Practice Notes
Download Document - (Opens in a new window)
Approved for Publication 14/03/2005
PUBLIC BUILDINGS COMMITTEE
Practice Note 4
REVALUATION 2005
Contractor's Basis Valuations External Works Costs, Allowances and Land Value
1.0 INTRODUCTION
1.1 In contractor's basis valuations of Public Buildings subjects, external works and land are, respectively, costed separately from buildings.
1.2 Costing is carried out mainly by the use of unit cost rates.
2.0 SCOPE
2.1 This practice note gives guidance in regard to:
-
Unit cost rates for typical elements of external works and site finishes.
-
Unit cost rates for assumed overall external works and site finishes.
-
Approximate estimating for assumed overall external works and site finishes on a percentage of building cost basis.
-
Allowances.
-
Land value.
3.0 UNIT COST RATES AND APPROXIMATE ESTIMATES
3.1 Typical replacement unit cost rates for external works, etc., reflecting a mean level for Scotland and "normal" contract size, are noted in the Schedule of Unit Cost Rates introduced in 6.0 at the end of this report. Proposed "overall" external works cost rates and approximate estimates on the basis of a percentage of building cost are also noted therein.
3.2 It should be noted that unit cost rates are exclusive of professional fees and other charges.
4.0 ALLOWANCES
4.1 Age related physical obsolescence allowances for Public Buildings are shown overleaf under the headings of: -
-
Buildings
-
Plant
-
Civils
-
Tanks
These tables recommend maximum allowances to be used to reflect age-related obsolescence.
The use of notional age variations may provide flexibility on refurbished buildings, civils, plant or tanks and also on little used items of plant and machinery.
It should be noted that buildings originally constructed before 1950 are unlikely to be in their original state, having most likely been refurbished to some extent. In such cases, care should be taken in the application of the indicated ranges of allowances.
System built structures and buildings of temporary construction will normally comprise lightweight and inexpensive structural steel or timber frames with flat roof and very little or no brickwork to walls. Typically they will be substantially pre-fabricated and assembled on site and may have been originally intended as temporary accommodation. Pre 1975 structures of this type may be given a further allowance of up to 10% at the valuer's discretion, while those built from 1975 to 1985 may be given up to 7.5%.
4.2 Any deviation from the above, or the allowances recommended overleaf, for special category specific reasons, will be covered by individual Public Buildings Practice Notes. The general allowance profile permits flexibility of approach, particularly where modernisation or refurbishment has taken place or a property is in remarkably good condition for its age. Age alone does not justify allowance.
4.3 Further functional or technical obsolescence may require reflection based on site specific circumstances and valuer judgement.
4.4 Allowances
Subject to the terms of individual Public Buildings Category Practice Notes:
Table (A) should be applied for all buildings; Table (B) should be applied to all plant and machinery other than tanks; Table (C) should be applied to ancillary enclosures, supports and settings, roads and hardstandings etc.; Table (D) should be applied to tanks other than concrete tanks which should attract the allowances provided in Table (C).
