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Borough of Narberth, PA
Montgomery County
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Table of Contents
Table of Contents
Code
New Laws (0) Index
A. 
Map of existing civic institutional buildings.
B. 
Map of properties with existing civic/institutional building within 500 feet of rail station.
[Added 11-20-2018 by Ord. No. 1010]
A. 
Condition A: two-way travel and two lanes of parking.
Condition A: Two-Way Travel and Two Lanes of Parking
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel lane
f - Parking lane
g - Planting strip (if present)
B. 
Condition B: two-way travel and one lane of parking.
Condition B: Two-Way Travel and One Lane of Parking
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel lane
f - Parking lane
g - Planting strip (if present)
C. 
Condition C: two-way travel without on-street parking.
Condition C: Two-Way Travel Without On-Street Parking
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel Lane
f - Parking lane (not applicable)
g - Planting strip (if present)
D. 
Condition D: one-way travel with two lanes of parking.
Condition D: One-Way Travel with Two Lanes of Parking
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel lane
f - Parking lane
g - Planting strip (if present)
E. 
Condition E: one-way travel with one lane of parking.
Condition E: One-Way Travel with One Lane of Parking
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel lane
f - Parking lane
g - Planting strip (if present)
F. 
Condition F: one-way travel without on-street parking.
Condition F: One-Way Travel Without On-Street Parking
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel lane
f - Parking lane (not applicable)
g - Planting strip (if present)
G. 
Condition G: four travel lanes with parking lanes or wide planting strip.
Condition G: Four Travel Lanes with Parking Lanes or Wide Planting Strip
Examples provided for illustrative purposes only.
a - Right-of-way
b - Cartway
c - Curb width equals six inches
d - Sidewalk
e - Travel lane
f - Parking lane
g - Planting strip
Table (11)
Street Dimension Standards
a
b
c
d
e
f
g
Block
Name
Condition
Right-of-Way Width
(feet)
Cartway Width
(feet)
Curb Width
(inches)
Sidewalk Width
(feet)
Travel Lane Width
Parking Lane Width
Planting Strip Width
(feet)
Direction
Parking
Number of Sidewalks
200
Barrie
B
36
20
6
4
â–ª
â–ª
0
2
1
1
500
Beechwood
B
36
20
6
4
â–ª
â–ª
2
2
1
2
600
Berkley
B
50
22
6
4
â–ª
â–ª
0
2
1
1
000
Brynwood
C
12
18
6
N/A
â–ª
â–ª
0
1
0
N/A
000
Chestnut
B
44
26
6
4
â–ª
â–ª
3
2
1
2
100 - 399
Chestnut
A
44
26
6
4
â–ª
â–ª
3
2
2
2
100
Conway
D
50
30
6
4
â–ª
â–ª
0
1
2
2
500
Conway
B
50
30
6
4
â–ª
â–ª
0
2
1
1
200 - 499
Conway
A
50
30
6
4
â–ª
â–ª
0
2
2
2
400
Country
B
50
24
6
4
â–ª
â–ª
0
2
1
2
100
Dudley
D
50
30
6
4
â–ª
â–ª
0
1
2
2
200 - 599
Dudley
A
50
30
6
4
â–ª
