# Building permits at 4640 Ludlow St, Boulder, CO 12 permits on record here. The newest, May 28: Install 4.2kW flush mounted PV system on roof of single family detached dwelling - 10 modules - ESS is. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | May 28, 2026 | Electrical | Install 4.2kW flush mounted PV system on roof of single family detached dwelling - 10 modules - ESS is existing *See ELE2026-00034 for ESS install* | $12,074 | [ELE2026-00467](https://nearbypermits.com/boulder/permit/ELE2026-00467/) | | Jan 20, 2026 | Electrical | Install 13.5kWh Tesla Powerwall Energy Storage System. No PV associated | $15,320 | [ELE2026-00034](https://nearbypermits.com/boulder/permit/ELE2026-00034/) | | May 12, 2017 | Mechanical (HVAC) | Installation of a replacement gas fired, 40k BTU, 38 gallon water heater. Install thermal expansion device, service outlet and carbon monoxide detector(s) per code. | $930 | [PMT2017-02028-MEC](https://nearbypermits.com/boulder/permit/PMT2017-02028-MEC/) | | Jun 24, 2014 | Plumbing | Addition and remodel to exisiting SFD. Scope of work includes a 240SF addition to main level with a new finished basement below, 124SF of remodel to upstairs, including bathroom and bedroom, 259SF remodel of basement bedrooms, and a new 203SF deck, with a new 28SF entry porch. Includes associated ME | $8,200 | [PMT2014-02038-PLB](https://nearbypermits.com/boulder/permit/PMT2014-02038-PLB/) | | Jun 24, 2014 | Mechanical (HVAC) | Addition and remodel to exisiting SFD. Scope of work includes a 240SF addition to main level with a new finished basement below, 124SF of remodel to upstairs, including bathroom and bedroom, 259SF remodel of basement bedrooms, and a new 203SF deck, with a new 28SF entry porch. Includes associated ME | $4,750 | [PMT2014-02038-MEC](https://nearbypermits.com/boulder/permit/PMT2014-02038-MEC/) | | Jun 24, 2014 | Electrical | Addition and remodel to exisiting SFD. Scope of work includes a 240SF addition to main level with a new finished basement below, 124SF of remodel to upstairs, including bathroom and bedroom, 259SF remodel of basement bedrooms, and a new 203SF deck, with a new 28SF entry porch. Includes associated ME | $10,300 | [PMT2014-02038-ELE](https://nearbypermits.com/boulder/permit/PMT2014-02038-ELE/) | | Jun 24, 2014 | Addition | Addition and remodel to exisiting SFD. Scope of work includes a 240SF addition to main level with a new finished basement below, 124SF of remodel to upstairs, including bathroom and bedroom, 259SF remodel of basement bedrooms, and a new 203SF deck, with a new 28SF entry porch. Includes associated ME | $150,000 | [PMT2014-02038](https://nearbypermits.com/boulder/permit/PMT2014-02038/) | | Aug 22, 2011 | Mechanical (HVAC) | Remodel of mechanical room and living room in lower level of residence to create 2 additional bedrooms and separate mechanical room. Includes closing-off interior door to attached garage and associated electrical and mechanical work. | $400 | [PMT2011-03584-MEC](https://nearbypermits.com/boulder/permit/PMT2011-03584-MEC/) | | Aug 22, 2011 | Electrical | Remodel of mechanical room and living room in lower level of residence to create 2 additional bedrooms and separate mechanical room. Includes closing-off interior door to attached garage and associated electrical and mechanical work. | $1,000 | [PMT2011-03584-ELE](https://nearbypermits.com/boulder/permit/PMT2011-03584-ELE/) | | Aug 22, 2011 | Alteration or repair | Remodel of mechanical room and living room in lower level of residence to create 2 additional bedrooms and separate mechanical room. Includes closing-off interior door to attached garage and associated electrical and mechanical work. | $8,076 | [PMT2011-03584](https://nearbypermits.com/boulder/permit/PMT2011-03584/) | | Aug 27, 2010 | Fence, wall or deck | Removal of an existing chainlink wire fence on the sides of the backyard -- installation of a replacement 6' high cedar privacy fence w/ returns to the house. | $2,100 | [PMT2010-03675-FEN](https://nearbypermits.com/boulder/permit/PMT2010-03675-FEN/) | | Sep 10, 2009 | Mechanical (HVAC) | Replace hot water heater | $783 | [PMT2009-03626-MEC](https://nearbypermits.com/boulder/permit/PMT2009-03626-MEC/) | ## More on this street Other addresses on Ludlow St with permits, nearest house number first: - [4650 Ludlow St](https://nearbypermits.com/boulder/address/4650-ludlow-st/): newest permit May 6, 2026 - [4620 Ludlow St](https://nearbypermits.com/boulder/address/4620-ludlow-st/): newest permit Oct 18, 2024 - [4675 Ludlow St](https://nearbypermits.com/boulder/address/4675-ludlow-st/): newest permit Sep 24, 2025 - [4685 Ludlow St](https://nearbypermits.com/boulder/address/4685-ludlow-st/): newest permit Jan 15, 2026 - [4735 Ludlow St](https://nearbypermits.com/boulder/address/4735-ludlow-st/): newest permit Mar 5, 2026 - [4760 Ludlow St](https://nearbypermits.com/boulder/address/4760-ludlow-st/): newest permit Feb 19, 2026 - [4785 Ludlow St](https://nearbypermits.com/boulder/address/4785-ludlow-st/): newest permit Jul 22, 2025 - [4475 Ludlow St](https://nearbypermits.com/boulder/address/4475-ludlow-st/): newest permit Dec 17, 2024 - [4425 Ludlow St](https://nearbypermits.com/boulder/address/4425-ludlow-st/): newest permit Mar 17, 2026 - [4380 Ludlow St](https://nearbypermits.com/boulder/address/4380-ludlow-st/): newest permit Dec 6, 2024 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 06:10 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 12 permits at this address: https://nearbypermits.com/boulder/address/4640-ludlow-st/