Matters ▸ Attachment
Residential Neighborhoods 2 (with 198429) — File 201624
5/31/16
1
City of Somerville
Zoning Overhaul
City of Somerville
Zoning Workshop
Residential Neighborhoods 2
(aka Neighborhood Character)
Board of Aldermen – Land Use Committee
5.23.16
City of Somerville
Zoning Overhaul
City of Somerville
5/31/16
2
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Process
Subject Matter Workshops: UPDATED schedule
SUBJECT
PUBLIC MEETING
L.U.C.
•
Public Space
11.23.15
11/30/15
•
Arts & Creative Economy
12.7.15
2/9/16
•
Attainable Housing I
1.11.16
n/a
•
Residential Neighborhoods
1.25.16
2/23/16
•
Mobility
2.22.16
5/24/16
•
Process
3.7.16
4/5/16
•
Attainable Housing II
3.21.16
n/a
•
Economic Development
4.11.16
5/10/16
•
Sustainability
4.25.16
5/17/16
•
Residential Occupancy
5.9.16
TBD
•
Residential Neighborhoods II
5.23.16
5/31/16
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Process
Subject Matter Workshops: UPDATED schedule
SUBJECT
PUBLIC MEETING
L.U.C.
•
Public Space
11.23.15
11/30/15
•
Arts & Creative Economy
12.7.15
2/9/16
•
Attainable Housing I
1.11.16
n/a
•
Residential Neighborhoods
1.25.16
2/23/16
•
Mobility
2.22.16
5/24/16
•
Process
3.7.16
4/5/16
•
Attainable Housing II
3.21.16
n/a
•
Economic Development
4.11.16
5/10/16
•
Sustainability
4.25.16
5/17/16
•
Residential Occupancy
5.9.16
TBD
•
Residential Neighborhoods II
5.23.16
5/31/16
5/31/16
3
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Tonight’s Schedule
Presentation
• SomerVision Goals
• Neighborhood Research
• A New Proposal
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Tonight’s Schedule
Presentation
• SomerVision Goals
• Neighborhood Research
• A New Proposal
5/31/16
4
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
584
Goals, Policies & Actions
SomerVision
182
Implemented through
Zoning
16
Neighborhood Character
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
GOALS
1. Preserve and enhance the character of Somerville’s neighborhoods,
2. Enable sensitive, economically feasible maintenance and adaptive reuse
of historic buildings,
3. Respect neighborhood form and patterns while expanding Somerville’s
architectural legacy
POLICIES
•
Protect and preserve the character of neighborhoods composed of single-
family, two-family, and three-family homes
•
Ensure that neighborhood properties can adapt and change to meet the
needs of residents, while respecting the character of the neighborhood
•
Provide clear and consistent direction including design standards and
guidelines for contextual infill development
SomerVision
Neighborhood Character Objectives
5/31/16
5
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Tonight’s Schedule
Presentation
• SomerVision Goals
• Neighborhood Research
• A New Proposal
5/31/16
6
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
RA/RB District Regulations Today
RA
RB
Lot Size
10,000
7,500
Dwelling Units
Up to 2*
Up to 3*
Lot Space/DU
2250 sf
1500 sf
Height
35
40
FAR
0.75
1.00
Ground Coverage
50%
50%
* Additional units permitted with affordable housing
5/31/16
7
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
RA and RB:
> 80% of properties
Neighborhood Research
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
5/31/16
8
Neighborhood Research
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
RA/RB Report: Findings
•
More single family houses in RB (1,289) than RA (1,013)
•
72% of RA lots don’t have enough lot area/DU
•
Average lot size is similar in both districts (4,400 in RA; 4,600 in RB)
•
Buildings in RA are taller (39.2 ft) than in RB (36.8) on average
•
Ground coverage is similar in both districts on average (36% in
RA; 37% in RB)
•
Floor area (bulk) is similar in both districts on average (0.72 in RA;
0.78 in RB)
5/31/16
9
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
RA/RB Report: 3 Problems
1. Zoning doesn’t reflect our existing residential
character
2. We have similar residential lots and buildings that are
zoned differently (RA and RB)
3. Exploits exist that allow development that is out of
character with the existing housing
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Tonight’s Schedule
Presentation
• SomerVision Goals
• Neighborhood Research
• A New Proposal
5/31/16
10
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
A New Proposal
• The NR district
• Permitted Building Types
• The ‘Conservation District’ Overlay
• Dimensional Standards for the Types
• Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
A New Proposal
• The NR district
• Permitted Building Types
• The ‘Conservation District’ Overlay
• Dimensional Standards for the Types
• Policies and Strategies
5/31/16
11
New Proposal
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
1.