â–ª
0
2
2
2
200
Elm Terrace
A
40
22
6
4
â–ª
â–ª
2
2
2
2
000 - 099
Elmwood
A
44
26
6
4
â–ª
â–ª
4
2
2
2
100 - 299
Elmwood
B
44
26
6
4
â–ª
â–ª
4
2
1
2
100 - 199
Essex (N)
D
50
30
6
6 - 12
â–ª
â–ª
0
1
2
2
100 - 400
Essex (S)
B
44
25
6
4
â–ª
â–ª
3
2
1
2
200 - 499
Essex (N)
B
50
30
6
4
â–ª
â–ª
0
2
1
2
500 - 699
Essex (N)
B
50
32
6
4
â–ª
â–ª
2
2
1
2
100
Forrest
A
50
30
6
6 - 12
â–ª
â–ª
0
2
2
2
200
Forrest
A
50
28
6
4
â–ª
â–ª
0
2
2
2
100
Foxhall
A
50
30
6
4
â–ª
â–ª
0
2
2
2
300
Grayling
A
50
28
6
4
â–ª
â–ª
0
2
2
2
100 - 299
Grayling
A
50
28
6
4
â–ª
â–ª
2
2
2
2
400
Grove
A
44
24
6
4
â–ª
â–ª
4
2
2
2
300
Hampden
A
50
25
6
4
â–ª
â–ª
0
2
2
1
100 - 299
Hampden
A
50
30
6
4
â–ª
â–ª
0
2
2
2
000
Hansen
A
50
30
6
4
â–ª
â–ª
0
2
2
2
000
Haverford
E
33
24
6
4
â–ª
â–ª
0
1
1
1
100
Haverford
F
33
24
6
4
â–ª
â–ª
0
1
0
1
200 - 301
Haverford
D
33
21
6
6 - 12
â–ª
â–ª
0
1
2
2
302 - 699
Haverford
C
33
24
6
4
â–ª
â–ª
0
2
0
2
500
Homewood
A
50
30
6
4
â–ª
â–ª
0
2
2
2
100 - 199
Iona
B
50
30
6
4
â–ª
â–ª
0
2
1
2
200 - 399
Iona
A
50
28
6
4
â–ª
â–ª
1
2
2
2
000
Langdon
A
50
30
6
4
â–ª
â–ª
3
2
2
2
200
Lantwyn
B
20
16
6
4
â–ª
â–ª
0
2
1
1
300
Lantwyn
B
20
16
6
4
â–ª
â–ª
0
2
0
1
100 - 299
Maple
A
44
26
6
4
â–ª
â–ª
0
2
2
2
300
Meetinghouse
A
50
28
6
4
â–ª
â–ª
0
2
2
2
100 - 399
Merion
A
44
26
6
4
â–ª
â–ª
3
2
2
2
1000 - 1200
Montgomery
G
66
44
6
6
â–ª
â–ª
4
2
0
2
600 - 999
Montgomery
G
66
44 - 60
6
6 - 12
â–ª
â–ª
8
2
0 - 2
2
100
Narberth (N)
D
50
30
6
6 - 12
â–ª
â–ª
0
1
2
2
000 - 099
Narberth(s)
B
50
24
6
6 - 12
â–ª
â–ª
0
2
1
2
200 - 499
Narberth (N)
B
50
30
6
4
â–ª
â–ª
0
2
1
2
300 - 401
Narberth(S)
B
40
24
6
4
â–ª
â–ª
2
2
1
2
Narbrook Park1
C or F
38.5 or 26.5
14 6
N/A
4
â–ª
â–ª
8
1 or 2
0
1 or 2
000 - 099
Narwyn
A
50
30
6
4
â–ª
â–ª
0
2
2
1
000 - 399
Price
A
50
28
6
4
â–ª
â–ª
0
2
2
2
100 - 299
Rockland
B
35
24
6
4
â–ª
â–ª
4
2
1
2
300 - 499
Rockland
B
35
24
6
4
â–ª
â–ª
4
2
1
1
000 - 299
Sabine
A
50
30
6
4
â–ª
â–ª
0
2
2
2
600
Shady
C
16
16
6
4
â–ª
â–ª
0
2
0
2
000
Shirley
B
33
20
6
4
â–ª
â–ª
0
2
1
2
200
Stepney
B
50
22
6
4
â–ª
â–ª
3
2
1
2
000
Stuart
A
44
24
6
4
â–ª
â–ª
0
2
2
2
200
Wayne
B
50
24
6
4
â–ª
â–ª
0
2
1
2
200
Williams
D
40
22
6
4
â–ª
â–ª
2
1
2
2
000 - 199
Windsor
A
50
30
6
4
â–ª
â–ª
0
2
2
2
200 - 250
Windsor
E
50
30
6
4
â–ª
â–ª
0
1
1
2
251 - 399
Windsor
D
50
30
6
4
â–ª
â–ª
0
2
2
2
000 - 399
Woodbine
A
50
30
6
4
â–ª
â–ª
0
2
2
2
000 - 100
Woodside
A
44
26
6
4
â–ª
â–ª
3
2
2
2
200 - 599
Woodside
A
44
26
6
4
â–ª
â–ª
4
2
2
2
100
Wynnedale
A
50
24
6
4
â–ª
â–ª
5.5
2
2
2
300
Wynnewood(S)
C
50
28
6
4
â–ª
â–ª
0
2
0
2
000 - 399
Wynnewood(N)
C
50
28
6
4
â–ª
â–ª
6
2
0
2
400 +
Wynnewood(N)
C
50
24
6
4
â–ª
â–ª
6
2
0
2
000
Wynnewood Ct
B
40
23
6
4
â–ª
â–ª
0
2
1
2
â–ª
Existing conditions
N/A
Not applicable to this block
NOTE:
1
Narbrook Park: Roads are privately owned and should conform to the standards of the record plan for the development.