|
Year |
Buildings |
Plant |
Civils |
Tanks |
|
|
% (A) |
% (B) |
% (C) |
%(D) |
|
2005 |
|
|
|
|
|
2004 |
0.50 |
|
|
|
|
2003 |
1.00 |
|
|
|
|
2002 |
1.50 |
|
|
|
|
2001 |
2.00 |
|
|
|
|
2000 |
2.50 |
|
|
|
|
1999 |
3.00 |
|
|
|
|
1998 |
3.50 |
|
|
|
|
1997 |
4.00 |
|
|
|
|
1996 |
4.50 |
|
|
|
|
1995 |
5.00 |
|
|
|
|
1994 |
6.00 |
2.00 |
0.50 |
1.00 |
|
1993 |
7.00 |
4.00 |
1.00 |
2.00 |
|
1992 |
8.00 |
6.00 |
1.50 |
3.00 |
|
1991 |
9.00 |
8.00 |
2.00 |
4.00 |
|
1990 |
10.00 |
10.00 |
2.50 |
5.00 |
|
1989 |
11.00 |
12.00 |
3.00 |
6.50 |
|
1988 |
12.00 |
14.00 |
3.50 |
8.00 |
|
1987 |
13.00 |
16.00 |
4.00 |
9.50 |
|
1986 |
14.00 |
18.00 |
4.50 |
11.00 |
|
1985 |
15.00 |
20.00 |
5.00 |
12.50 |
|
1984 |
16.00 |
22.50 |
5.50 |
14.00 |
|
1983 |
17.00 |
25.00 |
6.00 |
15.50 |
|
1982 |
18.00 |
27.50 |
6.50 |
17.00 |
|
1981 |
19.00 |
30.00 |
7.00 |
18.50 |
|
1980 |
20.00 |
32.50 |
7.50 |
20.00 |
|
1979 |
21.00 |
35.00 |
8.00 |
21.00 |
|
1978 |
22.00 |
37.50 |
8.50 |
22.00 |
|
1977 |
23.00 |
40.00 |
9.00 |
23.00 |
|
1976 |
24.00 |
42.50 |
9.50 |
24.00 |
|
1975 |
25.00 |
45.00 |
10.00 |
25.00 |
|
1974 |
26.00 |
45.50 |
10.50 |
26.00 |
|
1973 |
27.00 |
46.00 |
11.00 |
27.00 |
|
1972 |
28.00 |
46.50 |
11.50 |
28.00 |
|
1971 |
29.00 |
47.00 |
12.00 |
29.00 |
|
1970 |
30.00 |
47.50 |
12.50 |
30.00 |
|
1969 |
31.00 |
48.00 |
13.00 |
31.50 |
|
1968 |
32.00 |
48.50 |
13.50 |
33.00 |
|
1967 |
33.00 |
49.00 |
14.00 |
34.50 |
|
1966 |
34.00 |
49.50 |
14.50 |
36.00 |
|
1965 |
35.00 |
50.00 |
15.00 |
37.50 |
|
1964 |
36.00 |
|
15.00 |
40.00 |
|
1963 |
37.00 |
|
|
|
|
1962 |
38.00 |
|
|
|
|
1961 |
39.00 |
|
|
|
|
1960 |
40.00 |
|
|
|
|
1959 |
41.00 |
|
|
|
|
1958 |
42.00 |
|
|
|
|
1957 |
43.00 |
|
|
|
|
1956 |
44.00 |
|
|
|
|
1955 |
45.00 |
|
|
|
|
Pre 1955 |
45 to 50 |
|
|
|
5.0 LAND VALUE
5.1 Land should be costed using bona fide actual costs or in comparison with undeveloped land cost evidence in the particular area for similarly sized sites with similar use classes at the "tone" date. Ground rents may, perhaps, be available to assist and dispose of Stage 3 actions.
5.2 An element of land cost should not be incorporated into recommended unit cost rates for buildings or siteworks.
5.3 Consideration should be given to the appropriateness of any allowance to reflect the site being "encumbered" by obsolete buildings, structures, plant and machinery or some other factor. [the so called "Ebdon Allowance" - for background see Imperial College of Science and Technology v Ebdon (VO) and Westminster City Council 1984 LT RA 84 page 213] The quantum of any such allowance may be influenced by adjustments made between Stage 1 and Stage 2 of the particular valuation but in all cases this is a matter of valuer judgement.
5.4 Consideration should also be given to possible surplus land within the site that may, for instance, be reserved for future development. This may attract a lower level of value but "Ebdon Allowance" may not be appropriate. This is, again, a matter of valuer judgement.
5.5 The result of application of any such allowance, where considered appropriate, is the "tone" land value to be added at Stage 3 of the contractor's basis valuation. Relevant ground rent information, if available, should be incorporated at Stage 4 as annual value with no Stage 3 necessary.
6.0 SCHEDULE OF UNIT COST RATES
6.1 The schedule lists typical items of siteworks encountered at Public Buildings subjects and recommends unit cost rates that reflect the Scottish "mean" level for a notional contract size of £2,000,000. These rates require to be adjusted to reflect contract size and any addition for professional fees when arriving at Estimated Replacement Cost. (E.R.C.).
