GURU TUTORIALS
Here are a few tutorials that are good for the novice builder.
Tutorial: How to upload Lots by SimGuruWeb
Tutorial: Convert Lot to Residential by SimGuruWeb
Tutorial: Bring Media Into Story Tool by SimGuruWeb
ROOF TUTORIALS
How to create a basic roof with different slope angles by feldynn.
Individual Roofslope tutorial by Mch36504.
Roof Height Adjustment in Sims 3 by Qbuilderz.
stacked pagodaroofs - how to by Amoebius.
Adding Dormers to a Roof A Tutorial by ricslady99.
Slanted floor tile roof tutorial by jisgr8.
BASEMENT TUTORIALS
How To Build a Basement by Catfish2933 on YouTube.
Aquarium Pool - How To by Amoebius.
TOMB TUTORIALS
How to Build a Tomb: Cause & Effects by SunsetValley01.
Tomb Making Tutorial: by SunsetValley01
TOMBS:How To Use The Processor's "AND!" by bunbunnyny
Tomb Building: The Processor by TS3 Wiki at TSR
Tomb Overview by TS3 Wiki at TSR
Tomb Building Basic by TS3 Wiki at TSR
Tomb Building Advanced by TS3 Wiki at TSR
Tomb Building: Triggers and Activated Behaviours by TS3 Wiki at TSR
Tomb Creation 101 by TS3 Wiki at TSR
The Sims 3: World Adventures Building Tombs extensive article on GameSpy
GARAGE TUTORIALS
Building Garages on Foundation Homes by WhyYouLittle05.
Episode 1: Connecting Garages to Foundations by Flabaliki.
STAIRS
Split Level Stair Tutorial by alanmc12.
Creating L-shaped stairs in The Sims 3 by BlackGarden.
Creating U-Shaped Stairs in The Sims 3 by mensure.
FENCES
Create Realistic, Stylish Fences by Jasonmazda2
USING FOUNDATIONS AS EXTERIOR WALLS
Using Foundations as Exterior Walls by exdemon1120.