Down zone RB and
merge with RA for a
single district
2.
Provide equal
protection because
all these properties
are so similar
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
A New Proposal
• The NR district
• Permitted Building Types
• The ‘Conservation District’ Overlay
• Dimensional Standards for the Types
• Policies and Strategies
5/31/16
12
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Proposed Zoning
1-2 Units/Lot
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
5/31/16
13
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Interior Diversity, but only 2 Units
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Interior Diversity, but only 2 Units
5/31/16
14
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Interior Diversity, but only 2 Units
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Strict Standards
No Special Permits for…
•
Other Building Types – Only 4 Permitted
•
More than 2 units* – Density is locked in
•
Floor area – Bulk is locked in
•
Height – Height is locked in
* We still must determine if we want the accessory basement
unit by Special Permit
5/31/16
15
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Strict Standards
Eliminates:
•
Buildings with forms that are not contextual
•
Permitting further non-conformities by Special Permit
•
# of units beyond that allowed
•
Floor area beyond that allowed by addition or use of
basement
•
Design review of dormer or new construction
•
3 units in RA by Special Residential Conversion
•
More than 2 or 3 units per lot
•
More than 1 building per lot
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Strict Standards
Requires Special Permit to:
•
Add a second unit to a lot with a one-unit building on it today
5/31/16
16
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
A New Proposal
• The NR district
• Permitted Building Types
• The ‘Conservation District’ Overlay
• Dimensional Standards for the Types
• Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Conservation District
Adjust specific metrics:
•
Lot width/depth
•
Setbacks
•
Height
•
Permitted components and frontages
5/31/16
17
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Conservation District
Adjust specific metrics:
•
Lot width/depth
•
Setbacks
•
Height
•
Permitted components and frontages
This strategy will be proposed in Spring Hill under the next draft of
the ordinance, and the staff will determine if other neighborhood
outliers also require an overlay.
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
A New Proposal
• The NR district
• Permitted Building Types
• The ‘Conservation District’ Overlay
• Dimensional Standards for the Types
• Policies and Strategies
5/31/16
18
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
New Proposal
Dimensional Standard: Example
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Staff to review in Summer 2016:
•
Examples of lots
•
Maximum buildings that can be built on lots
•
Comparison of new buildings with context
•
Lot width adjustments for driveways
•
Need for the “conservation district overlay” and appropriate
locations beyond Spring Hill if necessary
Dimensional Standards for Types
5/31/16
19
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Cottage (1 Unit)
Lot: 32 X 70
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
5/31/16
20
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Cottage (1 Unit)
40’ x 70’ (Approx)
5/31/16
21
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Detached House (2 Units)
Lot: 32 x 80
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
Cottage (1 Unit)
5/31/16
22
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Detached House (2 Units)
40’ x 80’ (Approx)
5/31/16
23
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Lot: 50 x 70
Duplex (2 Units)
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
Cottage (1 Unit)
5/31/16
24
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Duplex (2 Units)
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Semi-Detached House (2 Units, each side)
Two Adjacent Lots: each min 27 X 80
5/31/16
25
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Neighborhood Research
Cottage (1 Unit)
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Semi-Detached House (2 Units, each side)
5/31/16
26
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
A New Proposal
• The NR district
• Permitted Building Types
• The ‘Conservation District’ Overlay
• Dimensional Standards for the Types
• Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Different Types of Projects
•
Vacant Lots
•
Existing Houses
•
Side and Rear Yards
•
Accessory Units
•
Non-conforming Buildings
Policies and Strategies
5/31/16
27
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Different Types of Projects
•
Vacant Lots
•
Existing Houses
•
Side and Rear Yards
•
Accessory Units
•
Non-conforming Buildings
Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Vacant Lots
5/31/16
28
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Vacant Lots
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Vacant Lots
5/31/16
29
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Vacant Lots
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Vacant Lots
5/31/16
30
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Vacant Lots
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Different Types of Projects
•
Vacant Lots
•
Existing Houses
•
Side and Rear Yards
•
Accessory Units
•
Non-conforming Buildings
Policies and Strategies
5/31/16
31
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Existing Houses
1.
Residential buildings may adapt by adding building
components
Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Components
Existing Houses
5/31/16
32
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Existing Houses
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
77
SOMERVILLE ZONING ORDINANCE |
DRAFT January 22, 2015
Article 3. Building Standards
Building Components
8.