(These adjustments are detailed in Basic Principles Practice Note 2).
6.2 Schedule of Unit Cost Rates
(TYPICAL EXTERNAL WORKS COSTS AT PUBLIC BUILDINGS)
The schedule lists typical items of external works encountered at Public Buildings Subjects and recommends unit cost rates which reflect a Scottish "mean" level (i.e. 0.94 of the BCIS TPI UK Mean of 1.00) for a notional contract size of £2,000,000. These rates require to be adjusted to reflect contract size and any addition for professional fees when arriving at Estimated Replacement Cost. (E.R.C.).
(See Basic Principles Practice Note 2 ).
Schedule of Unit Cost Rates - Contents
|
|
Page |
|
Page |
|
|
|
|
|
|
Surfaced Areas |
6 |
Security Barriers |
9 |
|
Hardstandings |
6 |
Manual and Automatic |
9 |
|
Plain in situ concrete |
6 |
Bollards/Guard rails |
9 |
|
Reinforced in situ concrete |
6 |
Fender |
9 |
|
Tarmacadam |
6 |
Bollards set in concrete foundations |
9 |
|
Dense bitumen macadam |
6 |
Boundary Walls/Fences |
10 |
|
Asphalt |
6 |
Walls |
10 |
|
Gravel/hoggin roads/pavements |
6 |
Concrete post and wire fencing |
10 |
|
Slab/brick/block/sett/cobble pavings |
6 |
Timber post and wire fencing |
11 |
|
Concrete paving flags |
7 |
Chain Link fencing/gates, posts, etc. |
11 |
|
Granite setts |
7 |
Chain link fencing for tennis courts |
11 |
|
Grass concrete paving |
7 |
Timber Fencing |
12 |
|
Safety Surfaces |
7 |
Cleft chestnut pale |
12 |
|
Bark particle type |
7 |
Closeboarded |
12 |
|
Wicksteed tumbleguard type |
7 |
Interwoven panels |
12 |
|
Landscaped Areas |
7 |
Post and rail |
12 |
|
Playing Surfaces |
7 |
Field gate |
12 |
|
Kerbs, Edgings and Channels |
8 |
Palisade |
12 |
|
Precast concrete edgings |
8 |
Precast concrete slab fencing |
13 |
|
Precast concrete kerbs |
8 |
Mild steel unclimbable fencing and |
13 |
|
Precast concrete drainage |
8 |
Gates |
|
|
channels |
|
Tubular steel railings and gates |
13 |
|
Inspection unit, etc. |
8 |
Galvanised steel security fencing |
13 & 14 |
|
Footpaths |
8 |
and gates |
|
|
Gravel |
8 |
Security Fencing |
13 |
|
Concrete paving slabs |
8 |
Electronic Security Gates |
14 |
|
Bitumen macadam paving |
8 |
Single Leaf Sliding Cantilevered |
14 |
|
Site Furniture |
9 |
Overall Siteworks |
14 |
|
Lighting |
9 |
Approximate Estimates |
15 |
|
Lighting on columns set in |
9 |
|
|
|
concrete foundations |
|
|
|
|
Security/Settings |
9 |
|
|
Surfaced Areas
|
|
ERC Rate |
Unit |
|
Plain in situ concrete |
|
|
|
|
|
|
|
21N/mm2 paving, 150 thick hardcore, expansion joints |
|
|
|
|
|
|
|
75 mm thick |
£17.85 |
m² |
|
100 mm thick |
£26.30 |
m² |
|
150 mm thick |
£31.00 |
m² |
|
200 mm thick |
£34.75 |
m² |
|
250 mm thick |
£39.50 |
m² |
|
|
|
|
|
Reinforced in situ concrete |
|
|
|
|
|
|
|
21N/mm2 paving, 150 thick hardcore, expansion joints |
|
|
|
|
|
|
|
100mm thick |
£29.15 |
m² |
|
150mm thick |
£33.85 |
m² |
|
200mm thick |
£37.60 |
m² |
|
250mm thick |
£42.30 |
m² |
|
|
|
|
|
Tarmacadam Wearing Course Base Course Road Base Sub Base |
