Home Annexes in Jeddah: Types, Cost and Execution
An annex is the fastest way to add a room, majlis or office without buying new property. In Jeddah especially, unused rooftop space is a real opportunity to add usable area at reasonable cost and in a short time.
Annex types
- Rooftop annexes: the most requested, using space you already own.
- Garden annexes: ideal as a standalone majlis, home office or guest room.
- Luxury annexes: high-grade finishing, acoustic insulation and central air conditioning.
- Annexes with a bathroom: need plumbing and add 15% – 25% to cost.
- Annexes with a kitchen: suited to independent living or rental.
- Prefab annexes: built off-site and installed within days.
Cost by area
Indicative figures covering structure and basic finishing, varying with finish level and site access.
| Area | Without bathroom | With bathroom |
|---|---|---|
| 20 m² (4×5) | SAR 15,000 – 24,000 | SAR 22,000 – 34,000 |
| 35 m² (5×7) | SAR 25,000 – 40,000 | SAR 30,000 – 48,000 |
| 48 m² (6×8) | SAR 34,000 – 55,000 | SAR 42,000 – 68,000 |
| 60 m² (6×10) | SAR 42,000 – 70,000 | SAR 55,000 – 85,000 |
Why sandwich panels suit annexes
- Light weight that does not strain the existing structure.
- Build time of 2 to 4 weeks instead of months.
- Built-in thermal insulation that noticeably cuts cooling bills.
- Can be dismantled and relocated later.
- 40% – 50% lower cost than conventional construction.
Execution stages
- Inspection and assessment of the roof or ground.
- Design and approval of internal layout, doors and windows.
- Base preparation or roof levelling.
- Structure and panel installation.
- Electrical and plumbing first fix.
- Interior finishing, air conditioning and handover.
Five points before you start
- Confirm municipal requirements for rooftop construction and permitted ratios.
- Check the roof's condition and waterproofing before building over it.
- Plan electrical and AC routes before closing walls.
- Do not neglect ventilation and natural light in the design.
- Ask for an itemised quote with a defined build duration.
Areas we serve
AVORA is headquartered in Jeddah and delivers projects across Makkah, Taif, Madinah, Riyadh, Dammam and all regions of the Kingdom.
For projects outside Jeddah we arrange a site visit before issuing the quote, and transport costs are stated transparently within it.
Note: prices in this article are indicative and vary with specification, quantity and site conditions. For an exact figure for your project, request a free quote.
Frequently asked questions
What does a 40 m² annex cost in Jeddah?+
Between SAR 28,000 and 45,000 without a bathroom, rising to around SAR 55,000 with a bathroom and good finishing.
Does a rooftop annex need a permit?+
Yes — rooftop construction is subject to municipal requirements and approved build ratios; check before starting to avoid violations.
How long does an annex take?+
Two to four weeks for sandwich panel annexes, depending on area and finish level.
