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Rear Yard Variance-Cole Prop.August 15, 1989 \ i Y 0 REAR YARD VARIANCE — COLE PROPERTIES 201 West Park Road Planning Report :VN89 -2 Proposed Action. Staff recommends approval of the following motion: "Move approval of Resolution No. Z89 -20 recommending approval of a 25 foot rear yard setback variance." Approval of this motion will allow construction of a hone 10 feet from the rear lot line. Overview. The applicant is requesting a 25 foot rear yard setback variance to construct a single family home at 201 West Park Road. The subject lot is a corner lot. The front yard is Second Street north, which makes the north lot line the rear yard. The subject lot is zoned R -1 -C, which requires a 35 foot rear yard setback. The subject lot has bad soil and an unusual shape. In 1968 and 1978 the lot was granted a setback variance because of poor soil conditions. The homes that were granted the variance were never built. Staff is recommending approval of the rear yard variance because of the poor soil conditions. Primary Issues to Consider. o Does the subject lot have an undue hardship? o Are there unique circumstances to the subject property? Supporting Documents. o Background o Alternatives o Location Map o Soil Boring Report o Resolution No. Z89 -20 141L., fA • 111.111 Nancy . Anderson, Planner Detailed Background. VARIANCE - COLE PROPERTIES VN:89 -2 Page 2 Lot Description. The subject lot is a corner lot at the intersection of Second Street North and West Park Road. Second Street North is the front yard because it is the narrower frontage. The north lot line then becomes the rear lot line, which the applicant is requesting a variance. The easterly lot line has a 10 foot easement for drainage. The north end of the lot is higher than the south end. Soil Conditions. In 1967 soil borings were taken at the subject site. The report indicated that any home on the site would require pilings. The report also stated that "the length of piling could be minimized by holding the house as close as possible to the north lot line ". The home to the north is approximately 30 feet from the lot line. The home to the north can build within 10 feet of the applicant's north lot line because it is that lots side lot line. • Proposed Setbacks. Below is a list of setbacks for the R -1 -C district and the proposed home: Front yard Side yard (east) Side yard (west) Rear yard R -1 -C 30 feet 10 feet 10 feet 35 feet Proposed Home 50 feet 23 feet 15 feet 10 feet The home as proposed meets the side and front setbacks. Primary Issues to Consider. o Does the subject lot have an undue hardship? Soil borings indicate that the subject lot does have poor soil conditions. The past history of the lot indicates that at two tines previously, variances have been granted because of poor soil conditions. The soil boring report recommends that the length of the pilings can be minimized by keeping the proposed home as close to the north lot line as possible. The home to the north of the applicants property is on pilings. 4 11 0 The lot also has a 10 foot drainage easement on the east lot line. • VARIANCE - COLE PROPERTIES VN:89 -2 Page 3 By keeping the proposed home close to the north lot line, it also minimizes the variances needed. If the proposed home were to be moved further south to meet the rear and front yard setback requirements, another problem exists. The lot narrows to the south so the side yard setbacks would not be met. o Are there unique circumstances to the subject property? The subject property presents a number of unique circumstances. The following is a list of the unique circumstances: o poor soil in the lot o 10 foot drainage easement on the east lot line. o the shape of the lot, it narrows to the south. The most logical place to put a home is on the northerly part of the lot. At the south end of the lot there is poor soil, and more setback problems. Alternatives. 