|
|
|
|
|
|
|
20 mm 45 mm 50 mm 250 mm |
£22.55 |
m² |
|
30 mm 20 mm 50 mm 250 mm |
£31.00 |
m² |
|
|
|
|
|
Dense bitumen macadam |
|
|
|
|
|
|
|
50 mm 30 mm 100 mm 250 mm |
£34.75 |
m² |
|
50 mm 30 mm 100 mm 300 mm |
£36.65 |
m² |
|
|
|
|
|
Asphalt |
|
|
|
|
|
|
|
60 mm 40 mm 100 mm 300mm |
£40.40 |
m² |
|
|
|
|
|
Gravel/hoggin roads/pavements (excludes drainage) |
|
|
|
|
|
|
|
Hardcore 150 mm thickness |
£9.40 |
m² |
|
Gravel 50 mm thickness |
£11.25 |
m² |
|
Gravel 63 mm thickness |
£12.20 |
m² |
|
Granular fill 100 mm thickness |
£7.05 |
m² |
|
|
|
|
|
|
ERC Rate |
Unit |
|
Slab/brick/block/sett/cobble pavings |
|
|
|
|
|
|
|
Artificial stone 450 x 600 x 50 mm |
£29.10 |
m² |
|
600 x 600 x 50 mm |
£27.25 |
m² |
|
|
|
|
|
Brick paviors 215 x103 x 65 mm |
|
|
|
laid flat |
£42.30 |
m² |
|
laid on edge |
£56.40 |
m² |
|
laid flat to herringbone pattern |
£45.10 |
m² |
|
laid on edge to herringbone pattern |
£60.15 |
m² |
|
|
|
|
|
Concrete paviors 200 x 100 x 80 mm (grey) |
|
|
|
laid flat |
£30.05 |
m² |
|
laid flat to herringbone pattern |
£31.00 |
m² |
|
(coloured) laid flat |
£32.90 |
m² |
|
laid flat to herringbone pattern |
£33.80 |
m² |
|
|
|
|
|
Cobble paving 50 - 75 mm |
£77.05 |
m² |
|
laid to pattern |
£92.10 |
m² |
|
|
|
|
|
Concrete paving flags |
|
|
|
|
|
|
|
300 x 300 x 60 mm |
£29.50 |
m² |
|
Grey |
£30.50 |
m² |
|
Coloured |
|
|
|
|
|
|
|
450 x 600 x 50 mm |
|
|
|
Grey |
£23.00 |
m² |
|
Coloured |
£24.00 |
m² |
|
|
|
|
|
600 x 600 x 50 mm |
|
|
|
Grey |
£21.60 |
m² |
|
Coloured |
£22.60 |
m² |
|
|
|
|
|
750 x 600 x 50 mm |
|
|
|
Grey |
£21.10 |
m² |
|
Coloured |
£22.10 |
m² |
|
|
|
|
|
Granite setts |
|
|
|
|
|
|
|
200 x 100 x 100 mm |
£69.55 |
m² |
|
laid to pattern |
£74.25 |
m² |
|
|
|
|
|
Grass concrete paving with topsoil and seeded |
|
|
|
|
|
|
|
75 mm thick |
£29.10 |
m² |
|
100 mm thick |
£31.95 |
m² |
|
150 mm thick |
£35.70 |
m² |
|
|
ERC Rate |
Unit |
|
Safety Surfaces |
|
|
|
|
|
|
|
Bark particle type |
£20.00 |
m² |
|
Wicksteed tumbleguard type |
£70.00 |
m² |
|
|
|
|
|
Landscaped Areas |
|
|
|
|
|
|
|
Excavate over site 250 mm deep to remove topsoil, deposit in temporary spoilheaps, remove from spoilheaps and spread on site, cultivate topsoil, apply weedkiller and sow grass seed at 175 kg per hectare, harrow, lightly roll and carry out initial cut, etc. |
£3.90 |
m² |
|
|
|
|
|
Playing Surfaces |
|
|
|
|
|
|
|
Ash |
|
|
|
Surfacing including foundations |
£9.40 |
m² |
|
|
|
|
|
Shale |
|
|
|
Surface including drainage and foundation |
|
|
|
Small areas less than 6,000 m² |
£12.70 |
m² |
|
Areas greater than 6,000m² |
£11.75 |
m² |
|
|
|
|
|
Tarmacadam |
|
|
|
Porous tarmacadam including drainage and foundation |
|
|
|
Small areas less than 6,000 m² |
£28.20 |
m² |
|
Areas greater than 6,000 m² |
£18.80 |
m² |
|
|
|
|
|
Turf |
|
|
|
Artificial all-weather pitch including drainage and stone foundations |
£47.00 |
m² |
|
|
|
|
|
Bowling Green |
|
|
|
38.4 x 38.4 m, 6 rink including drainage and foundations, ditch, |
