO - June 2017 version

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Article 3: Zoning Districts
Section 3.3. Residential Districts
3.3.5. High Density Residential (HDR) District
June 23, 2017 Morrisville, NC
Page 3-14 Unified Development Ordinance
3.3.5. High Density Residential (HDR) District
HIGH D ENSITY RESIDENTIAL (HDR) DISTRICT
A. Purpose
In accordance with the Comprehensive Plan, the High Density Residential District accommodates
neighborhoods with a variety of housing types and a net density greater than 7.5 dwelling units
per acre. It is suitable for infill development in established neighborhoods, for development of
areas identified as high density residential in the Comprehensive Plan, or areas suited to high
density development supported by adequate infrastructure and nonresidential land uses. The
regulations of this district are intended to allow innovation in the arrangement of buildings within
such developments and discourage the development of land uses that could substantially interfere
with, or be detrimental, to residential character.
B. Principal Intensity and Dimensional Standards
A, etc. are symbols used in the illustrations showing application of dimensional standards
Cross References
Single-
Family
Detached
Dwellings
Duplex
Dwellings
Single-
Family
Attached
Dwellings
Multi-
family
Dwellings
Other Uses
Art. 4
Art. 5
Sec
Sec
Lot Standards Art. 6
Min. Net Lot Area (sf) 3,500 5,000 n/a 20,000 20,000 Art. 7
A Min. Lot Width (ft) 35 50 24 100 100
Max. Net Density (du/ac) 17.0 17.0 17.0 17.0 n/a
Max. Lot Coverage (%) 65 65 70 65 65
Setbacks
B1
Min. Front (ft)
Alley-loaded 10 [1] 10 [1] 10 [1] n/a n/a
B2 Other 20 20 20 20 30
C Min. Side (ft) 0 0 0 30 30
D Min. Corner Side (ft) 8 8 18 30 30
E 1
Min. Rear (ft)
Alley-loaded 6 [1] 6 [1] 6 [1] n/a n/a
E 2 Other 15 15 10 30 30
Building Standards
F 1 Max. Structure Height (ft) 45 45 45 75 75
F 2 Min. Structure Height (stories)
no
minimum
no
minimum
no
minimum
3 [2][3]
no
minimum
G Min. Building Separation (ft) 6 6 24 n/a n/a
Notes: sf = square feet; ft = feet; du = dwelling unit; ac = acre; % = percent; n/a = not applicable
[1] Setbacks also apply to residential developments with detached front-loaded garages located to the rear of the principal structure.
[2] Applied to multifamily developments. See additional standards in Sectio
[3] The minimum structure height for a carriage–style building with multifamily dwellings over garages is two stories.
(Ord. No. 2014-022, 06/24/2014; Ord. No. 2016-001, 05/10/2016)