REQUIREMENTS FOR SINGLE FAMILY DWELLING ADDITIONS Submittal: Two (2) sets of reproduction (copy or blue-print) plans are required to be submitted for plan check. Plans shall be drawn to scale with a straight edge and of sufficient clarity and detail to show conformance with all relevant laws and ordinances. Planning Department (Room 208) : Approval is required for a room addition prior to submitting plans to the Building and Engineering Department. The minimum requirement is a plot plan, a floor plan, and elevations. Planning phone number: (626) 939-8422 Building and Engineering (Room 215): In addition to the above, structural plans (and calculations for most second stories), details, and energy conservation requirements are required. A separate permit is required for building, plumbing, mechanical, and electrical. A formal fee quote is available upon request. Basic Plan Requirements - Refer to specific samples. PLOT PLAN: a) A site plan showing all lot dimensions, north arrow, scale, streets, alleys and easements. b) The exact location, setbacks, and dimensions of all existing and proposed structures on the lot including patios, accessory buildings, and pools. Show distances between adjacent buildings and buildings and the property lines. Show the size and location of any trees affected by the proposed construction. c) The location and dimensions of all proposed new construction, with all proposed construction clearly identified. d) A summary showing a description of the proposed project, lot size, existing, proposed, demolished, and total area in square feet, the number of stories and the current building code. (2007CBC) e) The site address, the owner s name, and the name of the designer or other consultants. A copy of the site plan is required to be submitted on an 8-1/2 by 11 or 14 size sheet of paper. FLOOR PLAN a) The exact location and dimensions of all existing and proposed rooms. All rooms shall be clearly identified by use such as kitchen, bedroom, closet, etc. b) Show the size, type and location of all proposed windows, existing windows removed, and windows of rooms affected by or adjacent to the addition. Required window area must be between 8% and 20% of the floor area of the room and be 1/2 openable in most cases. Each sleeping room shall have one emergency egress opening directly to the outside. Ask for specific requirements. c) Show all other code-related requirements such as smoke detectors, door sizes, landings, stairs, rise and run, handrails, guardrails, safety glazing, and security requirements. Roof coverings shall be at least Class B fire rated. Show under-floor and attic access and ventilation. Show all wall, floor and ceiling insulation. ELEVATIONS Must be drawn to scale, showing building height, exterior materials, and the locations of doors, windows, exterior stairs, chimneys, facia, eaves, cornices, wall facings, brickwork, and any other architectural features. STRUCTURAL PLANS a) A foundation, floor framing (when required), and a roof framing plan is required to show all footings, anchor bolts, rebar, sills, rafters, joists, ridges, beams, headers, supports, and span and spacing of members. b) Clearly detail all conditions that do not conform to the standard framing shown on a type five sheet. c) Clearly show wall bracing such as plywood or stucco. Usually at least 4 feet every 25 feet is required. Engineering is Required for any structure not conforming to the conventional light, wood framing and bracing requirements of UBC Section 2308. Examples of some projects requiring engineering are: unusual or irregular shapes or sizes, second stories, vaulted ceilings, long span beams (over 16 feet), and structural steel. Structural plans and calculations are required to be prepared under the direction of a California State Professional Engineer or Architect and stamped and signed upon submittal. (rev.021308)
