Browse
- Sets
- All Sets
- New Sets
- Recently Retired Sets
- Sets Retiring Soon
- Sets Available Soon
- Set Release Rumors
- Minifigs
- All Minifigs
- New Minifigs
- Recently Retired Minifigs
- Minifigs Retiring Soon
Deals
Analysis
- Sets
- Themes
- Subthemes
- Years
- Most Valuable
- Most Expensive
- Most Owned
- BE 100 Index
- Minifigures
- Most Valuable
- Most Owned
My CollectionSign In or Up

Sets
Basic
Basic Building Set

735 LEGO Basic Building Set

Name: LEGO Basic Building Set
Brand: LEGO
SKU: 735-1
Availability: InStock
Rating: 4.80 (38 reviews)

Images 4

LEGO 735 Basic Building Set is a vintage Basic set from 1990 valued at $462 for new and sealed sets, up 1115% from an original retail price of $37.99. Annual appreciation has averaged 4.29% since release. Used copies are valued between $103 and $176 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Basic Building Set since February 2017. Very high accuracy

LEGO 735-1 Basic Building Set is a Basic set released in 1990, containing 537 pieces. Also marketed as “Basic Advanced Builder Set - Battery Box,” it includes a battery box and motor with 9V electrical elements such as a siren and wired connections. The assortment combines standard bricks and plates with functional parts and accessories, including string reels, ladders, doors, tools, tires, and a Technic axle to support motorized builds. It provides components for creating a range of motorized and non-motorized models.

A new and sealed Basic Building Set is currently valued at around $462, with annual growth of approximately 4%. The average used price is $136 for those in good overall condition. Based on current trends, this set could be valued near $481 within the next year. New and sealed listings currently range from $400 to $504.

All regions

All regions 3
Europe 1
Canada 2

For Sale (New/Sealed)

	(ES) New in sealed box. Box excellent, seals intact. Ask for pictures or question by email...	$469.21 +1.7%
	(CA) New in Sealed BoxOne Price Tag Front End PanelSome MINOR Shelf WearMinor Tear Right E...	$500.76 +8.5%
	(CA) New in Sealed BoxOne Price Tag Front Box Top Right CornerVery LITTLE Shelf WearBox in...	$505.71 +9.6%

All regions

All regions 6
United States 1
Europe 3
Canada 1
United Kingdom 1

For Sale (Used)

	(UK) Used - Complete with instructions no box.	$113.50
	(US) Used - eBay listing for 735 Basic Building Set	$114.35
	(IT) Used - GOOD CONDITION,YES ISTRUCTION,NO BOX	$115.50
	(NL) Used - 100% complete with instructions. No box. Battery not tested. Good condition.	$116.40
	(CA) Used - VG Instructions VG Box VG	$135.23
	(CZ) Used - with instructions, works great, briks like new	$167.25

More sets in Basic


	1639 Basic Building Set Theme Basic Year 1990 Pieces 669 Availability Retired Buy this set at eBay Bricklink	Retail $19.99 Value $214.33 Growth +972.2% Annual growth 6.8% I own this set I want this set

	395-2 Build-N-Store Chest Theme Basic Year 1990 Pieces 535 Availability Retired Buy this set at Bricklink	Retail $39.99 I own this set I want this set

	1637 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 491 / 2 Availability Retired Buy this set at eBay	Retail $22.00 Value $44.13 Growth +100.6% Annual growth 2.0% I own this set I want this set

	1638 Basic Set Theme Basic Year 1990 Pieces 450 Availability Retired Buy this set at eBay Bricklink	Retail $19.99 Value $112.66 Growth +463.6% Annual growth 4.9% I own this set I want this set

	385-2 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 438 / 2 Availability Retired Buy this set at Bricklink	Retail $39.99 Value $87.60 Growth +119.1% Annual growth 2.2% I own this set I want this set

	545 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 408 / 2 Availability Retired Buy this set at eBay	Retail $19.99 Value $90.33 Growth +351.9% Annual growth 4.3% I own this set I want this set

	715 Basic Building Set Theme Basic Year 1990 Pieces 395 Availability Retired Buy this set at ebay Bricklink	Retail $17.99 Value $98.67 Growth +448.5% Annual growth 4.8% I own this set I want this set

	565-2 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 364 / 2 Availability Retired Buy this set at Bricklink	Retail $25.99 Value $115.71 Growth +345.2% Annual growth 5.4% I own this set I want this set

	535 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 345 / 2 Availability Retired Buy this set at eBay	Retail $14.99 Value $44.53 Growth +197.1% Annual growth 3.1% I own this set I want this set

	365-2 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 337 / 1 Availability Retired Buy this set at Bricklink	Retail $24.99 Value $97.35 Growth +289.6% Annual growth 2.5% I own this set I want this set

	725 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 319 / 2 Availability Retired Buy this set at eBay	Retail $37.99 Value $214.14 Growth +463.7% Annual growth 5.9% I own this set I want this set