[Amended 7-20-2023 by Ord. No. 1056]
Table (12)
Parking Credits
Block Face
Name
Block Face Total Linear Feet
Block Face Parkable Linear Feet
Ratio
Linear Feet Along Property Frontage for One Credit
200
Barrie
485
402
0.83
24.13
500
Beechwood
758
330
0.44
45.94
600
Berkley
371
199
0.54
37.29
000
Chestnut
667
606
0.91
22.01
100
Chestnut
1749
1284
0.73
27.24
200
Chestnut
866
628
0.73
27.58
300
Chestnut
434
296
0.68
29.32
100
Conway
974
485
0.50
40.16
200
Conway
563
398
0.71
28.29
300
Conway
547
344
0.63
31.80
400
Conway
686
478
0.70
28.70
500
Conway
400
366
0.92
21.86
400
Country
722
0
0
No credit
100
Dudley
1187
618
0.52
38.41
200
Dudley
1575
1222
0.78
25.78
300
Dudley
1137
826
0.73
27.53
400
Dudley
1324
1045
0.79
25.34
500
Dudley
956
732
0.77
26.12
200
Elm Terrace
450
313
0.70
28.75
100
Elmwood
1513
677
0.45
44.70
200
Elmwood
693
452
0.65
30.66
000 - 099
Elmwood
909
713
0.78
25.50
100
Essex (N)
1186
622
0.52
38.14
200
Essex (N)
1879
554
0.29
67.83
300
Essex (N)
712
536
0.75
26.57
400
Essex (N)
696
560
0.80
24.86
500 - 699
Essex (N)
757
333
0.44
45.47
100
Forrest
649
236
0.36
55.00
200
Forrest
2016
1548
0.77
26.05
100
Grayling
1054
683
0.65
30.86
200
Grayling
1298
1115
0.86
23.28
300
Grayling
1526
1246
0.82
24.49
400
Grove
1143
965
0.84
23.69
100
Hampden
562
358
0.64
31.40
200
Hampden
1395
1063
0.76
26.25
300
Hampden
312
259
0.83
24.09
200
Haverford
1063
792
0.75
26.84
500
Homewood
705
421
0.60
33.49
100
Iona
500
183
0.37
54.64
200
Iona
1559
995
0.64
31.34
300
Iona
458
392
0.86
23.37
200 - 300
Lantwyn
1424
593
0.42
48.03
100
Maple
550
450
0.82
24.44
300
Meeting House
904
648
0.72
27.90
100
Merion
1930
1574
0.82
24.52
200
Merion
671
577
0.86
23.26
300
Merion
693
534
0.77
25.96
1200 - 1300
Montgomery
n/a
0
0
No credit
100
Narberth (N)
964
430
0.45
44.84
100
Narberth (S)
454
0
0
No credit
200
Narberth (N)
1962
861
0.44
45.57
200
Narberth (S)
475
173
0.36
54.91
300
Narberth (N)
1389
603
0.43
46.07
300
Narberth (S)
1053
942
0.89
22.36
400
Narberth (N)
497
198
0.40
50.20
400
Narberth (S)
744
257
0.35
57.90
100
Price
484
341
0.70
28.39
200
Price
1403
956
0.68
29.35
300
Price
300
282
0.94
21.28
100
Rockland
316
0
0
No credit
100
Sabine
234
176
0.75
26.59
200
Sabine
1220
705
0.58
34.61
000 - 099
Sabine
2367
1444
0.61
32.78
000
Stuart
338
242
0.72
27.93
200
Wayne
1597
489
0.31
65.32
200
Williams
220
220
1
20.00
100
Windsor
797
458
0.57
34.80
301
Windsor
203
87
0.43
46.67
000 - 099
Windsor
961
310
0.32
62.00
302 - 399
Windsor
804
445
0.55
36.13
200
Woodbine
585
493
0.84
23.73
300
Woodbine
873
700
0.80
24.94
000 - 099
Woodbine
428
340
0.79
25.18
100
Woodside
1926
1292
0.67
29.81
200
Woodside
884
742
0.84
23.83
300
Woodside
1291
596
0.46
43.32
000 - 099
Woodside
853
672
0.79
25.39
400 - 500
Woodside
1043
341
0.33
61.17
[Added 11-20-2018 by Ord. No. 1010]
Table (13)
Front Yard Setbacks by Block
Street Name
Block Number
Block Side
Median Setback
(feet)
Barrie Road
200
N
34.5
Barrie Road
200
S
38
Beechwood Lane
500
E
41
Beechwood Lane
500
W
40
Berkley Road
N/A
W
40
Brynwood Manor