SAMPLE PLOT PLAN FOR SINGLE FAMILY DWELLING ADDITIONS A plot plan is required for any single family addition or alteration involving a change to the site. A plot plan is required to be submitted on letter or legal size paper (8-1/2 x 11 or 8-1/2x14). Submit two (2) reproduction copies as part of your permit application. (rev.021308) Use this example as a guide to draw your own plot plan. Show as much information as possible. Plans shall be drawn to scale, with a straight edge, and with enough clarity to show conformance with applicable regulations. Actual conditions and requirements may differ from this example. Side Yard Set Back 8 10 N.Patio (8 x10 ) 80ft. PL Rear Yard Set Back 30 Addition (30 x25 ) 25 Project Data (For example only) Owner: Mr. & Mrs. Citizen Address: 1234 Street Name Designer: By owner Description: Addition of bedroom, bathroom, and patio Building Code Occupancy: R-3 (single family) Type of Construction: V-N Code: 2007 CBC 100 ft. PL Ex. House Ex. Garage Drive- Way Ex.Porch 80 ft. PL d/w approach Sidewalk Front Yard Set Back Face of Curb Side Yard Set Back Parkway Width Area (s.f.): Dwelling 1450 Garage 400 Porch 80 Subtotal 1930 Area (s.f.): Dwelling 750 Patio 80 Subtotal 830 s.f. Grand Total (s.f.) 2760 Lot Size: 100 x 80 =8000 s.f. Lot Coverage = 2760/8000 = 34.5 % Allowable Coverage =35 % (ok) 34.5% < 35% Street Name N Scale: 1-0 = 20-0 Fire Hydrant
Incorporated 1923 1444 W, Garvey - (626) 939-8425 Sample Floor Plan for Single Family Dwelling Additions A floor plan is required as part of the submittal for the permit application for any single family addition or alteration. Submit two (2) reproduction copies of the complete set of plans as part of your permit application. Use this example as a guide to draw your own floor plan. Clearly distinguish between all new, existing and removed walls, construction, and other features such as windows. Include all adjacent rooms and any other room affected by the new construction. Provide dimensions of all walls, room sizes, doors, and windows. Verify windows meet light (min. 8% of floor area), ventilation (min. 4% of floor area), and egress size requirements. Show as much information as possible. Plans shall be drawn to scale, with a straight edge, and with enough clarity to show conformance with applicable regulations. Actual conditions and requirements may differ from this example. (say/addnfloorplan/021308) 30-0 8 0 x4 0 Sliding Window (44 sill) 8 17-0 Open Patio Cover (8 x10 ) 4 0 x6 0 Slidg. Window Hall Bedroom (30 x17 = 510 s.f.) Walk- In Clos. Bathrm. 24 min. Clos. Remove and Fill Ex. Kitchen ( No Changes) 30 x30 attic access 4 0-5 0 Window Ex. Bed Room (18 x16 =288 sf) 3 0 x6 8 Door (typ) Fan (5 air Ch. per Hr.) 30 min. Ex. 5 0 x6 0 Sliding Window (44 sill ht.) Legend = Hard-wired (may be battery in existing) smoke detector w/ battery back-up Ex. Living Room (No Changes) Hall Ex. Bath- Room Ex. B.R.. Wall Wall Demo Window
SAMPLE ELEVATIONS FOR SINGLE FAMILY DWELLING ADDITION ELEVATIONS Must be drawn to scale, showing building height, exterior materials, and the locations of doors, windows, exterior stairs, chimneys, facia, eaves, cornices, wall facings, brickwork, and any other architectural features. (rev. 021308) Class B Dimensional Comp Shingles Finish floor to be +6 above finish grade or finish surface East Elevation Scale: 1/8 = 1 0 2x8 wood facia to match existing Stucco to match existing Class B Dimensional Comp Shingles +15-0 Roof slope: 4 in 12 Attic vents Patio 4x4 posts, 4x10 beams, and 3x3 trellis at 10 o/c. See Patio handout. Stucco Ex. Sliding Glass door 8 x 4 sliding window +14 0 Weep screed +4 above earth and 2 above paving typ. Stucco to match existing North Elevation Scale: 1/8 = 1 0 attic vent windows +9 0 Eave 18 typical 4 x6 Sliding Window Patio West Elevation Scale: 1/8 = 1 0
