Additions

Home additions and second storeys

More space without moving — ground-floor additions, second storeys and structural reworking, permitted properly.

Additions & second storeys

How it compares to the other two.

Plans

Your plans start with your lot.

Every residential project is designed to your lot — bring us yours. Whether you build out or up is a structural and a zoning question at the same time, and we answer both before anything is drawn.

Open dining & living
Open dining & living
Living room & stairs
Living room & stairs
Open-plan kitchen, dining & loft
Open-plan kitchen, dining & loft

Fortune Design & Permits projects across San Diego County.

Rules that apply.

Limits vary by jurisdiction. These are the levers that decide what fits on your lot — we confirm every one of them against your city before design starts.

  • Height limitSet by zone
  • SetbacksSet by zone
All the rules that apply, with citations
  • Structural reviewRequired for second storeys

These are the reviews and limits that typically govern this work. Most are set by your jurisdiction and by the building, fire and accessibility codes — they are requirements, not starting points. We confirm exactly which ones apply to your address and scope before design starts. See regulations by city. Statutes reviewed 4 August 2026.

Is this you? When this is the right call
A design rendering of a two-storey rear addition, exterior elevation
You need more room but want to stay in the neighbourhood.
You are weighing building up against building out.
You want the structural and permit questions answered together.

Feasibility → design → permit → build — the same four steps as every project we run. See how the process works.

Start with a free consultation.

Under an hour, no pressure — we talk through what your lot allows and give you a ballpark for your property. No charge, and no obligation to go further.

Free consultationRegulations by city