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Location and Projects

Address
522 Lefferts Ave, Brooklyn, NY, 11225
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Ecostruct Construction

Ecostruct LLC is the Tri State area's premier high performance design/build firm, providing a holistic approach to residential and commercial construction and development. As a Passive House and LEED certified design-build and consulting firm, we specialize in sustainable construction, design and management services with an emphasis on whole home renovations and new construction.

Project budget range - $150,000 - $15M+

Custom Furniture & Millwork $1,200/linear foot
Kitchen & Bath Renovations $150K
Whole Home Renovations $600K
New Single-Family Construction from $1.2M
New Multi-Family Construction from $1.8M

While we prefer to provide full design/build services, we work with all third party architects and engineers. All design work will be approached with high performance in mind. Actual costs will vary based on scope of work and location.

As a US Passive House Institute certified Trade company and a LEED Accredited Professional firm, Ecostruct is committed to providing comprehensive single-family and multi-family whole-building energy analyses, ensuring the most efficient design, construction and management services possible.

Contact us directly for a free consultation about your project.

From BuildZoom: Ecostruct LLC, 522 Lefferts Ave, Brooklyn, NY (Owned by: Jonathan Eklund) holds a Home Improvement Contractor license and 5 other licenses according to the New York license board.

Their BuildZoom score of 118 ranks in the top 1% of 77,888 New York licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Ecostruct LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Ecostruct LLC Contact Information

Phone: (646) 262-0216
Address: 522 Lefferts Ave, Brooklyn, NY 11225

Ecostruct LLC Brooklyn

Quality

118
99th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Ecostruct LLC has a BuildZoom score of 118, which places them above 99% of 77,888 contractors in New York.

Activity

4 projects
 2025
6 projects
 2024
2 projects
 2023
Our building permit records indicate that Ecostruct LLC has worked on at least 12.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Pricing

1 project
 < $5k
2 projects
 $5k-$20k
3 projects
 $20k-$50k
1 project
 $50k-$100k
5 projects
 $100k-$250k
2 projects
 $250k-$500k
3 projects
 $500k-$1mil
Value Not Public: 0 projects
The typical size of their permits is approximately $101,336. This graph shows the distribution of these job values.
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Ecostruct LLC Reviews
5 out of 5 stars, based on 1 review

  • By Sameer G.
    May 10, 2017
    Verified Hire

    Ecostruct was really great! I still call Jon Eklund first for almost all my home related work!

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Building Permits by Ecostruct LLC

