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Record Number: 7053911-CN:

Construction Permit

Record Status: Issued

Expiration Date: 12/12/2026

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Work Location

3810 42ND AVE SW
155748 *

Record Details

Project Description

COOMBES 3810 42ND AVE SW
Construct west two-family dwelling, per plan. (Establish use as single family residence with attached and detached accessory dwelling units per land use code. Construct new one- and two-family dwellings, per plan. Review and processing for two records under 7053911-CN)

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Application Information

PERMIT APPLICATION COMMON

Where on your property are you working?:

Onsite + ROW

Is work in the right-of-way (street or alley) required?:

Yes

Choose the Primary Property Use:

Single Family/Duplex

Project Value:

750000

PERMIT TRACKING COMMON

Review Level:

Full C

Application Completed Date:

01/06/2025

Permit Issued Date:

06/12/2025

Permit Remarks:

ASSIGNED ADDRESSES: SFR - 3810 42ND AVE SW AADU - 3808 42ND AVE SW DADU - 3806 42ND AVE SW

FLOATING RESIDENCE INFO

Is this building a Floating Residence?:

CONSTRUCTION VALUATION INFO

Intake Value: New:

663433

Intake Value: Alteration:

Total Intake Value:

663433

Issue Value: New:

663433

Issue Value: Alteration:

Total Issued Value:

663433

BUILDING CODE INFO

What building code was used for your design?:

2021 SBC (Struct) and SRC (Arch)

Is this a substantial alteration?:

Are you changing the envelope?:

Action Type:

New

Number of Existing Building Stories:

Number of Existing Below-Grade Building Stories:

Number of Proposed Building Stories:

Number of Proposed Below-Grade Building Stories:

Number of Mezzanines:

Is a certificate of occupancy required?:

GROUND DISTURBANCE

Is your development site in an environmentally critical area (ECA)?:

New and Replaced Hard Surface > 750 sq ft?:

Yes

Are you doing more than 2,000 square feet of earth disturbance?:

Yes

I, the owner or owner’s authorized representative of the property referenced in this submission, give the City of Seattle Department of Planning and Development permission to conduct a Pre-Application Site Visit. I agree that: 1) electronic filing constitutes an authorizing signature; 2) I will inform all tenants of the site visit prior to the inspection being conducted; and 3) if conditions such as uncontrolled dogs or uncooperative tenants hinder the inspector’s ability to conduct the site visit, the site visit will not occur and the site visit fee may be forfeited.:

Yes

Foundation Type:

Basement

LAND USE STREET ELEMENTS

Number of Curb Cuts for This Permit:

PARKING

# of Proposed Onsite Parking:

Tenant Relocation Assistance

Are there residential (non-commercial) tenants/renters currently living in the property? :

ENERGY CODE

Compliance Category:

Residential

Compliance Path:

Total UA Alternative

ENERGY EQUIPMENT

Heating Fuel Type Proposed: Residential:

Electric Heat Pump

SIDE SEWER INFORMATION

Other Information

LAND USE PROPOSED

Use:

Single-Family Dwelling Unit

Sq. Ft.:

Floor(s):

n/a

HOUSING UNITS

Type of Housing Unit:

Detached Single-Family

Number of Existing Units:

Number of Removed Units:

Number of Added Units:

Number of Sleeping Rooms:

Type of Housing Unit:

Accessory Dwelling, Attached

Number of Existing Units:

Number of Removed Units:

Number of Added Units:

Number of Sleeping Rooms:

BUILDING USE & OCCUPANCY

Floor or Area:

L1-L3

Floor Area (square feet):

3234

Occupancy Group:

R-3 Duplex

Type of Construction:

Type VB

Other Occupancy Type:

SFR + AADU

Sprinkler Standard:

None

Floor or Area:

Floor Area (square feet):

230

Occupancy Group:

U Private Garage

Type of Construction:

Type VB

Sprinkler Standard:

None

Floor or Area:

Roof

Floor Area (square feet):

680

Occupancy Group:

Other U Occupancy

Type of Construction:

Type VB

Other Occupancy Type:

Roof Decks

Sprinkler Standard:

None

REQUIRED DOCUMENTS

Must this be recorded?:

GREEN BUILDING

Green Requirement:

Code Required (23.58D)

Subtype:

Density

FENESTRATION

Occupancy Group:

Single Family Residential

Fenestration Type:

Opaque Door

U Max:

0.28

Occupancy Group:

Single Family Residential

Fenestration Type:

Vertical Glazing

U Max:

0.28

OPAQUE ELEMENTS

Occupancy Group:

Single Family Residential

Insulation Assembly:

Roof or Ceiling Single Rafter

Cavity R-Value:

Occupancy Group:

Single Family Residential

Insulation Assembly:

Roof or Ceiling Attic

Cavity R-Value:

Occupancy Group:

Single Family Residential

Insulation Assembly:

Wall: Above Grade Wood Framing

Cavity R-Value:

Occupancy Group:

