General Performance Standards
Allowable Speed (mph) | Required Sight Distance (feet) |
|---|---|
25 | 160 |
35 | 240 |
40 | 275 |
45 | 325 |
50 | 350 |
55 | 425 |
Driveway* Width (feet) | ||
|---|---|---|
One-Way Operation | Two-Way Operation | |
3 to 9 dwelling units | 10 to 15 | 15 to 25 |
10 dwelling units or over | 15 to 25 | 20 to 35 |
Commercial and industrial | 15 to 30 | 25 to 35 |
* | All driveways shall be five feet wider at the curbline and this additional width shall be maintained for a distance of 20 feet into the site. |
Multifamily Construction1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Districts2 | |||||||||
R-A | R-B | R-C | R-D | R-R | Sub- urban Mixed Use | T | D-I | Comm- ercial | |
Minimum land (square feet per dwelling unit) | 7,500 | 4,250 | 3,750 | 2,500/first bedroom,3 plus 500/each additional bedroom | 7,500 | None | See § 275- 5.17H. | Note 2 | |
Minimum frontage (feet) | 100 | 851 | 75 | 100 | 150 | None | See § 275- 5.17H. | Note 2 | |
Minimum setbacks (feet): | |||||||||
Front | 20 | 20 | 10 | 10 | 50 | 304 | See § 275- 5.17H. | Note 2 | |
Side | 15 | 10 | 10 | 10 | 25 | 504 | See § 275- 5.17H. | Note 2 | |
Rear | 30 | 30 | 20 | 20 | 25 | 504 | See § 275- 5.17H. | Note 2 | |
Usable open area | 50% | 40% | 35% | 30% | 50% | None | None | Note 2 | |
Maximum building coverage | 20% | 25% | 30% | 35% | 30% | None | None | Note 2 | |
Parking spaces, per unit | See § 275-4.23, Off-street parking and loading requirements. | ||||||||
Notes: | |
|---|---|
1 | This table applies to both new construction and conversions of existing buildings. However, for conversions with no increase in building footprint, only minimum land per dwelling unit, usable open area, maximum building coverage and parking spaces per unit apply. For new construction, all apply. Density bonuses apply for developments in which the majority of dwelling units (more than half) are affordable. See § 275-4.36. |
2 | Commercial Zones: Same criteria as required in existing commercial zones. |
3 | Includes efficiency apartments. |
4 | Except for structures existing as of June 30, 2016. |
Sound Pressure Level Limits Using the Sound Equivalent Level of One Minute (leg 1) [measured in dB(a) scale] | ||
|---|---|---|
7:00 a.m. to 9:00 p.m. | 9:00 p.m. to 7:00 a.m. | |
Residential | 55 | 45 |
Commercial | 65 | 55 |
Industrial | 70 | 60 |
Diameter of Tree at 4 1/2 Feet Above Ground Level (inches) | Points |
|---|---|
2 to less than 4 | 1 |
4 to less than 8 | 2 |
8 to less than 12 | 4 |
12 or greater | 8 |
Grade | Spacing (feet) |
|---|---|
0 to 2% | 250 |
3% to 5% | 200 to 135 |
6% to 10% | 100 to 80 |
11% to 15% | 80 to 60 |
16% to 20% | 60 to 45 |
21% and above | 40 |
Land Use | Minimum Lot Area1 (square feet) | Minimum Shore Frontage2 (feet) | Maximum Lot Coverage |
|---|---|---|---|
Residential | |||
Class A | 40,000 | 200 | 20% |
Class B | 40,000 | 200 | 20% |
Governmental, institutional, commercial, industrial, per principal structure1 | 60,000 | 300 | 70% |
Public and private recreation | 40,000 | 200 | 20% |
Principal Structure (feet) | Accessory Structure4 (feet) | |
|---|---|---|
Class A | 100 | 100 |
Class B | 75 | 75 |
Class C | 25 | 25 |
Stream protection district | 75 | 75 |
Tributary streams | 75 | 75 |
Minor waterways | 3 | 3 |
Notes: | |
|---|---|
1 | |
2 | Measured in a straight line between the points of intersection of the side lot lines with the shoreline at normal high water elevation. See Subsection J(1)(e). |
3 | See Maine Department of Environmental Protection regulations pursuant to the Natural Resources Protection Act. |
4 | See Subsection J(1)(b). |
