LEGO Modular Buildings Guide: Which Street Set to Buy First
Bottom line first: shop the Modular Buildings line by release year and retirement status before anything else. Newcomers should start with an in-production single building in the RMB 2,500–3,000 range, such as the Bookshop or the Corner Boutique. On a tight budget, wait for the June 18 or Double 11 sales and buy at roughly 20% off. Retired sets carry a 30%–80% premium on the secondary market, so there is no need to chase them.
LEGO Modular Buildings is the most collectible product line within modular construction. Each building stands about 26 cm wide and 33 cm tall and connects horizontally to the next through pins on the base, forming a brick street that keeps growing. Because the sets connect, retire and follow a numbering system, plenty of builders find they cannot stop after the first one. This guide sorts out the decision along four main lines.
1. Choose by Release Year and Retirement Status
The series has produced nearly 20 sets since Café Corner (10182) launched in 2007. In-production sets hold steady prices, while retired sets typically sell for 30%–80% above retail on the secondhand market; in-demand older models such as the Town Hall can even double. If value matters most, prioritize in-production sets from 2020 onward. Only pay extra for a retired model when you specifically need it to complete a street.
2. Choose by Price and Part Count
Current mainline modulars cluster around RMB 2,500–3,500, with most sets running 2,500–3,500 pieces and taking about 6–10 hours to build. For an entry point, look at a small-to-mid set of roughly 2,500 pieces priced near RMB 2,500. Flagship builds such as the City Center can exceed RMB 3,500 with more than 4,000 pieces — the strongest display presence, but also the largest footprint.
3. Choose by Theme and Interior Detail
Half the charm of a modular is the interior detail you can open up and look at. If you like everyday life scenes, pick the Bookshop (coffee corner plus attic) or the Corner Boutique (display windows plus spiral staircase). For night-time atmosphere, the Assembly Square brings street lamps and a fountain. For a big project, go for the City Center. Experienced builders also mix official sets with MOC instructions — https://brickplan.cn hosts plenty of fan-made street modifications, and recoloring or adding floors is straightforward.
4. Choose by Budget and Display Space
Divide your entry budget into three tiers: under RMB 3,000, buy one small or mid-size building to test the waters; RMB 5,000–8,000 lets you assemble 2–3 buildings into a small block; only above RMB 10,000 should you consider a longer connected row. Watch your display space too: a single building occupies roughly a 26×26 cm footprint, and a three-building row needs about 90 cm of shelf width. Measure the cabinet before you buy.
5. Pros and Cons
The strengths of the line are obvious: modular and connectable, a clear numbering system, high parts precision and strong value retention, with secondhand depreciation far lower than on regular sets. The drawbacks are just as clear: a high unit price (most mainline sets sit above RMB 2,500), a large footprint, and steep premiums on older models. Overall, modulars suit builders with room in the budget who enjoy long-term collecting and display. If you want a quick, short build, pick a smaller single set instead.
FAQ
Q: Which modular should be my first set?
A: The Bookshop or the Corner Boutique is the best first pick — around 2,500 pieces, roughly RMB 2,500, with rich interiors at a moderate price. Step up to a flagship such as the City Center once your budget allows.
Q: Are retired modular sets worth buying at a high price?
A: Unless you are completing a specific number in the series or genuinely love a particular building, chasing high prices is not recommended — retired models commonly carry a 30%–80% premium. If you are not in a hurry, wait for secondhand prices to come down.
Q: Can LEGO modulars be mixed with other brick street sets?
A: LEGO modular buildings are compatible with mainstream standard-brick street sets, and leftover parts from official sets can go into MOC modifications. You can find compatible instructions on brickplan.cn and expand freely.
Q: How long does a modular set take to build?
A: Mainline sets run 2,500–3,500 pieces, so at 1–2 hours a day expect roughly 6–10 hours, spread over 3–4 evenings. Sorting by color and bag number during the build noticeably speeds things up.
Q: What is the difference between Modular Buildings and the City line?
A: Modular Buildings sits at roughly 1:48 scale, connects with other sets and is aimed at collectors. The City line targets children, with a larger scale, more play features and lower prices — the brick specs and the visual style differ clearly.