1. Approve the variance as recommended by staff to allow a 25 foot variance. By approving the variance the applicant will be able to construct the proposed home. 2. Approve the variance with additions /changes. If the Commission feels that additional conditions should be added, it should be done at this time. 3. Deny the variance to allow a 10 foot rear yard setback. Should the Planning Commission recommend denial, Findings of fact would have to be made to support the denial. 4. Continue for further information or analysis. If the Commission feels further information is needed, the item should be continued. 11 (25) 10( 0 (20) 6 9 (23) (17) 7 (21) .� (30) 3 N 9 (36) (31) 4 (18) 5 (28) 1 (2 9) 2 N (32) 5 6 x)( 3 29(52) a 28 (51) 27!50) 26(49 '25(48 itt 24 23(4 M 22 21(4 2 0 I9 — I S (45 I7 _ 16 21(67) 2 - 4 (42) 5 6 (55) 4 N -- 14 -6 (62) 15 N v- 13 (27) N (14) 1 (15) 2 rnN N \ • ' ' 10 (37) / II (38) �(i34) 19 18(64) - 17 I N 16 (63) (44)15 (54,_1 14 2 0 N 3 (iQ) I — 28 ( — — 27 _ _ 4 ro _ _26 (32) 5 M 25(4Q _ 6 24. (33) 7 23 (34) 8 0 22 (35) 9 i g 21(40 10 ") � — 20 (36) 1 I 19(39 — 12 ' 18 (37) 13 a 17 (38) 14 - 16 — 15 k 3rd _,30 (90• 29 2 .(82 isr 26(88) t 25(87) 2406) 23 • 22(85) 21 N 20(84) 16(81) d— ST •0. 0,11 77• v.47 N0. (.•17 /11.0 - N0. •17I 4 40 OAK. •41 NONT. N0. I•1•.( 4 - CHO£LL • ENGINEER o • o, s 0 - e C G S FOR. '// /(;• / or' �/ ✓I_ S -1 7r ; /J tJ . \ J . v. • `7 / 7/ SCHOELL. & MADS'OT'L CERTIFICATE OF SURVEY c . c 6,- • g- • .72 o / 6' CT ) . ele ■.••• ENGINEERS 8 SURVEYORS • 00 NINTH AVENUE SOUTH HOPKMNs. MINNESOTA .NONE •3 set. v . fi'c^ - rrw��rrJ c�� l f. •• O/ rrl p , ., _ . QrY : INC. / REGISTERED IANO SURVEYOR •INl1 N0. •174 70. OAK. 7•1 WOO. NO 4-474 1Or/• 440 7704 NO. OAR. IIO• MONT. •0. 17.1.• N. N n ,y k, ci VI p 1 v 2 3 � WI 4 ■ N , J1'- t M • IJ ` k ii'0_ : . _ • • •1 L-.. � 38 i. 0 L �� • ::,r .� r_ i. BRAUN. P.E. • L. 615 NORTH COUNTY RO. 18 MINNEAPOLIS. MINN. 5541/• Re: 67 -270 October / Co &• 7 c"A`' E SOIL BORINGS South Part of Lot 8, Block 2 West Park Addition Hopkins, Minnesota • A t your request, soil borings were taken to assist in evaluating ot. A check of legal description with the City of Hopkins ren oundation conditions for a proposed house on the above referenced indicated that the lot immediately south of the existi X West Park Road is the south portion of Lot 8, in Block 2 of West Park Addition rather you the description ou g house at time the work was authorized. ' a small triangular tract south of theilotnwhichis r fr owns grading of 2nd Street. It would seem logical n.attempt be that aatt from the made to acquire that tract south portion 8. ract for inclusion with the ion of You indicated that the proposed house would be recta approximately 26,x 60 feet. Since topographic features of t h shape, indicated the greatest potential foundation problems on ea the rea of the lot, the two rear corners of the indicated house location selected for boring locations. These locations were st portions the northwest lot corner, where an iron monument was were on the attached sketch. Surface elevations re referenced to assumed bench mark, e taburfac on the existing as shown of the a nchnt intersection. The i s ing manhole fenind the an Park Road in line t ern n . e grade of the rift centerline centetrline oline of West fe center e t line was also referenced. OUR LETTERS ANO REPORTS ARE FOR THE EXCLUSIVE USE Of TNT ClITNT TO WHOM THET ARE ADDRESSED. ANO THEIR COMMUNICATION TO ANT OTHTRS. OR PUBLICATION OF STATEMENTS. CONCLUSIONS, OR EXTRACTS 1ROM OR REGARDING OUR REPEATS 15 RESERVED. P(NOING OUR WRIf TEN APPROVAL. BORINGS • TESTS • INSPECTION • ANALY • REPORTS • RECOMMENOAT IONS -- -'-_____-- 270 $4* ikealty, Inc. -2- 10/13/67 The borings were taken, on October 12, with a truck - mounted core and auger drill equipped with hollow -stem augers. Samples are taken with the standard 2 -inch OD split sampler, driven by a 140 -pound hammer falling 30- inches, thru the hollow -stem augers. Blows per'foot of penetration (BPF) were recorded. Use of hollow -stem auger equipment eliminated the driving of casing and use of jetting water. Mineral soils encountered in the borings were visually classified. in accordance with the U.S. Bureau of Chemistry and Soils Classification System. A copy of that chart