£45.00 |
m² |
|
bank and path |
|
|
|
|
|
|
|
Cricket |
|
|
|
Synthetic wicket, 30.00 x 2.60 m including drainage |
|
|
|
Concrete foundations per wicket |
£6,580.00 |
each |
|
Stone foundations per wicket |
£5,640.00 |
each |
|
|
|
|
|
5-a-side Football Pitch |
|
|
|
36.00 x 18.50 m, including perimeter wall and mesh fence including |
|
|
|
drainage |
|
|
|
Asphalt/macadam surface |
£32,000.00 |
per pitch |
|
Synthetic surface |
£38,500.00 |
per pitch |
|
|
ERC Rate |
Unit |
|
Kerbs, Edgings and Channels |
|
|
|
|
|
|
|
Precast Concrete Edgings |
|
|
|
Bedded, jointed and pointed in cement mortar, haunching up one |
|
|
|
side with in situ concrete on concrete foundation including |
|
|
|
excavation |
|
|
|
50 mm x 150mm to 250mm edgings - straight or curved |
£9.40 |
m run |
|
|
|
|
|
Precast concrete kerbs/channels |
|
|
|
Formed as above: |
|
|
|
125 x 250 mm Kerbs - straight |
£15.95 |
m run |
|
125 x 250 mm Kerbs - curved |
£17.85 |
m run |
|
125 x 300 mm Kerbs - straight |
£18.80 |
m run |
|
125 x 300 mm Kerbs - curved |
£24.40 |
m run |
|
255 x 125 mm Channels - straight |
£15.00 |
m run |
|
255 x 125 mm Channels - curved |
£18.80 |
m run |
|
|
|
|
|
Precast concrete “Safticurb”drainage channels |
|
|
|
|
|
|
|
250 mm x 250 mm |
£30.05 |
m run |
|
|
|
|
|
Inspection unit |
|
|
|
|
|
|
|
With cast iron lid 248 x 248 x 914 mm |
£61.10 |
each |
|
|
|
|
|
Silt box top |
|
|
|
|
|
|
|
With concrete frame and cast iron lid, 457 x 610 mm, set over gully |
£263.20 |
each |
|
each - |
|
|
|
|
|
|
|
Footpaths |
|
|
|
|
|
|
|
Gravel |
|
|
|
50 mm thick per metre run at a width of: |
|
|
|
900 mm |
£11.60 |
m run |
|
1,000 mm |
£11.60 |
m run |
|
1,200 mm |
£12.60 |
m run |
|
1,500 mm |
£13.60 |
m run |
|
2,000 mm |
£14.50 |
m run |
|
|
ERC Rate |
Unit |
|
Concrete paving slabs |
|
|
|
|
|
|
|
50 mm thick including sub-base per metre run at a width of: |
|
|
|
900 mm Grey |
£20.55 |
m run |
|
Coloured |
£21.60 |
m run |
|
1,000 mm Grey |
£25.00 |
m run |
|
Coloured |
£26.00 |
m run |
|
1,200 mm Grey |
£26.15 |
m run |
|
Coloured |
£27.15 |
m run |
|
1,500 mm Grey |
£33.00 |
m run |
|
Coloured |
£33.45 |
m run |
|
2,000 mm Grey |
£46.70 |
m run |
|
Coloured |
£47.75 |
m run |
|
|
|
|
|
Bitumen macadam paving |
|
|
|
|
|
|
|
65 mm thick including sub-base and concrete edgings per metre |
|
|
|
run at a width of: |
|
|
|
900 mm |
£39.00 |
m run |
|
1,000 mm |
£42.00 |
m run |
|
1,200 mm |
£47.00 |
m run |
|
1,500 mm |
£51.50 |
m run |
|
2,000 mm |
£73.00 |
m run |
|
|
|
|
|
Site Furniture |
|
|
|
|
|
|
|
Lighting |
|
|
|
Lighting on columns set in concrete foundations |
|
|
|
4-6 m columns with up to 70 W lamp including electrical supply and |
£645.00 |
each |
|
connections |
|
|
|
10-12 m columns with up to 250 W lamp including electrical supply and connections |
£875.00 |
each |
|
10-12 m columns with sodium lamp including electrical supply and connections |
£1,000.00 |
each |
|
|
|
|
|
Security/Settings |
|
|
|
|
|
|
|
Security Barriers |
