The former Leverstock Green boss took temporary charge in October following the departure of Dean Barker.
Chairman Ian Barry told http://www.northwoodfc.com: “We are very happy to appoint Scott as our new manager. He has shown the required commitment and desire since taking up the reins a few weeks ago.
"I do appreciate that it may have taken slightly longer than usual to make this decision, but I needed to see Scott work and demonstrate all the aspects of what I want to see in a manager, which he has done.
"He has steadied the ship and already started to make improvements to the squad. We wish him well in his new position and welcome him to the Northwood `family`”.
Meanwhile, Woods have lost the services of defender Sam Tring, who was on loan from Evo-Stik Southern League Premier Division South side Kings Langley.
Tring was re-called by his parent club and sold to Bostik Premier outfit Wingate & Finchley for an undisclosed fee.