	1636 Handy Bucket of Bricks Theme Basic Year 1990 Pieces / Minifigs 184 / 1 Availability Retired Buy this set at eBay Bricklink	Retail $14.99 Value $52.16 Growth +248.0% Annual growth 3.5% I own this set I want this set

	525 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 181 / 1 Availability Retired Buy this set at eBay	Retail $12.99 Value $159.99 Growth +1131.6% Annual growth 6.5% I own this set I want this set

	515 Basic Building Set Theme Basic Year 1990 Pieces 111 Availability Retired Buy this set at eBay	Retail $9.49 Value $23.27 Growth +145.2% Annual growth 3.5% I own this set I want this set

	325 Basic Building Set Theme Basic Year 1990 Pieces / Minifigs 104 / 1 Availability Retired Buy this set at eBay	Retail $17.99 Value $52.70 Growth +192.9% Annual growth 3.2% I own this set I want this set

	335 Basic Building Set Theme Basic Year 1990 Pieces 99 Availability Retired Buy this set at eBay Bricklink	Retail $19.99 Value $104.33 Growth +421.9% Annual growth 4.7% I own this set I want this set

	315 Basic Building Set Theme Basic Year 1990 Pieces 62 Availability Retired Buy this set at eBay Bricklink	Retail $17.99 Value $39.97 Growth +122.2% Annual growth 3.9% I own this set I want this set

	1679 Basic Building Set Theme Basic Year 1990 Pieces 43 Availability Retired Buy this set at eBay Bricklink	Retail $24.99 I own this set I want this set

	1676 Basic Building Set Theme Basic Year 1990 Pieces 22 Availability Retired Buy this set at eBay	Retail $24.99 Value $25.00 Growth +0.0% Annual growth 1.5% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

735-1

Name

Basic Building Set

Theme

Basic

Year

1990

Availability

Retired

Pieces

537 (PPP $0.07)

Set Pricing

Retail price

$37.99

New/Sealed

Value

$461.52

Growth

+1114.85%

Annual growth

+4.29% Decreasing

Rolling growth

+5.87% (Previous 12 months)

90-day change

6.42%

Used

Value

$135.50

Range

$103.19 - $175.69

Quick Buy

eBay

Buy

Price (new)

$447.67

Price (used)

$114.35

Bricklink

Buy

Lowest price

$350.00 (HK)

Highest price

$505.71

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$461.52

1 year forecast

$481.33+4.29%

5 year forecast

$559.64+21.26%

$532

$577

735 Basic Building Set is projected to be valued between $532 - $577 within five years.

Insights

Post-retirement performance for Basic Building Set (735) has been supported by scarcity of unopened examples and discontinued 9V electrical elements, and while the Basic theme and lack of minifigures narrow the buyer base and raise volatility, nostalgia for early 9V-era pieces keeps sealed copies in demand.

Set Facts

It was also called "Basic Advanced Builder Set - Battery Box" and included a battery box and motor.

Basic Building Set Reviews

38 ratings

4.8

Collectors

Investors

Theme Analysis

Basic

Sets

402

Years

1972 - 2003

Annual growth

+3.91% (this set +4.29%)

This set's annual growth (CAGR) vs. subtheme

Community Stats

Basic Building Set currently ranks #29 out of the top most owned sets in Basic.

#1Building Plate, Green

#2X-Large Baseplate Grey

#3Brick Separator, Green

#4Universal Building Set

#5Basic Building Set

#29Basic Building Set

#30Basic Building Set

#31Baseplate, Green

About Basic

The LEGO Basic theme, which began in the 1970s, was designed to be a more general, non-thematic series of sets. Unlike the themed sets that revolve around specific stories, characters, or concepts (e.g., space, city, or pirates), the Basic theme provided a collection of standard LEGO bricks and pieces, often in a variety of colors. The goal was to encourage free building and creativity without the confines of a specific theme or narrative.

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$461.52

Value (in a year)

$481.33

Value (in 2 years)

$501.20

Accuracy

0.960400 Very high

Statistical Model

Value (today)

$420.65

Value (in a year)

(Possible plateau)

Value (in two years)

(Possible plateau)

Accuracy

0.241337 Very low

Used

Machine Learning/AI Model

Value (today)

$135.50

Value (low range)

$103.19

Value (high range)

$175.69

Accuracy

0.905400 High

To learn more about how we calculate pricing and forecasting, check out our article on BrickEconomy’s Approach to LEGO Pricing and Future Value Predictions.

Region · United States (USD)

Theme · Light

Explore

Sets Minifigs Deals

About Us

About BrickEconomy Contact Us Support Us

Helpful Links

FAQs Widgets Sitemap

Follow BrickEconomy

Facebook

Twitter/X

Instagram

LEGO, the LEGO logo, the Minifigure and the brick and knob configurations are trademarks and/or copyrights of the LEGO Group of companies which does not sponsor, authorize or endorse this site.
BrickEconomy, the BrickEconomy logo and all content not covered by The LEGO Group's copyright is, unless otherwise stated, ©2026 BrickEconomy.

Change Region

Changes the pricing currency and date formats to a specific region. Adjusts pricing and date formats to region.