is attached. Immediately before leaving the lot, the depth to water was measured and recorded in each boring. RESULTS Logs of soils encountered, water level observations, and penetration resistances are plotted on the attached soil boring log sheet. oth borings indicated 9 feet of fill over organic materials. These 11 materials were mostly sandy loams which were very soft. Eight et of organic materials were found to underlie the fill in boring T -1, the north boring. Boring ST -2 indicated 20 feet of soft organic materials below the fill. Judging from topographic features of the vicinity of the lot, the bottom of the organic soils would be expected to slope from north to south. Boring ST -1 encountered a thin stratum of sand below the organic materials and was terminated in grey or brown cohesive soils. Boring ST -2 encountered grey sandy clay loams below the organic materials and extending to the 40 -foot depth. Water levels were recorded at depths of 5.5 and 6.0 feet in borings ST -1 and ST -2 respectively. Water levels should be expected to show normal seasonal and annual fluctuations. RECOMMENDATIONS The soft inplace fill and underlying organic soils would undergo excessive and erratic settlement under footing and slab loads. These borings indicated organic materials extending as much as 23 feet below current water levels. Since it would-be virtually impossible to satisfactorily excavate such an extensive depth of organic material from below water, so that a compacted fill could be placed, it would be necessary to support all structural elements, including floor slabs of both the house and garage, on piling. Because the depth of organic materials is variable, required piling lengths would also be quite ariable. Judging from these two borings, it appears that Z0 -ton timber 'ling in the south portions of the.proposed house area would have to e as much as about 45 feet in length. The length of piling could be IOU [NI/NURIANI I/RVIC1 S. INC. f 111167 -270 Realty, rm. JSB:mlk Enclosures Very truly yours, -3- 10/13/67 minimized by holding the house as close as possible to the north lotline. OIL ENGINEERING SERVICES, INC. 41 1 7•1110 . Braun, P.E. oils Engineer Current water levels are about 10 or 11 feet below center -of- street grade in line with the north lotline. Assuming a typical basement depth on the order of 6 feet below the highest adjacent street grade, that is, in line with the north lotline, basement moisture problems are not anticipated. Of necessity, the area of the borings in relation to the area of the o.t,.. the depth of the boring, are limited. Suggestions and /or recommendations -_ this report - axe. ::opinions based up on_ the data obtained from the borings. If we can be of further assistance in evaluating these data, kindly contact us at your convenience. !O![ fR71/N/I RIMY IIRVIC(S. # 0,C RESOLUTION MAKING FINDINGS OF FACT AND RECOMMENDING APPROVAL OF APPLICATION FOR VARIANCE VN:89 -2 WHEREAS, an application for a Variance made by Cole Properties, for a setback variance is recommended WHEREAS, 1. 2. CITY OF HOPKINS Hennepin County, Minnesota RESOLUTION NO: Z89 -20 the procedural history of the follows: entitled VN89 -2 25 foot rear yard for approval. application is as That an application for Variance VN89 -2 was filed with the City of Hopkins on August 10, 1989. That the Hopkins Planning Commission reviewed such application on August 29, 1989. 3. That the Hopkins Planning Commission, pursuant to mailed notices, held a public hearing on August 29, 1989: all persons present at the hearing were given an opportunity to be heard. 4. That the written comments and analysis of the City Staff and the Planning Commission were considered. NOW THEREFORE BE IT RESOLVED, that application for Variance VN89 -2 is hereby recommended for approval subject to the following Findings of Fact: 1. That the subject lot has poor soil conditions. 2. That unique circumstances exist with the subject lot because of soil conditions, the shape of the lot and the drainage easement on the east property line. Adopted this 29 day of August, 1989. Toni Richardson, Chair