Stride Treglown is a sustainability focused architecture firm that has implemented numerous green initiatives in its offices and projects. Some of these initiatives include installing photovoltaic solar panels, achieving high BREEAM ratings, using sustainable materials like straw bales and hemp, designing passively heated and daylit buildings, encouraging alternative transportation through providing electric vehicles, and engaging in activities to promote wildlife during their annual Green Week.

1. STRIDE TREGLOWN AND SUSTAINABILITY ATO Z

2. ALLOTMENTS

3. ALLOTMENTS
Built by staff
Opened in 2012 by the Soil
Association
One of our One Planet Living
initiatives

4. BIM

5. BIM
This year we have signed up to environmental modelling
software Sefaira

6. CARBON NEUTRAL

7. CARBON NEUTRAL
Our Cardiff Office became officially Carbon Neutral after
we added 100m2 PV array in 2011.
It was the Highest BREEAM Outstanding rating in the
country when it was designed.

8. DAYLIGHT

9. DAYLIGHT
We have designed many
atrium buildings and some of
the best daylit offices in the
south-west.

10. EUROPEAN GREEN CAPITAL

11. EUROPEAN GREEN CAPITAL
Our Filwood Green Business Park is one of the
Green Capital’s flagship schemes this year.
Due to our active promotion of sustainability in the
City we were invited to speak at the official launch
of Bristol European Green Capital.
This month, in addition to Green Week, we are
exploring Sustainable Landscape, next month is
Sustainable Leisure.

12. FABRIC FIRST

13. FABRIC FIRST
Our BREEAM Outstanding Environment and
Sustainability Institute in Tremough has very low U
values:
0.05 floor/ 0.12 walls/ 0.07 roof/ 0.9 windows
(it also sent zero waste to landfill, and has a 35,000
litre rainwater harvesting tank)
In 2012 we also improved the insulation at
Promenade House and replaced all the windows in
the drawing studios

14. gREEN
WEEKS

15. gREEN
WEEKS
This is our 5th Green Week and last year we set
up Business Green Week with Low Carbon
South West and Business West.
This year 47 local companies have signed up,
including the BBC, UWE and River Cottage

16. HONEY

17. HONEY
In 2011 our first beehive was installed at Promenade House.
Last year our three hives produced about 100 jars of honey.
We have just submitted a planning application for a new apiary
for Bristol Beekeeper, which is being exhibited in an RIBA ‘Green
Manifesto’ exhibition tonight.

18. HONEY

19. INNOVATION

20. INNOVATION
Our Letchworth housing is constructed using hemp and lime.
In 2010 we produced a drug-detox centre at Boscence Farm in
Cornwall, based on the design of historic settlements in the area.
This also incorporates hemp insulation and uses sustainable
materials such as timber frame, larch cladding, green roofs and
locally reclaimed stone walling.

21. JOINTLY OWNED

22. JOINTLY OWNED
Earlier this year we followed the John Lewis model and became
Employee owned.

23. KILOWATTS

24. KILOWATTS
Our Cardiff Office PV array is 15.7 kW.
With the Feed-in Tariff they earn us
over £5k a year as well as providing us
with free power
Our intranet Sunny Portal lets staff
monitor live solar information.

25. LOW IMPACT WEDNESDAY

26. LOW IMPACT WEDNESDAY
This Wednesday we have talks by 4 wildlife speakers, a
Shwopping event, a challenge highlighting how much paper we
use as a company and a foraging walk.

27. MATERIALS

28. MATERIALS
We have delivered several glulam framed Sainsbury’s.
Our latest store at Portishead has an extensive PV array on the
roof, a biomass boiler, rainwater harvesting and an exceptionally
high airtightness of 1.24 changes/hr

29. NATURE

30. NATURE
Our Chatham Street Eco Residences has bird and bat boxes.
(It also has air source heat pumps, pre-heated fresh air to
bedrooms assisted by waste heat recovery, solar thermal panels for
hot water demand and rainwater harvesting)
Recent photo of Cardiff office’s green roof
A bird box made by Robin Davis, submitted for one of our Green
Week birdbox design competition, has a pair of nesting bluetits in it.
We’ve recently been appointed by BCC to develop designs for a
Green Wall in Stokes Croft.

31. ORIENTATION

32. ORIENTATION
Our passive solar development at Great Bow Yard was named the
‘Most energy efficient street in the UK’ in a study by Eon and
Sheffield University when it was built.
We used sunspaces in our Letchworth ecohouses scheme and
have since explored the wintergarden concept on apartment
buildings.

33. PASSIVHAUS

34. PASSIVHAUS
Our British Homes Awards Passivhaus competition finalist is set to
be built in the near future.
We have designed 3 passivhauses in south Bristol which are
currently on site, being delivered by GCP architects.
We now have our own Passivhaus capability when Seya Tansill
became accredited last year.
We are currently developing a passivhaus scheme in Evesham.

35. QUALITY

36. QUALITY
We have been using ISO 14001 Quality and
Environmental accredited for 10 years
It is managed by Simon Trew and our Environmental
Assessment team

37. RE-USE

38. RE-USE
Our Heartlands development
achieved BREEAM Excellent for all
buildings including 10 Grade II* and
6 Grade II.
It has a biomass district heating
scheme, 180,000 litre site wide
rainwater recycling system.
25,000m3 contaminated spoil from
works including arsenic, heavy
metals & Japanese knotweed yet
less than 5% finally removed from
site.

39. STRAW BALES

40. Our extension to UWE’s architecture school has a
straw bale insulated lecture theatre.
The building is the first to use a new rain screen
cladding tile made from recycled slate and clay dust. A
chip fat bio-fuel boiler, PV roof and rainwater
harvesting are also incorporated.
STRAW BALES

41. TECHNOLOGY

42. TECHNOLOGY
Our double PV array at the National Composite Centre
is the largest in Bristol.
We have recently won planning approval to put PVs
onto our listed Plymouth office, in appeal.
At Tremough we used a concrete-saving technique in
the building’s structure

43. USP…

44. USP…
… is our staff!

45. vOSA

46. vOSA
Our building for the Vehicle Testing Agency
is naturally ventilated using natural stack
principles and is designed to have high
levels of daylighting. It has high thermal
mass, high insulation and airtightness
levels and has an array of PVs.

47. WILDFLOWER STRIP

48. In 2013 we dug up a strip of grass outside
our offices along the Promenade. In the
same year that we invited BCC’s Meadow
Bristol team and the designer of the
Olympic parkland, Nigel Dunnett to speak at
a seminar on bees we organised for our
Green Week.
We sowed more seeds this year when we
successfully signing up to a Lottery funded
Kew gardens scheme. We will be putting out
signage this week advertising the initiative.
WILDFLOWER STRIP

49. XINTERNAL CALLS

50. XINTERNAL CALLS
DURING GREEN WEEK TO
ENCOURAGE STAFF TO GET UP
AND HAVE CONVERSATIONS AND
EXERCISE IN THE OFFICE

51. YOGA

52. YOGA
A third of our Bath office have weekly
yoga sessions

53. ZOE

54. ZOE
From a test trial of an electric bike we now
have our own electric bicycle and Zoe our
electric car has been well-used since
introduced last year. We have now installed
an electric charging point in Cardiff in
addition to the one in Bristol.