Named Ängelholm civil-defence HC built as a rare buried domed concrete facility because suitable rock was unavailable. The source reports an 18 m span, 9 m height, 2 m shell thickness, 800 m² / 8,611 ft² over two floors, two surface entrances linked by a blast tunnel, one vertical escape shaft, 40 rooms and three-week standby endurance. The monetary record includes a pre-build estimate, later operating cost and a 2016 sale price including land.

area_m2: value: 800 m² / 8,611 ft² | scope: focal facility floor area | note: Total across two floors.; value: 7395 m² / 79,599 ft² | scope: 2016 sale parcel | note: Land parcel, not facility floor area. | height_m: value: 9 | unit: m | scope: domed shell | note: Reported dome height. | span_m: value: 18 | unit: m | scope: domed shell | note: Reported clear/overall dome span; exact reference line is not stated. | portals: value: 2 | unit: surface entrances | scope: focal facility | note: Main and reserve entrances linked by a blast tunnel. | shafts: value: 1 | unit: vertical escape shaft | scope: focal facility | note: Small shaft to the crown; dimensions not reported. | inner_structure: value: two-level ring-plan occupied structure inside a buried reinforced-concrete dome | scope: focal facility | note: Lower level described as inner and outer rings. | levels: value: 2 | unit: floors | scope: focal facility | note: Directly reported. | other: value: 2 | unit: m | scope: domed shell thickness | note: Reported shell/arch thickness.; value: 40 | unit: rooms | scope: focal facility | note: Includes offices, telephone exchange, day room and support rooms.; value: 101 | unit: beds | scope: inventory | note: Distinct from the article's approximate 60 persons per dormitory statement.

amount: SEK 2,960,000 | year: 1965 | basis: pre-construction estimate | scope: Complete HC Hugo facility; no actual final construction cost is reported.; amount: SEK 105,000 per year | year: 2015 | basis: reported operating cost | scope: Temporary heating/operation after PCB remediation disabled heat, ventilation and standby systems; associated consumption 55,000 kWh.; amount: SEK 3,750,000 | year: 2016 | basis: sale price | scope: Facility plus 7,395 m² / 79,599 ft² land parcel; market transaction, not construction cost.

Standby power sized for approximately three weeks; Municipal water/sewer in peace and own well in wartime; Separate dormitories and sanitation; Small kitchen and 30-person dining room; Telephone exchange, offices, day room and central operations room; Blast tunnel linking two entrances and a separate vertical escape

High-mass 18 m by 9 m, 2 m thick domed shell; Unknown foundation and below-grade excavation; 800 m² / 8,611 ft² two-level fit-out; Two entrances, blast tunnel and escape shaft; Three-week standby power, well and protected services; Remediation or system reinstatement if existing-condition scope is used

One named HC facility. Comparisons with the similar Hugo/August/Agata dome class are contextual and not additional unit quantities.

Revised upward after source-specific review.

Dome shape, spring line and external/internal reference dimensions; Foundation, floor-slab and wall geometry; Concrete and reinforcement quantities; Blast-tunnel length and section; Escape-shaft dimensions; Ventilation/CBRN performance and generator capacity; Actual final construction cost; Current system-reinstatement condition

Source geology narrative explains why a concrete dome was used; classifying it as a rock cavern would be wrong.; The current model under-represents explicit access count with one generic portal package.; The 2016 sale price includes land and reflects market/condition, not replacement value.; PCB remediation left heating, ventilation and standby power inoperative, so existing-condition photographs are not a functioning-system baseline.