# I can't build on my UEFN MAP even on custom mesh or fornite props **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** World-Building, fortnite-creative, unreal-editor-for-fortnite, UEFN, question, fortnite\ **Created:** [April 9, 2025, 11:49am UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050 "2025-04-09T11:49:25Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![cobuura](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@cobuura](https://forums.unrealengine.com/u/cobuura)\ **Post date:** [April 9, 2025, 11:49am UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050/1 "2025-04-09T11:49:25Z")
### Summary Hello guys I started an UEFN project with “blank” template in UEFN, deleted every thing and started from scratch besides : island\_settings I built my whole map without testing the building, just navigating in the world with my character in uefn local session But to my surprise i’m not able to build I want to build on my custom mesh built in UEFN or blender, landscape created on UEFN and also on fortnite props I followed online tutorial to build on my custom props with creating Building prop blueprint with activating Structural Support options, you can see all my Blueprint settings in uploaded images I hide my landscape (the green layer in my images) and tried to build directly in on my custom mesh but still doesnt wokr You also have my island settings in images I saw people talking about “blocking build to prop” but cant see any option for that I created a new project with blank template and i was able to build but i cant see why Thanks guys ### Please select what you are reporting on: Unreal Editor for Fortnite ### What Type of Bug are you experiencing? World Building ### Steps to Reproduce None ### Expected Result None ### Observed Result None ### Platform(s) PC UEFN ### Upload an image ![Sans titre.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/e/3/0e396f9f923671aefc157ed5cbdf136c90415547.png) ![blue.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/b/7/1b7c51977fe9710b0b92b617eb70517bc773a0c9.png) ![BPP_Settings_2.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/a/b/1ab0dc9532230f4dc6681990c8e7bced647e8c82.png) ![BPP_Settings_3.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/a/a/b/aab4cd45ce727f9847c2a5cf3512d774709dec6b.png) ![BPP_Settings_1.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/8/6/d86ed46c35c5f7a4b5b109f2ca7642ad7fabf8ba.png) ![IslandSettings.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/3/7/237e69288ff316967035c43fc558b9f4ea82faf6.png) ---
**Author:** ![MoonBazMarti](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@MoonBazMarti](https://forums.unrealengine.com/u/MoonBazMarti)\ **Post date:** [April 12, 2025, 1:08pm UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050/2 "2025-04-12T13:08:10Z")
i’m also trying to figure that out. why i can’t attach builds on cliffs in game that i made in uefn empty world ---
**Author:** ![cobuura](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@cobuura](https://forums.unrealengine.com/u/cobuura)\ **Post date:** [April 12, 2025, 3:56pm UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050/3 "2025-04-12T15:56:00Z")
Share me your solution if you find out, i’m going crazy ---
**Author:** ![CreateJag](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/createjag/32/924239_2.png) [@CreateJag](https://forums.unrealengine.com/u/CreateJag)\ **Post date:** [April 14, 2025, 3:14pm UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050/4 "2025-04-14T15:14:39Z")
Hey @cobuura, From my experience, this is the best flow for making custom meshes that support player builds: 1. Create a Blueprint and select the Building Prop option. 2. In the Blueprint editor, select your mesh 3. Enable ‘Is Player Buildable’ 4. Enable ‘Do Not Block Building’ 5. Enable ‘Structurally Support Overlapping Actors’ 6. Compile your Blueprint 7. Drag your Blueprint in 8. Build on it! ---
**Author:** ![rise1](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/rise1/32/1050690_2.png) [@rise1](https://forums.unrealengine.com/u/rise1)\ **Post date:** [April 16, 2025, 9:27pm UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050/5 "2025-04-16T21:27:04Z")
Hi. The issue was also resolved [here](https://forums.unrealengine.com/t/how-can-i-allow-building-on-top-of-a-custom-cube-in-uefn/2448817/12), but in a different way. ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [October 6, 2025, 11:49am UTC](https://forums.unrealengine.com/t/i-cant-build-on-my-uefn-map-even-on-custom-mesh-or-fornite-props/2448050/6 "2025-10-06T11:49:29Z")
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