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

General construction
591 Fourth St, Brooklyn, NY
2025-08-07
Interior demolition to include partitions ceiling floors doors and general construction to include the relocation of interior stairs as per plans filed herewith. no change to occupancy use or egress
Valuation:
$741,226
Permit #:
B01079999-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
48 E 63rd St, New York, NY, 10065
2025-08-11
Interior renovation of existing townhouse as per plans filed herewith. no change to use egress or occupancy. alt1 job to convert 2 family home into single family home has been filed and approved under separate job #m00781537
Valuation:
$350,000
Permit #:
M01214160-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural
205 Clinton St, Brooklyn, NY, 11201
2024-08-03
Proposed conversion of an existing four (4) stories with cellar 4-families residential building to a one (1) family building with horizontal extension at rear; cmu steel and metal joist will be proposed for structural design
Valuation:
$682,250
Permit #:
B00635905-S4-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Earth work
205 Clinton St, Brooklyn, NY, 11201
2024-08-03
Proposed conversion of an existing four (4) stories with cellar 4-families residential building to a one (1) family building with horizontal extension at rear reinforced concrete footing and foundation wall will be proposed for foundation design
Valuation:
$200,000
Permit #:
B00635905-S3-FO-EA
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural
591 Fourth St, Brooklyn, NY
2025-08-07
Structural work to include demolition & portion of rear masonry wall interior stair b installation structural framing bracing wood joist & girders install steel column and support/framing related to hvac dunnage related building renovation as plans
Valuation:
$35,273
Permit #:
B01086889-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical systems
591 Fourth St, Brooklyn, NY
2025-08-07
Mechanical work to include installation of heating system hvac units related piping and ductwork associated with renovation of building as per plans filed herewith. no change to occupancy use or egress
Valuation:
$102,672
Permit #:
B01091253-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
250 West St, New York, NY, 10013
2024-08-03
Combination of apartments 10d and 10e on 10th floor per tpp 3/97. removal of one kitchen minor non-load bearing partition work. no change to occupancy use or egress
Valuation:
$668,085
Permit #:
M01001210-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
15 Orient Ave, Brooklyn, NY, 11211
2024-08-03
General construction for the interior and exterior renovation of an existing one family house as per plans filed herewith. no change in use egress or occuapancy
Valuation:
$257,300
Permit #:
B08036287-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
205 Clinton St, Brooklyn, NY, 11201
2024-08-03
Convert existing 4 stories w/cellar 4 families residential building to a one family building with horizontal extension at the rear
Valuation:
$686,250
Permit #:
B00635905-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Foundation
205 Clinton St, Brooklyn, NY, 11201
2024-08-03
Proposed conversion of an existing four (4) stories with cellar 4-families residential building to a one (1) family building with horizontal extension at rear reinforced concrete footing and foundation wall will be proposed for foundation design
Valuation:
$50,000
Permit #:
B00635905-Z1-FO
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
36 Grace Ct, Brooklyn, NY, 11201
2024-07-01
Herewith filing application for interior renovation non-structural demolish removal and disposal on interior partitions and finishes. installation of new partitions finishes and fixtures. no change in use egress or occupancy
Valuation:
$154,056
Permit #:
B00861398-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
207 Sterling Pl, Brooklyn, NY, 11238
2024-03-20
Remove existing deck exterior stair partitions and doors. install new deck guardrails new doors and windows steel access stair from deck to rear yard as shown on drawings. structural work filed under separate application b00795645
Valuation:
$20,000
Permit #:
B00745341-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construction fence
205 Clinton St, Brooklyn, NY, 11201
2024-08-03
Proposed temporary construction fence @ ground floor. the fence is outside of the property line and extending beyond three feet of the property line. this job will be filed in conjunction with a1 work at 205 clinton street a1 job#b00635905-i1
Valuation:
$1,200
Permit #:
B00635905-S8-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
7518 3rd Ave, Brooklyn, NY, 11209
2023-08-03
Interior renovation of an existing 3-story building with cellar conversion from a store and 2 dwelling to accessory use and professional services. remove/install partitions and cap/remove and install plumbing as per plans
Valuation:
$158,950
Permit #:
B00826079-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural
15 Orient Ave, Brooklyn, NY, 11211
2024-08-03
Structural scope in conjunction with the interioe renovation of an existing one family house as per plans filed herewith. no change in use egress or occupancy
Valuation:
$132,000
Permit #:
B00858695-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
General construction
337 Bay Ridge Pkwy, Brooklyn, NY, 11209
2022-10-29
Selective moderate interior renovation of existing 2 story townhouse 001 & 002 floors consisting of partitions gwb tilework cosmetic finishes. exterior work enlarge door opening in rear install skylight on roof. no change to egress occupancy use
Valuation:
$132,300
Permit #:
B00750914-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural
207 Sterling Pl, Brooklyn, NY, 11238
2024-03-20
Proposed structural work at rear wall on east side lot line and rear courtyard as per plans filed. herewith. no change in use egress or occupancy. filed in conjunction with construction application # b00745341
Valuation:
$10,000
Permit #:
B00795645-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical systems
15 Orient Ave, Brooklyn, NY, 11211
2024-08-03
Mechanical scope of work in conjunction with single family home as per plans filed herewith. no change in use egress or occuancy
Valuation:
$50,000
Permit #:
B00929696-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical systems
205 Clinton St, Brooklyn, NY, 11201
2025-05-01
Proposed mechanical work file in conjunction with gc #b00635905-i1
Valuation:
$54,000
Permit #:
B00635905-S6-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Support of excavation
205 Clinton St, Brooklyn, NY, 11201
2024-08-03
Support of excavation for proposed addition and cellar extension
Valuation:
$100,000
Permit #:
B00635905-Z5-SE
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A