General Performance Standards
Allowable Speed (mph) | Required Sight Distance (feet) |
|---|---|
25 | 160 |
35 | 240 |
40 | 275 |
45 | 325 |
50 | 350 |
55 | 425 |
Driveway* Width (feet) | ||
|---|---|---|
One-Way Operation | Two-Way Operation | |
3 to 9 dwelling units | 10 to 15 | 15 to 25 |
10 dwelling units or over | 15 to 25 | 20 to 35 |
Commercial and industrial | 15 to 30 | 25 to 35 |
* | All driveways shall be five feet wider at the curbline and this additional width shall be maintained for a distance of 20 feet into the site. |
Multifamily Construction1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Districts2 | |||||||||
R-A | R-B | R-C | R-D | R-R | Sub- urban Mixed Use | T | D-I | Comm- ercial | |
Minimum land (square feet per dwelling unit) | 7,500 | 4,250 | 3,750 | 2,500/first bedroom,3 plus 500/each additional bedroom | 7,500 | None | See § 275- 5.17H. | Note 2 | |
Minimum frontage (feet) | 100 | 851 | 75 | 100 | 150 | None | See § 275- 5.17H. | Note 2 | |
Minimum setbacks (feet): | |||||||||
Front | 20 | 20 | 10 | 10 | 50 | 304 | See § 275- 5.17H. | Note 2 | |
Side | 15 | 10 | 10 | 10 | 25 | 504 | See § 275- 5.17H. | Note 2 | |
Rear | 30 | 30 | 20 | 20 | 25 | 504 | See § 275- 5.17H. | Note 2 | |
Usable open area | 50% | 40% | 35% | 30% | 50% | None | None | Note 2 | |
Maximum building coverage | 20% | 25% | 30% | 35% | 30% | None | None | Note 2 | |
Parking spaces, per unit | See § 275-4.23, Off-street parking and loading requirements. | ||||||||
Notes: | |
|---|---|
1 | This table applies to both new construction and conversions of existing buildings. However, for conversions with no increase in building footprint, only minimum land per dwelling unit, usable open area, maximum building coverage and parking spaces per unit apply. For new construction, all apply. Density bonuses apply for developments in which the majority of dwelling units (more than half) are affordable. See § 275-4.36. |
2 | Commercial Zones: Same criteria as required in existing commercial zones. |
3 | Includes efficiency apartments. |
4 | Except for structures existing as of June 30, 2016. |
Sound Pressure Level Limits Using the Sound Equivalent Level of One Minute (leg 1) [measured in dB(a) scale] | ||
|---|---|---|
7:00 a.m. to 9:00 p.m. | 9:00 p.m. to 7:00 a.m. | |
Residential | 55 | 45 |
Commercial | 65 | 55 |
Industrial | 70 | 60 |
Diameter of Tree at 4 1/2 Feet Above Ground Level (inches) | Points |
|---|---|
2 to less than 4 | 1 |
4 to less than 8 | 2 |
8 to less than 12 | 4 |
12 or greater | 8 |
Grade | Spacing (feet) |
|---|---|
0 to 2% | 250 |
3% to 5% | 200 to 135 |
6% to 10% | 100 to 80 |
11% to 15% | 80 to 60 |
16% to 20% | 60 to 45 |
21% and above | 40 |
Land Use | Minimum Lot Area1 (square feet) | Minimum Shore Frontage2 (feet) | Maximum Lot Coverage |
|---|---|---|---|
Residential | |||
Class A | 40,000 | 200 | 20% |
Class B | 40,000 | 200 | 20% |
Governmental, institutional, commercial, industrial, per principal structure1 | 60,000 | 300 | 70% |
Public and private recreation | 40,000 | 200 | 20% |
Principal Structure (feet) | Accessory Structure4 (feet) | |
|---|---|---|
Class A | 100 | 100 |
Class B | 75 | 75 |
Class C | 25 | 25 |
Stream protection district | 75 | 75 |
Tributary streams | 75 | 75 |
Minor waterways | 3 | 3 |
Notes: | |
|---|---|
1 | |
2 | Measured in a straight line between the points of intersection of the side lot lines with the shoreline at normal high water elevation. See Subsection J(1)(e). |
3 | See Maine Department of Environmental Protection regulations pursuant to the Natural Resources Protection Act. |
4 | See Subsection J(1)(b). |