|
|
|
Barriers for a 4 m clear opening with steel supports bolted to a |
|
|
|
concrete foundation (average rates) |
|
|
|
Manually operated pole barrier with counter balance on tubular steel |
£990.00 |
each |
|
supports |
|
|
|
Electrically operated pole barrier switch operated |
£2,500.00 |
each |
|
Electrically operated pole barrier with pedestal mounted card reader |
£3,500.00 |
each |
|
and auto close induction loop |
|
|
|
Two electrically operated barriers with pedestal mounted card |
£7,600.00 |
each |
|
readers and auto close induction loop for entrance and exit with |
|
|
|
gatehouse over-ride switch |
|
|
|
|
ERC Rate |
Unit |
|
Road blockers |
|
|
|
Hydraulically operated road blocker 3 m wide with 350 mm raised |
£11,600.00 |
each |
|
height. |
|
|
|
Remote push button control, two induction loops and red over green |
|
|
|
traffic light |
|
|
|
Surface mounted hydraulically operated road blocker 3 m wide with |
£7,800.00 |
each |
|
300 mm raised height. Remote push button control, two induction |
|
|
|
loops, red over green traffic light and approach ramps |
|
|
|
Hydraulic rising bollard. Remote push button control, safety/auto- |
£6,400.00 |
each |
|
raise loop to work in both directions, two red over green traffic lights |
|
|
|
|
|
|
|
Bollards/Guard rails |
|
|
|
|
|
|
|
Fender |
|
|
|
In galvanised steel sheet, 600mm high with corrugations, bolted to |
£35.90 |
m run |
|
tanalised softwood posts set in concrete foundation |
|
|
|
|
|
|
|
Bollards set in concrete foundations |
|
|
|
|
|
|
|
Pre-cast concrete 200-300 mm diameter, 750 mm high |
£94.00 |
each |
|
Hollow section steel with cast capping 245 mm diameter |
£155.00 |
each |
|
|
|
|
|
Boundary Walls/Fences |
|
|
|
|
|
|
|
Walls |
|
|
|
|
|
|
|
common bricks in mortar |
£30.00 |
m² |
|
medium grade facing bricks in mortar |
£43.00 |
m² |
|
Class A engineering bricks in mortar |
£45.00 |
m² |
|
|
|
|
|
1 brick (215 mm) thick solid wall of:- |
|
|
|
common bricks in mortar |
£55.00 |
m² |
|
facing bricks in cement mortar |
£81.50 |
m² |
|
Class A engineering bricks in mortar |
£82.50 |
m² |
|
|
ERC Rate |
Unit |
|
Concrete post and wire fencing |
|
|
|
|
|
|
|
Three line, posts at 2.75 m centres |
|
|
|
900 mm high |
£8.00 |
m run |
|
Extra for end concrete straining post, one strut |
£48.50 |
each |
|
Angle concrete straining post, two struts |
£65.50 |
each |
|
1.07 m high |
£10.25 |
m run |
|
Extra for end concrete straining post, one strut |
£56.75 |
each |
|
Angle concrete straining post, two struts |
£73.25 |
each |
|
1.20 m high |
£11.75 |
m run |
|
Extra for end concrete straining post, one strut |
£60.00 |
each |
|
Angle concrete straining post, two struts |
£81.75 |
each |
|
1.40 m high |
£13.00 |
m run |
|
Extra for: End concrete straining post, one strut |
£64.25 |
each |
|
Angle concrete straining post, two struts |
£87.75 |
each |
|
|
|
|
|
Timber post and wire fencing |
|
|
|
|
|
|
|
Posts at 2.75 m centres |
|
|
|
900 mm high |
£6.50 |