Single Family Residential

Insulation Assembly:

Floor Over Unconditioned Space

Cavity R-Value:

Occupancy Group:

Single Family Residential

Insulation Assembly:

Floor: Slab on Grade

Cont R-Value:

Occupancy Group:

Single Family Residential

Insulation Assembly:

Wall: Below Grade

Cavity R-Value:

Cont R-Value:

Occupancy Group:

Single Family Residential

Insulation Assembly:

Wall: Below Grade

Cont R-Value:

RESIDENTIAL ENERGY EQUIP SIZES

Unit ID:

SFR

Allowance Factor:

1.25

Minimum BTUs:

28875

Unit ID:

AADU

Allowance Factor:

1.25

Minimum BTUs:

15278

Unit ID:

DADU

Allowance Factor:

1.25

Minimum BTUs:

15082

RESIDENTIAL ENERGY EFFICIENCY

Energy Credit Option:

21-CR 3.0, System Type 4

Energy Credit Option:

21-CR 2.0, All Other Groups, Option 3.7 – Efficient Building Option

Energy Credit Option:

21-CR 0.5, All Other Groups, Option 5.1 – Efficient Building Option

Energy Credit Option:

21-CR 2.0, All Other Groups, Option 5.6 – Efficient Building Option

Energy Credit Option:

21-CR 0.5, All Other Groups, Option 7.1 – Efficient Building Option

Energy Credit Option:

21-CR 3.0, System Type 4

Energy Credit Option:

21-CR 2.0, All Other Groups, Option 3.7 – Efficient Building Option

Energy Credit Option:

21-CR 2.0, All Other Groups, Option 5.6 – Efficient Building Option

Parcel Information

Fees

You can find all fees assessed to date for your application or permit listed below.

For your outstanding fees:

To view or print a statement of fees due, select Reports in the upper right corner and select Fees Due Statement.
To make a credit card payment, select the Pay Fees link. For additional information, see How to Pay Fees.

For your paid fees:

To view or print your receipt, select the View Receipt link.
To view or print a report of all fees assessed and payments received to date, select Reports in the upper right corner and select Payment and Fee Detail.

Inspections & Appointments

To view all inspections on this permit, click the Reports link in the upper right, next to the Login button. It displays all inspections submitted into our system by the end of the previous day.

Common Inspection Tips:

To schedule a Pre-Construction Conference or Grading Season meeting, please call (206) 684-8860 between 7:30 AM and 4:00 PM, Monday - Friday.
To schedule an on-site or phone consultation with your inspector: Schedule an Advisory inspection if it's listed below in "The Following Are Required" section. If it's not listed below, schedule the Advisory inspection by calling the Inspection Scheduling Line at (206) 684-8950.
To schedule a Land Use/Design Review inspection, please email the assigned Land Use Planner at least one week before the desired inspection date. Their information is displayed on the construction permit face.
To find the inspector performing your inspection: Search for your Scheduled inspection below in "The Following Are Required:" You may have to click Next if there are multiple pages. Your assigned inspector's name will appear below the inspection type.
For Side Sewer permits, Sanitary Final and Drainage Final inspections cannot be scheduled online. Please schedule a Sanitary Cover or Drainage Cover for all side sewer inspection needs.
If you are having any other issues scheduling an inspection, please call our Inspection Scheduling Line at (206) 684-8950 between 7:30 AM and 4:00 PM, Monday - Friday.
For Developer Contribution Housing Inspections only, contact the Office of Housing.

The Following Are Required:

Schedule or Request an Inspection

There are no required inspections for this record number.

The Following Are Completed:

There are no completed inspections for this record number.

Attachments

To upload your document, you need to attach it to your application. After selecting your documents, choose a Type and add a Description for each document.

The maximum file size allowed is 1000 MB.

386;3gr;add;ade;adp;asp;bas;bat;cad;chm;cmd;com;com;cpl;crt;dbx;dif;dll;docm;dot;dotm;dotx;dwg;dxf;exe;fon;hlp;hta;htm;html;inf;ins;isp;jar;js;jse;lib;lnk;mdb;mde;mht;mhtml;msc;msi;msp;mst;ocx;odt;pcd;php;pif;ppt;pptm;pptx;prn;rar;reg;rtf;scr;sct;shb;shs;slk;sys;txt;url;vb;vb[usrv:es];vbe;vbs;vxd;wps;ws[usrv:cfh];wsc;wsf;wsh;xla;xlam;xlsb;xlsm;xlt;xml;zip are disallowed file types to upload.

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Notes

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Record Number: 7053911-CN:

Construction Permit

Record Status: Issued

Expiration Date: 12/12/2026

Work Location

Record Details

Project Description

More Details

Application Information

Other Information

Parcel Information

Development Site Parcel:DV1105437 *Block:--Lot:--Subdivision:--

Fees

Inspections & Appointments

The Following Are Required:

The Following Are Completed:

Attachments

Notes

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Right Of Way Management

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Development Site Parcel:DV1105437 *
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