N/A
E
7
Chestnut Avenue
00
N
43
Chestnut Avenue
00
S
38.5
Chestnut Avenue
100
N
44
Chestnut Avenue
100
S
34
Chestnut Avenue
200
N
33.5
Chestnut Avenue
200
S
48
Chestnut Avenue
300
N
21
Chestnut Avenue
300
S
35
Conway Avenue
100
E
34.5
Conway Avenue
100
W
35
Conway Avenue
200
E
26
Conway Avenue
300
E
34
Conway Avenue
400
E
36
Conway Avenue
400
W
37
Conway Avenue
500
E
27
Country Lane
400
E
48
Country Lane
400
W
45
Dudley Avenue
200
E
29
Dudley Avenue
200
W
30
Dudley Avenue
300
E
32
Dudley Avenue
300
W
34.5
Dudley Avenue
400
E
35.5
Dudley Avenue
400
W
30
Dudley Avenue
500
E
33
Dudley Avenue
500
W
25
East Wynnewood Road
N/A
E
25
Elm Terrace
N/A
N
31
Elm Terrace
N/A
S
26
Elmwood Avenue
00
N
35
Elmwood Avenue
00
S
41
Elmwood Avenue
100
N
33
Elmwood Avenue
100
S
39.5
Forrest Avenue
200
E
33
Forrest Avenue
200
W
34.5
Foxhall Lane
100
N
42.5
Foxhall Lane
100
S
47.5
Grayling Avenue
200
E
32
Grayling Avenue
200
W
30
Grayling Avenue
300
E
31
Grayling Avenue
300
W
34
Grove Place
N/A
N
41
Grove Place
N/A
S
27
Hampden Avenue
200
E
29
Hampden Avenue
200
W
31
Hansen Court
N/A
E
49
Hansen Court
N/A
W
39
Haverford Avenue
100
N
6
Haverford Avenue
400
N
45
Haverford Avenue
500
N
38
Homewood Avenue
500
E
30
Homewood Avenue
500
W
24
Iona Avenue
200
E
33
Iona Avenue
200
W
33
Langdon Lane
N/A
N
53
Langdon Lane
N/A
S
46
Lantwyn Lane
200
E
28.5
Lantwyn Lane
200
W
27.5
Lantwyn Lane
300
S
30
Maple Avenue
100
W
36
Maple Avenue
200
E
39
Meeting House Lane
300
N
15
Meeting House Lane
300
S
33
Merion Avenue
100
N
41
Merion Avenue
100
S
34
Merion Avenue
200
N
42
Merion Avenue
200
S
28.5
Merion Avenue
300
N
44
Merion Avenue
300
S
36
Montgomery Avenue
1000
S
56
Montgomery Avenue
1100
S
52
Montgomery Avenue
1200
S
46
Montgomery Avenue
1300
S
90
North Essex Avenue
600
N
27
North Essex Avenue
600
W
33
North Essex Avenue
500
E
38
North Essex Avenue
500
W
30
North Essex Avenue
400
E
20.5
North Essex Avenue
400
W
38
North Essex Avenue
300
E
38
North Essex Avenue
300
W
30.5
North Essex Avenue
200
E
32.5
North Essex Avenue
200
W
32.5
North Narberth Avenue
200
E
39
North Narberth Avenue
200
W
41
North Narberth Avenue
300
E
34
North Narberth Avenue
300
W
38
North Narberth Avenue
400
E
27
North Narberth Avenue
400
W
52
North Wynnewood Avenue
200
E
122
North Wynnewood Avenue
500
E
58
Narbrook Park
N/A
E
53
Narbrook Park
N/A
W
40.5
Narwyn Lane
N/A
N
47
Narwyn Lane
N/A
S
46
Price Avenue
100
N
30
Price Avenue
100
S
29
Price Avenue
200
N
31
Price Avenue
200
S
47.5
Price Avenue
300
N
37
Price Avenue
300
S
32
Rockland Avenue
100
N
29
Sabine Avenue
00
N
41
Sabine Avenue
00
S
44
Sabine Avenue
100
S
27
Sabine Avenue
200
S
31
Shady Lane
N/A
W
42
Shirley Circle
N/A
W
49
Shirley Road
00
N
37.5
Shirley Road
00
S
48
Shirley Road
100
W
49
South Essex Avenue
N/A
W
30
South Narberth Avenue
100
E
44
South Narberth Avenue
100
W
35
South Narberth Avenue
200
E
30
South Narberth Avenue
200
W
38
South Narberth Avenue
300
E
42
South Narberth Avenue
300
W
48.5
South Narberth Avenue
400
E
40
South Narberth Avenue
400
W
46