DORMER WINDOW
A window or set of windows that projects vertically from a sloped roof, designed to provide light into and expand the habitable
space of a half-story.
DIMENSIONS
Width (max)
24 feet or 50% of the eave
length of the main roof
(whichever is shorter)
Front & Rear Wall Setback (min)
3 ft. 6 in.
Side Wall Setback (min)
1 ft. 6 in.
Ridge Line Setback (min)
1 foot
Roof Slope (min)
4:12
Fenestration (min)
50%
STANDARDS
i.
Setbacks are strictly enforced regardless of permitted dormer
width.
ii.
The maximum permitted width of a dormer applies to single,
multiple, or attached combinations of dormers on each side
of a roof.
9.
CROSS GABLE
A sloped roof that projects perpendicularly from the main roof of a building to significantly increase the habitable space of a half-
story.
DIMENSIONS
Width (max)
50% of the eave length of
the main roof
STANDARDS
i.
The rakes of the cross gable roof must be structurally
integrated into the eave of the main roof.
78
| SOMERVILLE ZONING ORDINANCE
DRAFT January 22, 2015
Article 3. Building Standards
Building Components
10. SIDE WING
A multi-story extension from one or more side walls of the main body of a building.
DIMENSIONS
Setback from Facade (min)
10 feet
Floor Plate Area (max)
50% of the Floor Plate of
Principal Building
Width (max)
--
One (1) Story
1/2 of Main Body Width
Two (2) Stories
1/3 of Main Body Width
Height (min)
Same as Principal Building
STANDARDS
i.
Side wings must include a similarly style roof as the Principal
Building.
11. REAR ADDITION
An extension from the rear wall of the main body of a building.
DIMENSIONS
Setback from side Elevation (min)
1 foot
Floor Plate Area (max)
50% of the Floor Plate of
the Principal Building
Height (max)
2 stories
STANDARDS
i.
The slope of any pitched roof of a rear addition must be
equal to or less than slope of the roof of the main body of
the building and no less than nine and one-half degrees (9.5º;
2:12).
Existing Houses
5/31/16
33
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
BUILDING
TYPES
BUILDING
COMPONENTS
Existing Houses
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Existing Houses
1.
Residential buildings may adapt by adding building
components
Policies and Strategies
5/31/16
34
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Existing Houses
1.
Residential buildings may adapt by adding building
components
2.
If a lot is big enough, a cottage could transform into a house
or a duplex by Special Permit
Policies and Strageies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Existing Houses
1.
Residential buildings may adapt by adding building
components
2.
If a lot is big enough, a cottage could transform into a house
or a duplex by Special Permit
3.
New semi-detached houses can only happen when both
sides can be built
Policies and Strategies
5/31/16
35
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Different Types of Projects
•
Vacant Lots
•
Existing Houses
•
Side and Rear Yards
•
Accessory Units
•
Non-conforming Buildings
Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Side and Rear Yards
•
One building permitted per lot
•
Rear yards are protected; no houses behind houses
•
A wide lot could be split to create two lots, with a
permitted building type constructed on each lot
Policies and Strategies
5/31/16
36
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Different Types of Projects
•
Vacant Lots
•
Existing Houses
•
Side and Rear Yards
•
Accessory Units
•
Non-conforming Buildings
Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Should accessory units be permitted?
• Limitations in size
• Located in basement
• No more than 2 unrelated persons
• Must be owned by a resident(s) living in another unit
on the lot
• Special permit considerations:
• Quality of the living space
• Access to light and air circulation
• Privacy of on-site residents and neighbors
• Design of any exterior alterations necessary
Accessory Units
5/31/16
37
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Different Types of Projects
•
Vacant Lots
•
Existing Houses
•
Side and Rear Yards
•
Accessory Units
•
Non-conforming Buildings
Policies and Strategies
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Non-Conforming Buildings
Grandfathered
Building Types
Triple Decker
Four-Plex
Six-Plex
Apartment Building
May exist in
perpetuity but no
new ones
permitted
5/31/16
38
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
1. Maintain current use
2. Tear down building,
and follow rules for
vacant lots
3. Use existing building
for ‘fabrication’ type
uses
Non-Conforming Buildings
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Non-Conforming Buildings
5/31/16
39
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
Next Steps
Mayor Joseph A Curtatone
Office of Strategic Planning
& Community Development
More comments - email:
planning@somervillema.gov
On-line documents at:
www.somervillema.gov/zoning
5/31/16
40
City of Somerville
Zoning Overhaul