SAMPLE STRUCTURAL PLANS FOR SINGLE FAMILY DWELLING ADDITIONS STRUCTURAL PLANS (Scale min.! = 1 ) a) A foundation, floor framing (when required), and a roof framing plan is required to show all footings, anchor bolts, rebar, sills, rafters, joists, ridges, beams, supports, and span and spacing of members. Framing sections may be required. b) Clearly detail all conditions that do not conform to the standards shown on the type V sheet. c) Clearly show wall bracing such as plywood or stucco. At least 4 feet every 25 feet is required. Engineering is Required for any structure not conforming to the conventional light, wood framing and bracing requirements of CBC Section 2308. Examples of some projects requiring engineering are: unusual or irregular shapes or sizes, second stories, vaulted ceilings, long span beams (over 16 feet), and structural steel. Structural plans and calculations are required to be prepared under the direction of a California State Professional Engineer or Architect and stamped and signed upon submittal. (addn.framing/021308) slab 4 slab o/ w.w.m.f. 5/8 diameter x 10 min. long anchor bolt w/ 2 x2 x3/16 sq washer 4 o/c, w/ 7 embed. at single pour! gyp.bd. #4 rebar top and bottom Foundation Plan 3 clear A galv. stucco weep screed is required 4 above earth and 2 above conc. 12 12 wide footing, see detail C 12 -#4 rebar dowel new to exist top and bottom 2x4 stud at 16 o/c 2x4 p.t. sill Stucco o/ (2) bldg. paper o/ plywood 8 above f.g. or f.s. 12 below nat. soil Detail C Class B comp shingles o/ (2)-15# felt, o/ 1/2 cdx plywood w/ 10d at 6 &12 See standard patio plan roof Strap top plates to Ex. 2x8 Roof rafters at 16 o/c 2x8 Ceiling joist at 16 o/c! cdx plywd. 5-16d nails A35 48 oc R-13 Ins. R-19 Ins. See type V sheet 2x10 ridge 5/8 t&g plywd. 18 R-30 Ins. 4 slab Roof Framing 4x6 header 4x8 header = 3/8 plywd. shearwall w/ 8d at 6 & 12! gyp.bd. 2x12 F.J at 16 o/c 2x8 C.J. 2x8 R.R. Double 2x4 top plates Section Sec. A 2x10 ridge Cal. frame See C
GENERAL BUILDING NOTES EFFECTIVE CODE: 2007 CBC 1. Provide smoke detectors as required by CBC 907.2.10. Locate in each sleeping room and at a point centrally located in each hall or area giving access to each sleeping area. A minimum of one smoke detector is required on each story. Smoke detector must be hard-wired in new construction w/battery back up and audible in all sleeping areas. May be solely battery operated in existing construction. 2. All bedrooms, dens, libraries, or similar rooms, which can be readily used as a sleeping room, must have an exterior window for emergency egress per CBC 1026.2. This window must have an open-able area of 5.7 square feet with a minimum 20 width and a minimum 24 height. Note that height of this window is 44 above the floor. 3. Any glass within 60 of tub or shower floor must be tempered per CBC 2406.3 (5). 4. Any individual panes of glass over 9 square feet and within 18 of floor shall be tempered per 2406.3 (7). 5. Any glass in doors or in sidelight(s) within 24 of either door edge per CBC 2406.3 (6) or within 40 of any locking mechanism (per West Covina Security Ordinance) shall be fully tempered. 6. All electrical is to be installed per 2007 CEC. 7. Light fixture over tub or shower to be approved for wet use per CEC 410-4(a). 8. Ultra low flush (1.6-gallon max.) toilets and urinals are required. 9. Minimum 30 wide compartment and minimum 24 clearance in front for the water closet are required. 10. Size of shower stall to comply with CPC 411.7, 1024 sq. in. minimum interior and encompassing a 30 circle. 11. Comply with West Covina Security Ordinance. 12. Anchored bolts shall be minimum of 5/8 diameter, 10 long @ 6 O.C. starting 12 from corners with 7 embedment in concrete with square washer 2 x 2 x 3/16. 13. Ceiling insulation shall be minimum R-30. 14. Wall insulation shall be minimum R-13. 15. Raised floor insulation shall be minimum R-19. 16. Windows shall have U-Value of.75 (Dual Pane Aluminum Frame windows are deemed to meet this U- Value). 17. Any east or west facing windows must have a maximum shading coefficient of.40. To comply; specify on plans white venetian or mini blinds on any east or west facing windows to be installed at final inspection OR specify on plans to install windows labeled by the manufacturer to have a maximum shading coefficient (SC) of.40 (such as dual pane low E windows). 18. No electric space heating or cooling allowed. 19. General lighting in kitchen and in water closet room must be florescent. Additional task lighting may be incandescent and must be switched separately.