Stepney Place
N/A
N
53.5
Stepney Place
N/A
S
50
Stuart Avenue
N/A
N
24
Stuart Avenue
N/A
S
34
Wayne Avenue
N/A
N
30
Wayne Avenue
N/A
S
33
Williams Avenue
200
E
20
Williams Avenue
200
W
19
Windsor Avenue
00-50
N
71
Windsor Avenue
50-99
N
39.5
Windsor Avenue
100
N
23.5
Woodbine Avenue
00
N
31
Woodbine Avenue
100
N
35
Woodbine Avenue
200
S
36
Woodside Avenue
00
N
41
Woodside Avenue
00
S
44
Woodside Avenue
100
N
31
Woodside Avenue
100
S
39
Woodside Avenue
200
N
34
Woodside Avenue
200
S
37
Woodside Avenue
300
N
45
Woodside Avenue
300
S
42
Woodside Avenue
400
N
40.5
Woodside Avenue
400
S
40.5
Woodside Avenue
500
S
44.5
Wynnewood Court
N/A
N
18
Wynnewood Court
N/A
S
21
[1]
Editor's Note: Former § 500A-7, Table (14), Front Facade Measures by Block, was repealed 2-4-2021 by Ord. No. 1028.
[Amended 11-20-2018 by Ord. No. 1010]
Diagram: Lot Layers
Explanation of Standards
The following instructions are not regulatory and are provided for informational purposes in application of the zoning standards.
Definition (Article 12) of "lot layer": An area of a lot defined by its distance and limit from the principal road.
Lot layers help define the location of additions, parking, storage of trash, etc., depending on the district the property is located in. The first lot layer is a semiprivate space usually reserved for front yards and porches in residential districts and sidewalks in commercial areas. Buildings are required to be built along the primary frontage line to frame and enclose public and semiprivate spaces.
Article 4, Table (4), articulates lot layer depths for all zoning districts.
Article 5, § 500-503, Frontages, specific to 3a, 3b, 3c, and 4a Zoning Districts: The first lot layer may not be paved except for driveways and paths for walking that connect the entrance of the principal building to the sidewalk.
Article 6, § 500-601B, Parking design, specific to 3a, 3b, 3c, 4a Zoning Districts: Parking may only be located in the second or third lot layer.
A. 
Site planning for mid-block lots.
Diagram: Site Planning for Mid-Block Lots
Explanation of Standards
The following instructions are not regulatory and are provided for informational purposes.
Site Planning Standards for Mid-Block Lots
A
The legal right-of-way width varies depending on the street. Most rights-of-way are 50 feet wide.
B
Because right-of-way widths vary, some districts measure front yard setback from the curb and calculate the median of all examples on the block, while other districts measure from the edge of the road right-of-way. In almost all cases, the intent is for new structures to match the front setback of existing buildings on the block.
C
Features like porches and bay windows may be located in setback areas and are called encroachments.
D
Side yard setback for principal buildings.
E
Rear yard setback for principal buildings.
F
Side and rear yard setbacks for accessory buildings are usually less than for principal buildings. Shared garages can even be built across property lines.
G
Lot line.