m run |
|
1.2 m high |
£11.25 |
m run |
|
1.4 m high |
£12.25 |
m run |
|
|
|
|
|
Chain Link Fencing |
|
|
|
|
|
|
|
Galvanised mild steel mesh; galvanised mild steel or concrete posts |
|
|
|
at 3.0 m centres (for plastic coated mesh add approx 15% to meter |
|
|
|
run prices) |
|
|
|
900mm high |
£10.75 |
m run |
|
Extra for end straining post, one strut |
£49.25 |
each |
|
Angle straining post, two struts |
£66.75 |
each |
|
1.2 m high |
£12.50 |
m run |
|
Extra for end straining post, one strut |
£60.00 |
each |
|
Angle straining post, two struts |
£79.25 |
each |
|
1.5 m high |
£14.50 |
m run |
|
Extra for end straining post, one strut |
£70.00 |
each |
|
Angle straining post, two struts |
£94.00 |
each |
|
1.8 m high |
£16.00 |
m run |
|
Extra for: End straining post, one strut |
£79.25 |
each |
|
Angle straining post, two struts |
£108.00 |
each |
|
2.4 m high |
£22.50 |
m run |
|
Extra for end straining post, one strut |
£119.75 |
each |
|
Angle straining post, two struts |
£163.50 |
each |
|
|
ERC Rate |
Unit |
|
Gates and gate posts; mild steel unclimbable (to match mild |
|
|
|
steel unclimbable fencing) with flat section framing etc; complete |
|
|
|
with locking bar, handles etc; two 102mm x 102mm hollow section |
|
|
|
gate posts |
|
|
|
2.44 m wide x 1.67 m high |
£950.00 |
each |
|
2.44 m wide x 2.44 m high |
£1,115.00 |
each |
|
4.88 m wide x 1.67 m high |
£1,470.00 |
each |
|
4.88 m wide x 2.13 m high |
£1,880.00 |
each |
|
|
|
|
|
Tubular steel railings and gates |
|
|
|
|
|
|
|
Railings; mild steel; in bays 2,000 mm long; 20 mm diameter |
|
|
|
balusters at 130 mm centres welded to flat rail top and bottom; |
|
|
|
bolted to 51mm x 51 mm hollow square section posts at 2.0 m |
|
|
|
centres |
|
|
|
900 mm high |
£63.00 |
m run |
|
1.2 m high |
£66.00 |
m run |
|
1.5 m high |
£70.50 |
m run |
|
|
|
|
|
Gates and gate posts; (to match railings) mild steel with flat |
|
|
|
section framing, braces etc.; complete with locking bar, handles |
|
|
|
etc.; two 102 mm x 102 mm hollow section gate posts |
|
|
|
0.9 m wide x 0.9 m high |
£137.00 |
each |
|
0.9 m wide x 1.2 m high |
£145.00 |
each |
|
0.9 m wide x 1.5 m high |
£155.00 |
each |
|
|
|
|
|
Galvanised steel security fencing and gates |
|
|
|
|
|
|
|
Security Fencing - Corrugated steel palisade security with pales at |
|
|
|
152 mm centres; rolled steel angle posts at 2.75 m centres set in |
|
|
|
concrete; all hot-dip galvanised. |
|
|
|
1.80m high |
£53.00 |
m run |
|
2.40m high |
£60.00 |
m run |
|
2.70m high |
£66.00 |
m run |
|
3.00m high |
£70.50 |
m run |
|
|
|
|
|
Security Gates - Gates and gate posts, corrugated steel palisade |
|
|
|
security (to match fencing) hung on rolled steel joist posts set in. |
|
|
|
concrete; complete with bolts and locking bar; all hot-dip |
|
|
|
galvanised |
|
|
|
Pair 4.00 m wide x 2.40 m high |
£2,100.00 |
each |
|
Pair 5.00 m wide x 3.00 m high |
£3,600.00 |
each |
|
|
|
|
|
Electronic Security Gates - Gates and gate posts; corrugated |
|
|
|
steel palisade security (to match fencing) hung on rolled steel joist |
|
|
|
posts set in concrete; complete with bolts and locking bar; all hot- |
|
|
|
dip galvanised gates power operated; double leaf swing, remote |
|
|
|
push button automation |
|
|
|
Pair 4.00 m wide x 2.40 m high |
£6,600.00 |
|
|
|
ERC Rate |
Unit |
|
Single Leaf Sliding Cantilevered - Gate and gate posts; |
|
|
|
corrugated steel palisade security (to match fencing) hung on rolled |
|
|
|
steel joist posts set in concrete; complete with bolts and locking |
|
|
|
bar; all hot-dip galvanised. Gates power operated; single leaf |
|
|
|
cantilever with sliding action; posts and running gear, remote push |
|
|
|
button automation |
|
|
|
7.00 m wide x 3.00 m high |
£8,202.00 |
each |
Overall External Works
These approximate overall rates may be useful where insufficient survey detail is available. They attempt to reflect the average cost of preparing, establishing and finishing the site of a public building. Higher quality finishes or features may justify higher rates and up to 20% may be added for this. The % ages quoted in the table below relate to the surface area of the site excluding the “footprint” of any building.
The ERC Rate is to be applied to the surface area of the site excluding the “footprint” of any building.
For drainage to hardstanding areas add £10 per m2 in respect of these areas only.
|
Type |
ERC Rate |
Unit |
|
Virtually totally landscaped with footpath, walls or fencing |
£12 |
m² |
|
90% landscaped with footpath, hardstandings, walls or fencing |
£15 |
m² |
|
80% landscaped with footpath, hardstandings, walls or fencing |
£20 |
m² |
|
70% landscaped with footpath, hardstandings, walls or fencing |
£25 |
m² |
|
60% landscaped with footpath, hardstandings, walls or fencing |
£30 |
m² |
|
50% landscaped with footpath, hardstandings, walls or fencing |
£35 |
m² |
|
40% landscaped with footpath, hardstandings, walls or fencing |
£40 |
m² |
|
30% landscaped with footpath, hardstandings, walls or fencing |
£45 |
m² |
|
20% landscaped with footpath, hardstandings, walls or fencing |
£50 |
m² |
|
10% landscaped with footpath, hardstandings, walls or fencing |
£55 |
m² |
|
Totally Surfaced with walls or fencing |
£60 |
m² |
Approximate Estimates
The following approximate percentage additions to building cost should be used only where actual siteworks or external works cannot be directly costed or identified.
|
Extent of Siteworks |
Percentage to be Added |
Comments |
|
Minimal |
Single Storey 2.5% to 10% Two Storey +2.5% to 5% |
Virtually on “solum” with street access only or minimal surroundings |
|
Normal |
Single Storey 15% Two Storey +7.5% to10% |
Reasonable site, access/parking, landscaping, secure boundary. |
|
Extensive |
Single/TwoStorey +20% to 50% |
E.g. schools, fire stations, etc. extensive site, infrastructure, parking , areas of hardstanding, street furniture, secure boundary. |
Download Acrobat Reader - (Opens in a new window)