H
Frontage build-out is expressed as a minimum and maximum percentage of the primary frontage line that must be occupied by the principal building.
B. 
Site planning for corner lots.
[Amended 11-20-2018 by Ord. No. 1010]
Diagram: Site Planning for Corner Lots
Explanation of Standards
The following instructions are not regulatory and are provided for informational purposes.
Site Planning Standards for Corner Lots
A
The legal right-of-way width varies depending on the street. Most rights-of-way are 50 feet wide.
B
Within the 3a, 3b, 3c, 4a, and 4b Zoning Districts, the front façade should be set back according to front yard setback standards of the principal street. The secondary façade should be set back according to front yard setback standards of the secondary street or the minimum side yard setback standards when no other homes face the secondary street. Within the 5a and 5b Zoning Districts the front façade should be set back according to the front yard setback standards of the principal street and the secondary façade should be set back according to the minimum side yard setback standards.
C
Features like porches may be located in setback areas and are called encroachments.
D
Front or side yard setback for principal building depending on existing conditions on the block.
E
Rear yard setback for principal buildings.
F
Side and rear yard setbacks for accessory buildings are usually less than those of principal buildings. Shared garages can even be built across property lines.
G
Lot line.
H
Frontage build-out is expressed as a minimum and maximum percentage of the primary frontage line that must be occupied by the principal building.
Diagram: Front Facade
Explanation of Standards
The following instructions are not regulatory and are provided for informational purposes in application of the zoning standards.
Definition of "front facade" (Article 12): All above-ground exterior walls of a building that is set along the primary frontage line.
Definition of "primary frontage line" (Article 12): A line parallel or tangent to a street where the front facade is located at a distance equal to the front setback.
Article 5, § 500-501D, Front façade. Specific to detached house and twin house building types located in 3a, 3b, 3c Zoning Districts: The facade area shall not exceed 115% of the mean average calculated facade area of all existing detached house and twin house building types on the block on which the building is located. Facade area for twin houses shall include the aggregate area of all residences within the structure.
[Amended 2-4-2021 by Ord. No. 1028]
Article 5, § 500-502B, Specific to detached building type: The ratio of openings to wall area in the front facade shall be a minimum 20% and a maximum of 50%.
Diagram: Roofs
Explanation of Standards
The following instructions are not regulatory and are provided for informational purposes in application of the zoning standards.
Below is a summary of definitions and standards that may be applicable.
Definition of "primary roof" (Article 12): Any roof plane whose rafters rest on a load-bearing exterior wall at the height of a first or second floor eave or overhanging a wall or porch.
Definition of "secondary roof" (Article 12): Any roof plane that is not a primary roof such as dormer or porch roofs.
Article 5, § 500-501C, Roofs on principal buildings.
1.
Specific to detached house, twin house, and multifamily house building types located in 3a, 3b, and 3c Zoning Districts: Taller buildings (> 30-foot ridge) must have more steeply pitched roofs, minimum of eight inches of rise for every foot of run.
When measuring the pitch of a gambrel roof, measure the rise as distance from eave to highest ridge and the run from highest ridge to eave. Pitch equals a/b.
[Added 2-4-2021 by Ord. No. 1028]
A. 
Specific to the 5a and 5b Zoning Districts:
(1) 
Building height shall be measured as follows:
(a) 
The mean level of the ground shall be determined by one of the two following methods:
[1] 
Method 1: Calculating the mean average of measurements of the ground level at two-foot intervals at the perimeter of the building footprint in its predevelopment state.
[2] 
Method 2: Calculating the mean average of measurements of the ground level at one-foot contour lines at the perimeter of the building footprint in its predevelopment state.
(b) 
The building height shall be measured as the distance between the mean level of the ground as defined above and a point midway between the highest and the lowest points of the roof.
B. 
Specific to the 3a, 3b, 3c, 4a, and 4b Zoning Districts:
(1) 
Building height shall be measured as follows:
(a) 
The mean level of the ground shall be determined by one of the two following methods:
[1] 
Method 1: Calculating the mean average of measurements of the ground level at two-foot intervals at the perimeter of the lot.
[2] 
Method 2: Calculating the mean average of measurements of the ground level at one-foot contour lines at the perimeter of the lot.
(b) 
The building height shall be measured as the distance between the mean level of the ground as defined above and a point midway between the highest and the lowest points of the roof.